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KAFKA-506 Move to logical offsets. Reviewed by Jun and Neha. 

git-svn-id: https://svn.apache.org/repos/asf/incubator/kafka/branches/0.8@1395729 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
Edward Jay Kreps 2012-10-08 19:13:24 +00:00
parent 3f1fbb1d07
commit f64fd3dcba
69 changed files with 2380 additions and 1778 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
core/src/main/scala/kafka/Kafka.scala
View File

@ -24,7 +24,6 @@ import utils.{Utils, Logging}
object Kafka extends Logging {
def main(args: Array[String]): Unit = {
if (args.length != 1) {
println("USAGE: java [options] %s server.properties".format(classOf[KafkaServer].getSimpleName()))
System.exit(1)

3
core/src/main/scala/kafka/api/FetchResponse.scala
View File

@ -34,7 +34,7 @@ object FetchResponsePartitionData {
val messageSetBuffer = buffer.slice()
messageSetBuffer.limit(messageSetSize)
buffer.position(buffer.position + messageSetSize)
new FetchResponsePartitionData(partition, error, initialOffset, hw, new ByteBufferMessageSet(messageSetBuffer, initialOffset))
new FetchResponsePartitionData(partition, error, initialOffset, hw, new ByteBufferMessageSet(messageSetBuffer))
}
val headerSize =
@ -50,6 +50,7 @@ case class FetchResponsePartitionData(partition: Int, error: Short = ErrorMappin
val sizeInBytes = FetchResponsePartitionData.headerSize + messages.sizeInBytes.intValue()
def this(partition: Int, messages: MessageSet) = this(partition, ErrorMapping.NoError, 0L, -1L, messages)
}
// SENDS

19
core/src/main/scala/kafka/api/ProducerRequest.scala
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@ -72,12 +72,12 @@ object ProducerRequest {
}
}
case class ProducerRequest( versionId: Short = ProducerRequest.CurrentVersion,
correlationId: Int,
clientId: String,
requiredAcks: Short,
ackTimeoutMs: Int,
data: Map[TopicAndPartition, ProducerRequestPartitionData])
case class ProducerRequest(versionId: Short = ProducerRequest.CurrentVersion,
correlationId: Int,
clientId: String,
requiredAcks: Short,
ackTimeoutMs: Int,
data: Map[TopicAndPartition, ProducerRequestPartitionData])
extends RequestOrResponse(Some(RequestKeys.ProduceKey)) {
/**
@ -107,10 +107,11 @@ case class ProducerRequest( versionId: Short = ProducerRequest.CurrentVersion,
buffer.putInt(topicAndPartitionData.size) //the number of partitions
topicAndPartitionData.foreach(partitionAndData => {
val partitionData = partitionAndData._2
val bytes = partitionData.messages.asInstanceOf[ByteBufferMessageSet].buffer
buffer.putInt(partitionData.partition)
buffer.putInt(partitionData.messages.asInstanceOf[ByteBufferMessageSet].buffer.limit)
buffer.put(partitionData.messages.asInstanceOf[ByteBufferMessageSet].buffer)
partitionData.messages.asInstanceOf[ByteBufferMessageSet].buffer.rewind
buffer.putInt(bytes.limit)
buffer.put(bytes)
bytes.rewind
})
}
}

2
core/src/main/scala/kafka/api/ProducerResponse.scala
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@ -43,7 +43,7 @@ object ProducerResponse {
}
}
case class ProducerResponseStatus(error: Short, nextOffset: Long)
case class ProducerResponseStatus(error: Short, offset: Long)
case class ProducerResponse(versionId: Short,

10
core/src/main/scala/kafka/cluster/Partition.scala
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@ -43,7 +43,7 @@ class Partition(val topic: String,
private val leaderISRUpdateLock = new Object
private var zkVersion: Int = LeaderAndIsr.initialZKVersion
private var leaderEpoch: Int = LeaderAndIsr.initialLeaderEpoch - 1
this.logIdent = "Partition [%s, %d] on broker %d, ".format(topic, partitionId, localBrokerId)
this.logIdent = "Partition [%s, %d] on broker %d: ".format(topic, partitionId, localBrokerId)
private def isReplicaLocal(replicaId: Int) : Boolean = (replicaId == localBrokerId)
@ -116,7 +116,7 @@ class Partition(val topic: String,
def makeLeaderOrFollower(topic: String, partitionId: Int, leaderAndISR: LeaderAndIsr, isMakingLeader: Boolean): Boolean = {
leaderISRUpdateLock synchronized {
if (leaderEpoch >= leaderAndISR.leaderEpoch){
info("Current leaderEpoch [%d] is larger or equal to the requested leaderEpoch [%d], discard the become %s request"
info("Current leader epoch [%d] is larger or equal to the requested leader epoch [%d], discard the become %s request"
.format(leaderEpoch, leaderAndISR.leaderEpoch, if(isMakingLeader) "leader" else "follower"))
return false
}
@ -183,7 +183,7 @@ class Partition(val topic: String,
def updateLeaderHWAndMaybeExpandISR(replicaId: Int, offset: Long) {
leaderISRUpdateLock synchronized {
debug("Recording follower %d position %d for topic %s partition %d".format(replicaId, offset, topic, partitionId))
debug("Recording follower %d position %d for topic %s partition %d.".format(replicaId, offset, topic, partitionId))
val replica = getOrCreateReplica(replicaId)
replica.logEndOffset = offset
@ -195,7 +195,7 @@ class Partition(val topic: String,
if (!inSyncReplicas.contains(replica) && replica.logEndOffset >= leaderHW) {
// expand ISR
val newInSyncReplicas = inSyncReplicas + replica
info("Expanding ISR for topic %s partition %d to %s".format(topic, partitionId, newInSyncReplicas.map(_.brokerId).mkString(",")))
info("Expanding ISR for topic %s partition %d to %s".format(topic, partitionId, newInSyncReplicas.map(_.brokerId).mkString(", ")))
// update ISR in ZK and cache
updateISR(newInSyncReplicas)
replicaManager.isrExpandRate.mark()
@ -289,7 +289,7 @@ class Partition(val topic: String,
}
private def updateISR(newISR: Set[Replica]) {
info("Updated ISR for topic %s partition %d to %s".format(topic, partitionId, newISR.mkString(",")))
info("Updated ISR for topic %s partition %d to %s".format(topic, partitionId, newISR.mkString(", ")))
val newLeaderAndISR = new LeaderAndIsr(localBrokerId, leaderEpoch, newISR.map(r => r.brokerId).toList, zkVersion)
val (updateSucceeded, newVersion) = ZkUtils.conditionalUpdatePersistentPath(zkClient,
ZkUtils.getTopicPartitionLeaderAndIsrPath(topic, partitionId), newLeaderAndISR.toString, zkVersion)

8
core/src/main/scala/kafka/common/ErrorMapping.scala
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@ -67,11 +67,3 @@ object ErrorMapping {
def exceptionFor(code: Short) : Throwable = codeToException(code).newInstance()
}
class InvalidTopicException(message: String) extends RuntimeException(message) {
def this() = this(null)
}
class MessageSizeTooLargeException(message: String) extends RuntimeException(message) {
def this() = this(null)
}

32
core/src/main/scala/kafka/consumer/storage/MemoryOffsetStorage.scala → core/src/main/scala/kafka/common/InvalidTopicException.scala
View File

@ -5,7 +5,7 @@
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
@ -15,30 +15,8 @@
* limitations under the License.
*/
package kafka.consumer.storage
package kafka.common
import java.util.concurrent._
import java.util.concurrent.atomic._
import java.util.concurrent.locks._
class MemoryOffsetStorage extends OffsetStorage {
val offsetAndLock = new ConcurrentHashMap[(Int, String), (AtomicLong, Lock)]
def reserve(node: Int, topic: String): Long = {
val key = (node, topic)
if(!offsetAndLock.containsKey(key))
offsetAndLock.putIfAbsent(key, (new AtomicLong(0), new ReentrantLock))
val (offset, lock) = offsetAndLock.get(key)
lock.lock
offset.get
}
def commit(node: Int, topic: String, offset: Long) = {
val (highwater, lock) = offsetAndLock.get((node, topic))
highwater.set(offset)
lock.unlock
offset
}
}
class InvalidTopicException(message: String) extends RuntimeException(message) {
def this() = this(null)
}

22
core/src/main/scala/kafka/common/MessageSizeTooLargeException.scala Normal file
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@ -0,0 +1,22 @@
/**
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package kafka.common
class MessageSizeTooLargeException(message: String) extends RuntimeException(message) {
def this() = this(null)
}

14
core/src/main/scala/kafka/consumer/ConsumerFetcherThread.scala
View File

@ -28,16 +28,20 @@ class ConsumerFetcherThread(name: String,
val config: ConsumerConfig,
sourceBroker: Broker,
val consumerFetcherManager: ConsumerFetcherManager)
extends AbstractFetcherThread(name = name, sourceBroker = sourceBroker, socketTimeout = config.socketTimeoutMs,
socketBufferSize = config.socketBufferSize, fetchSize = config.fetchSize,
fetcherBrokerId = Request.NonFollowerId, maxWait = config.maxFetchWaitMs,
minBytes = config.minFetchBytes) {
extends AbstractFetcherThread(name = name,
sourceBroker = sourceBroker,
socketTimeout = config.socketTimeoutMs,
socketBufferSize = config.socketBufferSize,
fetchSize = config.fetchSize,
fetcherBrokerId = Request.NonFollowerId,
maxWait = config.maxFetchWaitMs,
minBytes = config.minFetchBytes) {
// process fetched data
def processPartitionData(topic: String, fetchOffset: Long, partitionData: FetchResponsePartitionData) {
val pti = consumerFetcherManager.getPartitionTopicInfo((topic, partitionData.partition))
if (pti.getFetchOffset != fetchOffset)
throw new RuntimeException("offset doesn't match for topic %s partition: %d pti offset: %d fetch ofset: %d"
throw new RuntimeException("Offset doesn't match for topic %s partition: %d pti offset: %d fetch offset: %d"
.format(topic, partitionData.partition, pti.getFetchOffset, fetchOffset))
pti.enqueue(partitionData.messages.asInstanceOf[ByteBufferMessageSet])
}

11
core/src/main/scala/kafka/consumer/ConsumerIterator.scala
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@ -22,7 +22,7 @@ import java.util.concurrent.{TimeUnit, BlockingQueue}
import kafka.serializer.Decoder
import java.util.concurrent.atomic.AtomicReference
import kafka.message.{MessageAndOffset, MessageAndMetadata}
import kafka.common.KafkaException
import kafka.common.{KafkaException, MessageSizeTooLargeException}
/**
@ -82,9 +82,16 @@ class ConsumerIterator[T](private val channel: BlockingQueue[FetchedDataChunk],
else currentDataChunk.messages.iterator
current.set(localCurrent)
}
// if we just updated the current chunk and it is empty that means the fetch size is too small!
if(currentDataChunk.messages.validBytes == 0)
throw new MessageSizeTooLargeException("Found a message larger than the maximum fetch size of this consumer on topic " +
"%s partition %d at fetch offset %d. Increase the fetch size, or decrease the maximum message size the broker will allow."
.format(currentDataChunk.topicInfo.topic, currentDataChunk.topicInfo.partitionId, currentDataChunk.fetchOffset))
}
val item = localCurrent.next()
consumedOffset = item.offset
consumedOffset = item.nextOffset
item.message.ensureValid() // validate checksum of message to ensure it is valid
new MessageAndMetadata(decoder.toEvent(item.message), currentTopicInfo.topic)
}

6
core/src/main/scala/kafka/consumer/FetchedDataChunk.scala
View File

@ -19,6 +19,6 @@ package kafka.consumer
import kafka.message.ByteBufferMessageSet
private[consumer] class FetchedDataChunk(val messages: ByteBufferMessageSet,
val topicInfo: PartitionTopicInfo,
val fetchOffset: Long)
case class FetchedDataChunk(messages: ByteBufferMessageSet,
topicInfo: PartitionTopicInfo,
fetchOffset: Long)

35
core/src/main/scala/kafka/consumer/PartitionTopicInfo.scala
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@ -22,13 +22,13 @@ import java.util.concurrent.atomic._
import kafka.message._
import kafka.utils.Logging
private[consumer] class PartitionTopicInfo(val topic: String,
val brokerId: Int,
val partitionId: Int,
private val chunkQueue: BlockingQueue[FetchedDataChunk],
private val consumedOffset: AtomicLong,
private val fetchedOffset: AtomicLong,
private val fetchSize: AtomicInteger) extends Logging {
class PartitionTopicInfo(val topic: String,
val brokerId: Int,
val partitionId: Int,
private val chunkQueue: BlockingQueue[FetchedDataChunk],
private val consumedOffset: AtomicLong,
private val fetchedOffset: AtomicLong,
private val fetchSize: AtomicInteger) extends Logging {
debug("initial consumer offset of " + this + " is " + consumedOffset.get)
debug("initial fetch offset of " + this + " is " + fetchedOffset.get)
@ -51,17 +51,28 @@ private[consumer] class PartitionTopicInfo(val topic: String,
* Enqueue a message set for processing
*/
def enqueue(messages: ByteBufferMessageSet) {
val size = messages.validBytes
val size = messages.sizeInBytes
if(size > 0) {
// update fetched offset to the compressed data chunk size, not the decompressed message set size
trace("Updating fetch offset = " + fetchedOffset.get + " with size = " + size)
val next = nextOffset(messages)
trace("Updating fetch offset = " + fetchedOffset.get + " to " + next)
chunkQueue.put(new FetchedDataChunk(messages, this, fetchedOffset.get))
val newOffset = fetchedOffset.addAndGet(size)
debug("updated fetch offset of ( %s ) to %d".format(this, newOffset))
fetchedOffset.set(next)
debug("updated fetch offset of (%s) to %d".format(this, next))
ConsumerTopicStat.getConsumerTopicStat(topic).byteRate.mark(size)
ConsumerTopicStat.getConsumerAllTopicStat().byteRate.mark(size)
}
}
/**
* Get the next fetch offset after this message set
*/
private def nextOffset(messages: ByteBufferMessageSet): Long = {
var nextOffset = -1L
val iter = messages.shallowIterator
while(iter.hasNext)
nextOffset = iter.next.nextOffset
nextOffset
}
override def toString(): String = topic + ":" + partitionId.toString + ": fetched offset = " + fetchedOffset.get +
": consumed offset = " + consumedOffset.get

8
core/src/main/scala/kafka/consumer/SimpleConsumer.scala
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@ -28,10 +28,10 @@ import kafka.metrics.{KafkaTimer, KafkaMetricsGroup}
* A consumer of kafka messages
*/
@threadsafe
class SimpleConsumer( val host: String,
val port: Int,
val soTimeout: Int,
val bufferSize: Int ) extends Logging {
class SimpleConsumer(val host: String,
val port: Int,
val soTimeout: Int,
val bufferSize: Int) extends Logging {
private val lock = new Object()
private val blockingChannel = new BlockingChannel(host, port, bufferSize, BlockingChannel.UseDefaultBufferSize, soTimeout)

155
core/src/main/scala/kafka/consumer/storage/OracleOffsetStorage.scala
View File

@ -1,155 +0,0 @@
/**
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package kafka.consumer.storage.sql
import java.sql._
import kafka.utils._
import kafka.consumer.storage.OffsetStorage
import kafka.common.KafkaException
/**
* An offset storage implementation that uses an oracle database to save offsets
*/
@nonthreadsafe
class OracleOffsetStorage(val connection: Connection) extends OffsetStorage with Logging {
private val lock = new Object
connection.setAutoCommit(false)
def reserve(node: Int, topic: String): Long = {
/* try to get and lock the offset, if it isn't there, make it */
val maybeOffset = selectExistingOffset(connection, node, topic)
val offset = maybeOffset match {
case Some(offset) => offset
case None => {
maybeInsertZeroOffset(connection, node, topic)
selectExistingOffset(connection, node, topic).get
}
}
debug("Reserved node " + node + " for topic '" + topic + " offset " + offset)
offset
}
def commit(node: Int, topic: String, offset: Long) {
var success = false
try {
updateOffset(connection, node, topic, offset)
success = true
} finally {
commitOrRollback(connection, success)
}
debug("Updated node " + node + " for topic '" + topic + "' to " + offset)
}
def close() {
Utils.swallow(logger.error, connection.close())
}
/**
* Attempt to update an existing entry in the table if there isn't already one there
* @return true iff the row didn't already exist
*/
private def maybeInsertZeroOffset(connection: Connection, node: Int, topic: String): Boolean = {
val stmt = connection.prepareStatement(
"""insert into kafka_offsets (node, topic, offset)
select ?, ?, 0 from dual where not exists
(select null from kafka_offsets where node = ? and topic = ?)""")
stmt.setInt(1, node)
stmt.setString(2, topic)
stmt.setInt(3, node)
stmt.setString(4, topic)
val updated = stmt.executeUpdate()
if(updated > 1)
throw new KafkaException("More than one key updated by primary key!")
else
updated == 1
}
/**
* Attempt to update an existing entry in the table
* @return true iff we updated an entry
*/
private def selectExistingOffset(connection: Connection, node: Int, topic: String): Option[Long] = {
val stmt = connection.prepareStatement(
"""select offset from kafka_offsets
where node = ? and topic = ?
for update""")
var results: ResultSet = null
try {
stmt.setInt(1, node)
stmt.setString(2, topic)
results = stmt.executeQuery()
if(!results.next()) {
None
} else {
val offset = results.getLong("offset")
if(results.next())
throw new KafkaException("More than one entry for primary key!")
Some(offset)
}
} finally {
close(stmt)
close(results)
}
}
private def updateOffset(connection: Connection,
node: Int,
topic: String,
newOffset: Long): Unit = {
val stmt = connection.prepareStatement("update kafka_offsets set offset = ? where node = ? and topic = ?")
try {
stmt.setLong(1, newOffset)
stmt.setInt(2, node)
stmt.setString(3, topic)
val updated = stmt.executeUpdate()
if(updated != 1)
throw new KafkaException("Unexpected number of keys updated: " + updated)
} finally {
close(stmt)
}
}
private def commitOrRollback(connection: Connection, commit: Boolean) {
if(connection != null) {
if(commit)
Utils.swallow(logger.error, connection.commit())
else
Utils.swallow(logger.error, connection.rollback())
}
}
private def close(rs: ResultSet) {
if(rs != null)
Utils.swallow(logger.error, rs.close())
}
private def close(stmt: PreparedStatement) {
if(stmt != null)
Utils.swallow(logger.error, stmt.close())
}
private def close(connection: Connection) {
if(connection != null)
Utils.swallow(logger.error, connection.close())
}
}

5
core/src/main/scala/kafka/javaapi/Implicits.scala
View File

@ -21,8 +21,9 @@ import kafka.utils.Logging
private[javaapi] object Implicits extends Logging {
implicit def scalaMessageSetToJavaMessageSet(messageSet: kafka.message.ByteBufferMessageSet):
kafka.javaapi.message.ByteBufferMessageSet =
new kafka.javaapi.message.ByteBufferMessageSet(messageSet)
kafka.javaapi.message.ByteBufferMessageSet = {
new kafka.javaapi.message.ByteBufferMessageSet(messageSet.buffer)
}
implicit def toJavaFetchResponse(response: kafka.api.FetchResponse): kafka.javaapi.FetchResponse =
new kafka.javaapi.FetchResponse(response)

8
core/src/main/scala/kafka/javaapi/TopicMetadata.scala
View File

@ -22,11 +22,11 @@ import scala.collection.JavaConversions.asList
private[javaapi] object MetadataListImplicits {
implicit def toJavaTopicMetadataList(topicMetadataSeq: Seq[kafka.api.TopicMetadata]):
java.util.List[kafka.javaapi.TopicMetadata] =
topicMetadataSeq.map(new kafka.javaapi.TopicMetadata(_))
asList(topicMetadataSeq.map(new kafka.javaapi.TopicMetadata(_)))
implicit def toPartitionMetadataList(partitionMetadataSeq: Seq[kafka.api.PartitionMetadata]):
java.util.List[kafka.javaapi.PartitionMetadata] =
partitionMetadataSeq.map(new kafka.javaapi.PartitionMetadata(_))
asList(partitionMetadataSeq.map(new kafka.javaapi.PartitionMetadata(_)))
}
class TopicMetadata(private val underlying: kafka.api.TopicMetadata) {
@ -51,9 +51,9 @@ class PartitionMetadata(private val underlying: kafka.api.PartitionMetadata) {
underlying.leader
}
def replicas: java.util.List[Broker] = underlying.replicas
def replicas: java.util.List[Broker] = asList(underlying.replicas)
def isr: java.util.List[Broker] = underlying.isr
def isr: java.util.List[Broker] = asList(underlying.isr)
def errorCode: Short = underlying.errorCode

4
core/src/main/scala/kafka/javaapi/TopicMetadataRequest.scala
View File

@ -18,13 +18,13 @@ package kafka.javaapi
import kafka.api._
import java.nio.ByteBuffer
import scala.collection.JavaConversions.asBuffer
import scala.collection.JavaConversions
class TopicMetadataRequest(val versionId: Short,
val clientId: String,
val topics: java.util.List[String]) extends RequestOrResponse(Some(kafka.api.RequestKeys.MetadataKey)) {
val underlying: kafka.api.TopicMetadataRequest =
new kafka.api.TopicMetadataRequest(versionId, clientId, topics)
new kafka.api.TopicMetadataRequest(versionId, clientId, JavaConversions.asBuffer(topics))
def this(topics: java.util.List[String]) =
this(kafka.api.TopicMetadataRequest.CurrentVersion, kafka.api.TopicMetadataRequest.DefaultClientId, topics)

19
core/src/main/scala/kafka/javaapi/message/ByteBufferMessageSet.scala
View File

@ -16,9 +16,21 @@
*/
package kafka.javaapi.message
import java.util.concurrent.atomic.AtomicLong
import scala.reflect.BeanProperty
import java.nio.ByteBuffer
import kafka.message._
class ByteBufferMessageSet(private val underlying: kafka.message.ByteBufferMessageSet) extends MessageSet {
class ByteBufferMessageSet(@BeanProperty val buffer: ByteBuffer) extends MessageSet {
private val underlying: kafka.message.ByteBufferMessageSet = new kafka.message.ByteBufferMessageSet(buffer)
def this(compressionCodec: CompressionCodec, messages: java.util.List[Message]) {
this(new kafka.message.ByteBufferMessageSet(compressionCodec, new AtomicLong(0), scala.collection.JavaConversions.asBuffer(messages): _*).buffer)
}
def this(messages: java.util.List[Message]) {
this(NoCompressionCodec, messages)
}
def validBytes: Long = underlying.validBytes
@ -41,12 +53,11 @@ class ByteBufferMessageSet(private val underlying: kafka.message.ByteBufferMessa
override def equals(other: Any): Boolean = {
other match {
case that: ByteBufferMessageSet =>
underlying.equals(that.underlying)
case that: ByteBufferMessageSet => buffer.equals(that.buffer)
case _ => false
}
}
override def hashCode: Int = underlying.hashCode
override def hashCode: Int = buffer.hashCode
}

204
core/src/main/scala/kafka/log/FileMessageSet.scala Normal file
View File

@ -0,0 +1,204 @@
/**
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package kafka.log
import java.io._
import java.nio._
import java.nio.channels._
import java.util.concurrent.atomic._
import kafka.utils._
import kafka.message._
import kafka.common.KafkaException
import java.util.concurrent.TimeUnit
import kafka.metrics.{KafkaTimer, KafkaMetricsGroup}
/**
* An on-disk message set. The set can be opened either mutably or immutably. Mutation attempts
* will fail on an immutable message set. An optional limit and start position can be applied to the message set
* which will control the position in the file at which the set begins
*/
@nonthreadsafe
class FileMessageSet private[kafka](val file: File,
private[log] val channel: FileChannel,
private[log] val start: Long, // the starting position in the file
private[log] val limit: Long, // the length (may be less than the file length)
val mutable: Boolean) extends MessageSet with Logging {
private val setSize = new AtomicLong()
if(mutable) {
if(limit < Long.MaxValue || start > 0)
throw new KafkaException("Attempt to open a mutable message set with a view or offset, which is not allowed.")
setSize.set(channel.size())
channel.position(channel.size)
} else {
setSize.set(scala.math.min(channel.size(), limit) - start)
}
/**
* Create a file message set with no limit or offset
*/
def this(file: File, channel: FileChannel, mutable: Boolean) =
this(file, channel, 0, Long.MaxValue, mutable)
/**
* Create a file message set with no limit or offset
*/
def this(file: File, mutable: Boolean) =
this(file, Utils.openChannel(file, mutable), mutable)
/**
* Return a message set which is a view into this set starting from the given position and with the given size limit.
*/
def read(position: Long, size: Long): FileMessageSet = {
new FileMessageSet(file, channel, this.start + position, scala.math.min(this.start + position + size, sizeInBytes()),
false)
}
/**
* Search forward for the file position of the last offset that is great than or equal to the target offset
* and return its physical position. If no such offsets are found, return null.
*/
private[log] def searchFor(targetOffset: Long, startingPosition: Int): OffsetPosition = {
var position = startingPosition
val buffer = ByteBuffer.allocate(12)
val size = setSize.get()
while(position + 12 < size) {
buffer.rewind()
channel.read(buffer, position)
if(buffer.hasRemaining)
throw new IllegalStateException("Failed to read complete buffer.")
buffer.rewind()
val offset = buffer.getLong()
if(offset >= targetOffset)
return OffsetPosition(offset, position)
val messageSize = buffer.getInt()
position += MessageSet.LogOverhead + messageSize
}
null
}
/**
* Write some of this set to the given channel, return the amount written
*/
def writeTo(destChannel: GatheringByteChannel, writePosition: Long, size: Long): Long =
channel.transferTo(start + writePosition, scala.math.min(size, sizeInBytes), destChannel)
/**
* Get an iterator over the messages in the set
*/
override def iterator: Iterator[MessageAndOffset] = {
new IteratorTemplate[MessageAndOffset] {
var location = start
override def makeNext(): MessageAndOffset = {
// read the size of the item
val sizeOffsetBuffer = ByteBuffer.allocate(12)
channel.read(sizeOffsetBuffer, location)
if(sizeOffsetBuffer.hasRemaining)
return allDone()
sizeOffsetBuffer.rewind()
val offset = sizeOffsetBuffer.getLong()
val size = sizeOffsetBuffer.getInt()
if (size < Message.MinHeaderSize)
return allDone()
// read the item itself
val buffer = ByteBuffer.allocate(size)
channel.read(buffer, location + 12)
if(buffer.hasRemaining)
return allDone()
buffer.rewind()
// increment the location and return the item
location += size + 12
new MessageAndOffset(new Message(buffer), offset)
}
}
}
/**
* The number of bytes taken up by this file set
*/
def sizeInBytes(): Long = setSize.get()
def checkMutable(): Unit = {
if(!mutable)
throw new KafkaException("Attempt to invoke mutation on immutable message set.")
}
/**
* Append this message to the message set
*/
def append(messages: MessageSet): Unit = {
checkMutable()
var written = 0L
while(written < messages.sizeInBytes)
written += messages.writeTo(channel, 0, messages.sizeInBytes)
setSize.getAndAdd(written)
}
/**
* Commit all written data to the physical disk
*/
def flush() = {
checkMutable()
LogFlushStats.logFlushTimer.time {
channel.force(true)
}
}
/**
* Close this message set
*/
def close() {
if(mutable)
flush()
channel.close()
}
/**
* Delete this message set from the filesystem
*/
def delete(): Boolean = {
Utils.swallow(channel.close())
file.delete()
}
/**
* Truncate this file message set to the given size. Note that this API does no checking that the
* given size falls on a valid byte offset.
*/
def truncateTo(targetSize: Long) = {
checkMutable()
if(targetSize > sizeInBytes())
throw new KafkaException("Attempt to truncate log segment to %d bytes failed since the current ".format(targetSize) +
" size of this log segment is only %d bytes".format(sizeInBytes()))
channel.truncate(targetSize)
channel.position(targetSize)
setSize.set(targetSize)
}
}
object LogFlushStats extends KafkaMetricsGroup {
val logFlushTimer = new KafkaTimer(newTimer("LogFlushRateAndTimeMs", TimeUnit.MILLISECONDS, TimeUnit.SECONDS))
}

472
core/src/main/scala/kafka/log/Log.scala
View File

@ -20,50 +20,44 @@ package kafka.log
import kafka.api.OffsetRequest
import java.io.{IOException, File}
import java.util.{Comparator, Collections, ArrayList}
import java.util.concurrent.atomic.{AtomicBoolean, AtomicLong, AtomicInteger}
import java.util.concurrent.atomic._
import kafka.utils._
import scala.math._
import java.text.NumberFormat
import kafka.server.BrokerTopicStat
import kafka.message.{ByteBufferMessageSet, MessageSet, InvalidMessageException, FileMessageSet}
import kafka.message._
import kafka.common._
import kafka.metrics.KafkaMetricsGroup
import com.yammer.metrics.core.Gauge
import kafka.common.{KafkaStorageException, KafkaException, InvalidMessageSizeException, OffsetOutOfRangeException}
object Log {
val FileSuffix = ".kafka"
val LogFileSuffix = ".log"
val IndexFileSuffix = ".index"
/**
* Find a given range object in a list of ranges by a value in that range. Does a binary search over the ranges
* but instead of checking for equality looks within the range. Takes the array size as an option in case
* the array grows while searching happens
*
* TODO: This should move into SegmentList.scala
* Search for the greatest range with start <= the target value.
*/
def findRange[T <: Range](ranges: Array[T], value: Long, arraySize: Int): Option[T] = {
if(ranges.size < 1)
return None
// check out of bounds
if(value < ranges(0).start || value > ranges(arraySize - 1).start + ranges(arraySize - 1).size)
throw new OffsetOutOfRangeException("offset " + value + " is out of range")
// check at the end
if (value == ranges(arraySize - 1).start + ranges(arraySize - 1).size)
if(value < ranges(0).start)
return None
var low = 0
var high = arraySize - 1
while(low <= high) {
val mid = (high + low) / 2
while(low < high) {
val mid = ceil((high + low) / 2.0).toInt
val found = ranges(mid)
if(found.contains(value))
if(found.start == value)
return Some(found)
else if (value < found.start)
high = mid - 1
else
low = mid + 1
low = mid
}
None
Some(ranges(low))
}
def findRange[T <: Range](ranges: Array[T], value: Long): Option[T] =
@ -73,13 +67,19 @@ object Log {
* Make log segment file name from offset bytes. All this does is pad out the offset number with zeros
* so that ls sorts the files numerically
*/
def nameFromOffset(offset: Long): String = {
def filenamePrefixFromOffset(offset: Long): String = {
val nf = NumberFormat.getInstance()
nf.setMinimumIntegerDigits(20)
nf.setMaximumFractionDigits(0)
nf.setGroupingUsed(false)
nf.format(offset) + FileSuffix
nf.format(offset)
}
def logFilename(dir: File, offset: Long) =
new File(dir, filenamePrefixFromOffset(offset) + LogFileSuffix)
def indexFilename(dir: File, offset: Long) =
new File(dir, filenamePrefixFromOffset(offset) + IndexFileSuffix)
def getEmptyOffsets(timestamp: Long): Seq[Long] =
if (timestamp == OffsetRequest.LatestTime || timestamp == OffsetRequest.EarliestTime)
@ -89,52 +89,29 @@ object Log {
/**
* A segment file in the log directory. Each log segment consists of an open message set, a start offset and a size
*/
class LogSegment(val file: File, val messageSet: FileMessageSet, val start: Long, time: Time) extends Range {
var firstAppendTime: Option[Long] = None
@volatile var deleted = false
/* Return the size in bytes of this log segment */
def size: Long = messageSet.sizeInBytes()
/* Return the absolute end offset of this log segment */
def absoluteEndOffset: Long = start + messageSet.sizeInBytes()
def updateFirstAppendTime() {
if (firstAppendTime.isEmpty)
firstAppendTime = Some(time.milliseconds)
}
def append(messages: ByteBufferMessageSet) {
if (messages.sizeInBytes > 0) {
messageSet.append(messages)
updateFirstAppendTime()
}
}
override def toString() = "(file=" + file + ", start=" + start + ", size=" + size + ")"
/**
* Truncate this log segment upto absolute offset value. Since the offset specified is absolute, to compute the amount
* of data to be deleted, we have to compute the offset relative to start of the log segment
* @param offset Absolute offset for this partition
*/
def truncateTo(offset: Long) = {
messageSet.truncateTo(offset - start)
}
}
/**
* An append-only log for storing messages.
* An append-only log for storing messages.
*
* The log is a sequence of LogSegments, each with a base offset denoting the first message in the segment.
*
* New log segments are created according to a configurable policy that controls the size in bytes or time interval
* for a given segment.
*
*/
@threadsafe
private[kafka] class Log( val dir: File, val maxLogFileSize: Long, val maxMessageSize: Int, val flushInterval: Int,
val rollIntervalMs: Long, val needRecovery: Boolean, time: Time,
brokerId: Int = 0) extends Logging with KafkaMetricsGroup {
private[kafka] class Log(val dir: File,
val maxLogFileSize: Long,
val maxMessageSize: Int,
val flushInterval: Int,
val rollIntervalMs: Long,
val needsRecovery: Boolean,
val maxIndexSize: Int = (10*1024*1024),
val indexIntervalBytes: Int = 4096,
time: Time = SystemTime,
brokerId: Int = 0) extends Logging with KafkaMetricsGroup {
this.logIdent = "[Kafka Log on Broker " + brokerId + "], "
import kafka.log.Log._
/* A lock that guards all modifications to the log */
private val lock = new Object
@ -144,22 +121,17 @@ private[kafka] class Log( val dir: File, val maxLogFileSize: Long, val maxMessag
/* last time it was flushed */
private val lastflushedTime = new AtomicLong(System.currentTimeMillis)
/* The actual segments of the log */
/* the actual segments of the log */
private[log] val segments: SegmentList[LogSegment] = loadSegments()
/* Calculate the offset of the next message */
private var nextOffset: AtomicLong = new AtomicLong(segments.view.last.nextOffset())
newGauge(
name + "-" + "NumLogSegments",
new Gauge[Int] {
def value() = numberOfSegments
}
)
newGauge(name + "-" + "NumLogSegments",
new Gauge[Int] { def value() = numberOfSegments })
newGauge(
name + "-" + "LogEndOffset",
new Gauge[Long] {
def value() = logEndOffset
}
)
newGauge(name + "-" + "LogEndOffset",
new Gauge[Long] { def value() = logEndOffset })
/* The name of this log */
def name = dir.getName()
@ -170,21 +142,29 @@ private[kafka] class Log( val dir: File, val maxLogFileSize: Long, val maxMessag
val logSegments = new ArrayList[LogSegment]
val ls = dir.listFiles()
if(ls != null) {
for(file <- ls if file.isFile && file.toString.endsWith(FileSuffix)) {
for(file <- ls if file.isFile && file.toString.endsWith(LogFileSuffix)) {
if(!file.canRead)
throw new IOException("Could not read file " + file)
val filename = file.getName()
val start = filename.substring(0, filename.length - FileSuffix.length).toLong
val messageSet = new FileMessageSet(file, false)
logSegments.add(new LogSegment(file, messageSet, start, time))
val start = filename.substring(0, filename.length - LogFileSuffix.length).toLong
// TODO: we should ideally rebuild any missing index files, instead of erroring out
if(!Log.indexFilename(dir, start).exists)
throw new IllegalStateException("Found log file with no corresponding index file.")
logSegments.add(new LogSegment(dir = dir,
startOffset = start,
mutable = false,
indexIntervalBytes = indexIntervalBytes,
maxIndexSize = maxIndexSize))
}
}
if(logSegments.size == 0) {
// no existing segments, create a new mutable segment
val newFile = new File(dir, nameFromOffset(0))
val set = new FileMessageSet(newFile, true)
logSegments.add(new LogSegment(newFile, set, 0, time))
logSegments.add(new LogSegment(dir = dir,
startOffset = 0,
mutable = true,
indexIntervalBytes = indexIntervalBytes,
maxIndexSize = maxIndexSize))
} else {
// there is at least one existing segment, validate and recover them/it
// sort segments into ascending order for fast searching
@ -195,30 +175,48 @@ private[kafka] class Log( val dir: File, val maxLogFileSize: Long, val maxMessag
else 1
}
})
validateSegments(logSegments)
//make the final section mutable and run recovery on it if necessary
val last = logSegments.remove(logSegments.size - 1)
last.messageSet.close()
info("Loading the last segment " + last.file.getAbsolutePath() + " in mutable mode, recovery " + needRecovery)
val mutable = new LogSegment(last.file, new FileMessageSet(last.file, true, new AtomicBoolean(needRecovery)), last.start, time)
logSegments.add(mutable)
last.close()
val mutableSegment = new LogSegment(dir = dir,
startOffset = last.start,
mutable = true,
indexIntervalBytes = indexIntervalBytes,
maxIndexSize = maxIndexSize)
if(needsRecovery)
recoverSegment(mutableSegment)
logSegments.add(mutableSegment)
}
new SegmentList(logSegments.toArray(new Array[LogSegment](logSegments.size)))
}
/**
* Check that the ranges and sizes add up, otherwise we have lost some data somewhere
* Run recovery on the given segment. This will rebuild the index from the log file and lop off any invalid bytes from the end of the log.
*/
private def validateSegments(segments: ArrayList[LogSegment]) {
lock synchronized {
for(i <- 0 until segments.size - 1) {
val curr = segments.get(i)
val next = segments.get(i+1)
if(curr.start + curr.size != next.start)
throw new KafkaException("The following segments don't validate: " + curr.file.getAbsolutePath() + ", " + next.file.getAbsolutePath())
private def recoverSegment(segment: LogSegment) {
segment.index.truncate()
var validBytes = 0
var lastIndexEntry = 0
val iter = segment.messageSet.iterator
try {
while(iter.hasNext) {
val entry = iter.next
entry.message.ensureValid()
if(validBytes - lastIndexEntry > indexIntervalBytes) {
segment.index.append(entry.offset, validBytes)
lastIndexEntry = validBytes
}
validBytes += MessageSet.entrySize(entry.message)
}
} catch {
case e: InvalidMessageException =>
logger.warn("Found invalid messages in log " + name)
}
val truncated = segment.messageSet.sizeInBytes - validBytes
if(truncated > 0)
warn("Truncated " + truncated + " invalid bytes from the log " + name + ".")
segment.messageSet.truncateTo(validBytes)
}
/**
@ -232,69 +230,110 @@ private[kafka] class Log( val dir: File, val maxLogFileSize: Long, val maxMessag
def close() {
debug("Closing log " + name)
lock synchronized {
for(seg <- segments.view) {
info("Closing log segment " + seg.file.getAbsolutePath)
seg.messageSet.close()
}
for(seg <- segments.view)
seg.close()
}
}
/**
* Append this message set to the active segment of the log, rolling over to a fresh segment if necessary.
* Returns the offset at which the messages are written.
* Returns a tuple containing (first_offset, last_offset) for the newly appended of the message set,
* or (-1,-1) if the message set is empty
*/
def append(messages: ByteBufferMessageSet): Unit = {
// validate the messages
messages.verifyMessageSize(maxMessageSize)
var numberOfMessages = 0
for(messageAndOffset <- messages) {
if(!messageAndOffset.message.isValid)
throw new InvalidMessageException()
numberOfMessages += 1;
def append(messages: ByteBufferMessageSet): (Long, Long) = {
// check that all messages are valid and see if we have any compressed messages
var messageCount = 0
var codec: CompressionCodec = NoCompressionCodec
for(messageAndOffset <- messages.shallowIterator) {
val m = messageAndOffset.message
m.ensureValid()
if(MessageSet.entrySize(m) > maxMessageSize)
throw new MessageSizeTooLargeException("Message size is %d bytes which exceeds the maximum configured message size of %d.".format(MessageSet.entrySize(m), maxMessageSize))
messageCount += 1;
val messageCodec = m.compressionCodec
if(messageCodec != NoCompressionCodec)
codec = messageCodec
}
BrokerTopicStat.getBrokerTopicStat(topicName).messagesInRate.mark(numberOfMessages)
BrokerTopicStat.getBrokerAllTopicStat.messagesInRate.mark(numberOfMessages)
// if we have any valid messages, append them to the log
if(messageCount == 0) {
(-1L, -1L)
} else {
BrokerTopicStat.getBrokerTopicStat(topicName).messagesInRate.mark(messageCount)
BrokerTopicStat.getBrokerAllTopicStat.messagesInRate.mark(messageCount)
// truncate the message set's buffer upto validbytes, before appending it to the on-disk log
val validByteBuffer = messages.buffer.duplicate()
// trim any invalid bytes or partial messages before appending it to the on-disk log
var validMessages = trimInvalidBytes(messages)
// they are valid, insert them in the log
lock synchronized {
try {
val firstOffset = nextOffset.get
// maybe roll the log
val segment = maybeRoll(segments.view.last)
// assign offsets to the messages
validMessages = validMessages.assignOffsets(nextOffset, codec)
trace("Appending message set to " + this.name + ": " + validMessages)
// now append to the log
segment.append(firstOffset, validMessages)
val lastOffset = nextOffset.get - 1
// maybe flush the log and index
maybeFlush(messageCount)
// return the offset at which the messages were appended
(firstOffset, lastOffset)
} catch {
case e: IOException => throw new KafkaStorageException("I/O exception in append to log '%s'".format(name), e)
}
}
}
}
/**
* Trim any invalid bytes from the end of this message set (if there are any)
*/
def trimInvalidBytes(messages: ByteBufferMessageSet): ByteBufferMessageSet = {
val messageSetValidBytes = messages.validBytes
if(messageSetValidBytes > Int.MaxValue || messageSetValidBytes < 0)
throw new InvalidMessageSizeException("Illegal length of message set " + messageSetValidBytes + " Message set cannot be appended to log. Possible causes are corrupted produce requests")
validByteBuffer.limit(messageSetValidBytes.asInstanceOf[Int])
val validMessages = new ByteBufferMessageSet(validByteBuffer)
// they are valid, insert them in the log
lock synchronized {
try {
var segment = segments.view.last
maybeRoll(segment)
segment = segments.view.last
segment.append(validMessages)
maybeFlush(numberOfMessages)
}
catch {
case e: IOException =>
throw new KafkaStorageException("IO exception in log append", e)
case e2 => throw e2
}
if(messageSetValidBytes == messages.sizeInBytes) {
messages
} else {
// trim invalid bytes
val validByteBuffer = messages.buffer.duplicate()
validByteBuffer.limit(messageSetValidBytes.asInstanceOf[Int])
new ByteBufferMessageSet(validByteBuffer)
}
}
/**
* Read from the log file at the given offset
* Read a message set from the log.
* startOffset - The logical offset to begin reading at
* maxLength - The maximum number of bytes to read
* maxOffset - The maximum logical offset to include in the resulting message set
*/
def read(offset: Long, length: Int): MessageSet = {
trace("Reading %d bytes from offset %d in log %s of length %s bytes".format(length, offset, name, size))
def read(startOffset: Long, maxLength: Int, maxOffset: Option[Long] = None): MessageSet = {
trace("Reading %d bytes from offset %d in log %s of length %d bytes".format(maxLength, startOffset, name, size))
val view = segments.view
Log.findRange(view, offset, view.length) match {
case Some(segment) =>
if(length <= 0)
MessageSet.Empty
else
segment.messageSet.read((offset - segment.start), length)
case _ => MessageSet.Empty
// check if the offset is valid and in range
val first = view.head.start
val next = nextOffset.get
if(startOffset == next)
return MessageSet.Empty
else if(startOffset > next || startOffset < first)
throw new OffsetOutOfRangeException("Request for offset %d but we only have log segments in the range %d to %d.".format(startOffset, first, next))
// Do the read on the segment with a base offset less than the target offset
// TODO: to handle sparse offsets, we need to skip to the next segment if this read doesn't find anything
Log.findRange(view, startOffset, view.length) match {
case None => throw new OffsetOutOfRangeException("Offset is earlier than the earliest offset")
case Some(segment) => segment.read(startOffset, maxLength, maxOffset)
}
}
@ -315,7 +354,7 @@ private[kafka] class Log( val dir: File, val maxLogFileSize: Long, val maxMessag
else {
// If the last segment to be deleted is empty and we roll the log, the new segment will have the same
// file name. So simply reuse the last segment and reset the modified time.
view(numToDelete - 1).file.setLastModified(time.milliseconds)
view(numToDelete - 1).messageSet.file.setLastModified(time.milliseconds)
numToDelete -=1
}
}
@ -329,58 +368,75 @@ private[kafka] class Log( val dir: File, val maxLogFileSize: Long, val maxMessag
def size: Long = segments.view.foldLeft(0L)(_ + _.size)
/**
* Get the absolute offset of the last message in the log
* Get the offset of the next message that will be appended
*/
def logEndOffset: Long = segments.view.last.start + segments.view.last.size
def logEndOffset: Long = nextOffset.get
/**
* Roll the log over if necessary
*/
private def maybeRoll(segment: LogSegment) {
private def maybeRoll(segment: LogSegment): LogSegment = {
if ((segment.messageSet.sizeInBytes > maxLogFileSize) ||
((segment.firstAppendTime.isDefined) && (time.milliseconds - segment.firstAppendTime.get > rollIntervalMs)))
((segment.firstAppendTime.isDefined) && (time.milliseconds - segment.firstAppendTime.get > rollIntervalMs)) ||
segment.index.isFull)
roll()
}
private def rollSegment(newOffset: Long) {
val newFile = new File(dir, nameFromOffset(newOffset))
if (newFile.exists) {
warn("newly rolled logsegment " + newFile.getName + " already exists; deleting it first")
newFile.delete()
}
debug("Rolling log '" + name + "' to " + newFile.getName())
segments.append(new LogSegment(newFile, new FileMessageSet(newFile, true), newOffset, time))
else
segment
}
/**
* Create a new segment and make it active
* Create a new segment and make it active, and return it
*/
def roll() {
def roll(): LogSegment = {
lock synchronized {
flush
rollSegment(logEndOffset)
flush()
rollToOffset(logEndOffset)
}
}
/**
* Roll the log over to the given new offset value
*/
private def rollToOffset(newOffset: Long): LogSegment = {
val logFile = logFilename(dir, newOffset)
val indexFile = indexFilename(dir, newOffset)
for(file <- List(logFile, indexFile); if file.exists) {
warn("Newly rolled segment file " + file.getName + " already exists; deleting it first")
file.delete()
}
debug("Rolling log '" + name + "' to " + logFile.getName + " and " + indexFile.getName)
segments.view.lastOption match {
case Some(segment) => segment.index.makeReadOnly()
case None =>
}
val segment = new LogSegment(dir,
startOffset = newOffset,
mutable = true,
indexIntervalBytes = indexIntervalBytes,
maxIndexSize = maxIndexSize)
segments.append(segment)
segment
}
/**
* Flush the log if necessary
*/
private def maybeFlush(numberOfMessages : Int) {
if(unflushed.addAndGet(numberOfMessages) >= flushInterval) {
if(unflushed.addAndGet(numberOfMessages) >= flushInterval)
flush()
}
}
/**
* Flush this log file to the physical disk
*/
def flush() : Unit = {
if (unflushed.get == 0) return
if (unflushed.get == 0)
return
lock synchronized {
debug("Flushing log '" + name + "' last flushed: " + getLastFlushedTime + " current time: " +
time.milliseconds)
segments.view.last.messageSet.flush()
segments.view.last.flush()
unflushed.set(0)
lastflushedTime.set(time.milliseconds)
}
@ -389,15 +445,15 @@ private[kafka] class Log( val dir: File, val maxLogFileSize: Long, val maxMessag
def getOffsetsBefore(timestamp: Long, maxNumOffsets: Int): Seq[Long] = {
val segsArray = segments.view
var offsetTimeArray: Array[(Long, Long)] = null
if (segsArray.last.size > 0)
if(segsArray.last.size > 0)
offsetTimeArray = new Array[(Long, Long)](segsArray.length + 1)
else
offsetTimeArray = new Array[(Long, Long)](segsArray.length)
for (i <- 0 until segsArray.length)
offsetTimeArray(i) = (segsArray(i).start, segsArray(i).file.lastModified)
if (segsArray.last.size > 0)
offsetTimeArray(segsArray.length) = (segsArray.last.start + segsArray.last.messageSet.sizeInBytes(), time.milliseconds)
for(i <- 0 until segsArray.length)
offsetTimeArray(i) = (segsArray(i).start, segsArray(i).messageSet.file.lastModified)
if(segsArray.last.size > 0)
offsetTimeArray(segsArray.length) = (logEndOffset, time.milliseconds)
var startIndex = -1
timestamp match {
@ -419,7 +475,7 @@ private[kafka] class Log( val dir: File, val maxLogFileSize: Long, val maxMessag
val retSize = maxNumOffsets.min(startIndex + 1)
val ret = new Array[Long](retSize)
for (j <- 0 until retSize) {
for(j <- 0 until retSize) {
ret(j) = offsetTimeArray(startIndex)._1
startIndex -= 1
}
@ -427,63 +483,77 @@ private[kafka] class Log( val dir: File, val maxLogFileSize: Long, val maxMessag
ret.toSeq.sortBy(- _)
}
/**
* Truncate all segments in the log and start a new segment on a new offset
*/
def truncateAndStartWithNewOffset(newOffset: Long) {
lock synchronized {
val deletedSegments = segments.trunc(segments.view.size)
rollSegment(newOffset)
deleteSegments(deletedSegments)
}
def delete(): Unit = {
deleteSegments(segments.contents.get())
Utils.rm(dir)
}
/* Attempts to delete all provided segments from a log and returns how many it was able to */
def deleteSegments(segments: Seq[LogSegment]): Int = {
var total = 0
for(segment <- segments) {
info("Deleting log segment " + segment.file.getName() + " from " + name)
swallow(segment.messageSet.close())
if(!segment.file.delete()) {
warn("Delete failed.")
info("Deleting log segment " + segment.start + " from " + name)
if(!segment.messageSet.delete() || !segment.index.delete()) {
warn("Delete of log segment " + segment.start + " failed.")
} else {
total += 1
}
}
total
}
def truncateTo(targetOffset: Long) {
if(targetOffset < 0)
throw new IllegalArgumentException("Cannot truncate to a negative offset (%d).".format(targetOffset))
lock synchronized {
val segmentsToBeDeleted = segments.view.filter(segment => segment.start > targetOffset)
val viewSize = segments.view.size
val numSegmentsDeleted = deleteSegments(segmentsToBeDeleted)
/* We should not hit this error because segments.view is locked in markedDeletedWhile() */
if(numSegmentsDeleted != segmentsToBeDeleted.size)
error("Failed to delete some segments during log recovery during truncateTo(" + targetOffset +")")
error("Failed to delete some segments when attempting to truncate to offset " + targetOffset +")")
if (numSegmentsDeleted == viewSize) {
segments.trunc(segments.view.size)
rollSegment(targetOffset)
rollToOffset(targetOffset)
this.nextOffset.set(targetOffset)
} else {
// find the log segment that has this hw
val segmentToBeTruncated =
segments.view.find(segment => targetOffset >= segment.start && targetOffset < segment.absoluteEndOffset)
segmentToBeTruncated match {
case Some(segment) =>
val truncatedSegmentIndex = segments.view.indexOf(segment)
segments.truncLast(truncatedSegmentIndex)
segment.truncateTo(targetOffset)
info("Truncated log segment %s to target offset %d".format(segment.file.getAbsolutePath, targetOffset))
case None =>
if(targetOffset > segments.view.last.absoluteEndOffset)
error("Target offset %d cannot be greater than the last message offset %d in the log %s".
format(targetOffset, segments.view.last.absoluteEndOffset, segments.view.last.file.getAbsolutePath))
if(targetOffset > logEndOffset) {
error("Target offset %d cannot be greater than the last message offset %d in the log %s".
format(targetOffset, logEndOffset, segments.view.last.messageSet.file.getAbsolutePath))
} else {
// find the log segment that has this hw
val segmentToBeTruncated = findRange(segments.view, targetOffset)
segmentToBeTruncated match {
case Some(segment) =>
val truncatedSegmentIndex = segments.view.indexOf(segment)
segments.truncLast(truncatedSegmentIndex)
segment.truncateTo(targetOffset)
this.nextOffset.set(targetOffset)
info("Truncated log segment %s to target offset %d".format(segments.view.last.messageSet.file.getAbsolutePath, targetOffset))
case None => // nothing to do
}
}
}
}
}
/**
* Truncate all segments in the log and start a new segment on a new offset
*/
def truncateAndStartWithNewOffset(newOffset: Long) {
lock synchronized {
val deletedSegments = segments.trunc(segments.view.size)
debug("Truncate and start log '" + name + "' to " + newOffset)
segments.append(new LogSegment(dir,
newOffset,
mutable = true,
indexIntervalBytes = indexIntervalBytes,
maxIndexSize = maxIndexSize))
deleteSegments(deletedSegments)
this.nextOffset.set(newOffset)
}
}
def topicName():String = {
name.substring(0, name.lastIndexOf("-"))

40
core/src/main/scala/kafka/log/LogManager.scala
View File

@ -46,7 +46,7 @@ private[kafka] class LogManager(val config: KafkaConfig,
private val logRetentionSizeMap = config.logRetentionSizeMap
private val logRetentionMsMap = config.logRetentionHoursMap.map(e => (e._1, e._2 * 60 * 60 * 1000L)) // convert hours to ms
private val logRollMsMap = config.logRollHoursMap.map(e => (e._1, e._2 * 60 * 60 * 1000L))
this.logIdent = "[Log Manager on Broker " + config.brokerId + "], "
this.logIdent = "[Log Manager on Broker " + config.brokerId + "] "
/* Initialize a log for each subdirectory of the main log directory */
private val logs = new Pool[String, Pool[Int, Log]]()
@ -69,7 +69,16 @@ private[kafka] class LogManager(val config: KafkaConfig,
val topic = Utils.getTopicPartition(dir.getName)._1
val rollIntervalMs = logRollMsMap.get(topic).getOrElse(this.logRollDefaultIntervalMs)
val maxLogFileSize = logFileSizeMap.get(topic).getOrElse(config.logFileSize)
val log = new Log(dir, maxLogFileSize, config.maxMessageSize, flushInterval, rollIntervalMs, needRecovery, time, config.brokerId)
val log = new Log(dir,
maxLogFileSize,
config.maxMessageSize,
flushInterval,
rollIntervalMs,
needRecovery,
config.logIndexMaxSizeBytes,
config.logIndexIntervalBytes,
time,
config.brokerId)
val topicPartition = Utils.getTopicPartition(dir.getName)
logs.putIfNotExists(topicPartition._1, new Pool[Int, Log]())
val parts = logs.get(topicPartition._1)
@ -88,7 +97,7 @@ private[kafka] class LogManager(val config: KafkaConfig,
scheduler.scheduleWithRate(cleanupLogs, "kafka-logcleaner-", 60 * 1000, logCleanupIntervalMs, false)
info("Starting log flusher every " + config.flushSchedulerThreadRate +
" ms with the following overrides " + logFlushIntervals)
scheduler.scheduleWithRate(flushAllLogs, "kafka-logflusher-",
scheduler.scheduleWithRate(flushDirtyLogs, "kafka-logflusher-",
config.flushSchedulerThreadRate, config.flushSchedulerThreadRate, false)
}
}
@ -103,7 +112,7 @@ private[kafka] class LogManager(val config: KafkaConfig,
d.mkdirs()
val rollIntervalMs = logRollMsMap.get(topic).getOrElse(this.logRollDefaultIntervalMs)
val maxLogFileSize = logFileSizeMap.get(topic).getOrElse(config.logFileSize)
new Log(d, maxLogFileSize, config.maxMessageSize, flushInterval, rollIntervalMs, false, time, config.brokerId)
new Log(d, maxLogFileSize, config.maxMessageSize, flushInterval, rollIntervalMs, needsRecovery = false, config.logIndexMaxSizeBytes, config.logIndexIntervalBytes, time, config.brokerId)
}
}
@ -162,7 +171,7 @@ private[kafka] class LogManager(val config: KafkaConfig,
val startMs = time.milliseconds
val topic = Utils.getTopicPartition(log.name)._1
val logCleanupThresholdMs = logRetentionMsMap.get(topic).getOrElse(this.logCleanupDefaultAgeMs)
val toBeDeleted = log.markDeletedWhile(startMs - _.file.lastModified > logCleanupThresholdMs)
val toBeDeleted = log.markDeletedWhile(startMs - _.messageSet.file.lastModified > logCleanupThresholdMs)
val total = log.deleteSegments(toBeDeleted)
total
}
@ -208,9 +217,9 @@ private[kafka] class LogManager(val config: KafkaConfig,
* Close all the logs
*/
def shutdown() {
info("shut down")
debug("Shutting down.")
allLogs.foreach(_.close())
info("shutted down completedly")
debug("Shutdown complete.")
}
/**
@ -218,21 +227,22 @@ private[kafka] class LogManager(val config: KafkaConfig,
*/
def allLogs() = logs.values.flatMap(_.values)
private def flushAllLogs() = {
debug("Flushing the high watermark of all logs")
for (log <- allLogs)
{
try{
/**
* Flush any log which has exceeded its flush interval and has unwritten messages.
*/
private def flushDirtyLogs() = {
debug("Checking for dirty logs to flush...")
for (log <- allLogs) {
try {
val timeSinceLastFlush = System.currentTimeMillis - log.getLastFlushedTime
var logFlushInterval = config.defaultFlushIntervalMs
if(logFlushIntervals.contains(log.topicName))
logFlushInterval = logFlushIntervals(log.topicName)
debug(log.topicName + " flush interval " + logFlushInterval +
" last flushed " + log.getLastFlushedTime + " timesincelastFlush: " + timeSinceLastFlush)
" last flushed " + log.getLastFlushedTime + " time since last flush: " + timeSinceLastFlush)
if(timeSinceLastFlush >= logFlushInterval)
log.flush
}
catch {
} catch {
case e =>
error("Error flushing topic " + log.topicName, e)
e match {

151
core/src/main/scala/kafka/log/LogSegment.scala Normal file
View File

@ -0,0 +1,151 @@
package kafka.log
import scala.math._
import java.io.File
import kafka.common._
import kafka.message._
import kafka.utils.{Utils, Range, Time, SystemTime, nonthreadsafe}
/**
* A segment of the log. Each segment has two components: a log and an index. The log is a FileMessageSet containing
* the actual messages. The index is an OffsetIndex that maps from logical offsets to physical file positions. Each
* segment has a base offset which is an offset <= the least offset of any message in this segment and > any offset in
* any previous segment.
*
* A segment with a base offset of [base_offset] would be stored in two files, a [base_offset].index and a [base_offset].log file.
*/
@nonthreadsafe
class LogSegment(val messageSet: FileMessageSet,
val index: OffsetIndex,
val start: Long,
val indexIntervalBytes: Int,
time: Time) extends Range {
var firstAppendTime: Option[Long] = None
/* the number of bytes since we last added an entry in the offset index */
var bytesSinceLastIndexEntry = 0
@volatile var deleted = false
def this(dir: File, startOffset: Long, mutable: Boolean, indexIntervalBytes: Int, maxIndexSize: Int) =
this(new FileMessageSet(file = Log.logFilename(dir, startOffset), mutable = mutable),
new OffsetIndex(file = Log.indexFilename(dir, startOffset), baseOffset = startOffset, mutable = mutable, maxIndexSize = maxIndexSize),
startOffset,
indexIntervalBytes,
SystemTime)
/* Return the size in bytes of this log segment */
def size: Long = messageSet.sizeInBytes()
def updateFirstAppendTime() {
if (firstAppendTime.isEmpty)
firstAppendTime = Some(time.milliseconds)
}
/**
* Append the given messages starting with the given offset. Add
* an entry to the index if needed.
*
* It is assumed this method is being called from within a lock
*/
def append(offset: Long, messages: ByteBufferMessageSet) {
if (messages.sizeInBytes > 0) {
// append an entry to the index (if needed)
if(bytesSinceLastIndexEntry > indexIntervalBytes) {
index.append(offset, messageSet.sizeInBytes().toInt)
this.bytesSinceLastIndexEntry = 0
}
// append the messages
messageSet.append(messages)
updateFirstAppendTime()
this.bytesSinceLastIndexEntry += messages.sizeInBytes.toInt
}
}
/**
* Find the physical file position for the least offset >= the given offset. If no offset is found
* that meets this criteria before the end of the log, return null.
*/
def translateOffset(offset: Long): OffsetPosition = {
val mapping = index.lookup(offset)
messageSet.searchFor(offset, mapping.position)
}
/**
* Read a message set from this segment beginning with the first offset
* greater than or equal to the startOffset. The message set will include
* no more than maxSize bytes and will end before maxOffset if a maxOffset is specified.
*/
def read(startOffset: Long, maxSize: Int, maxOffset: Option[Long]): MessageSet = {
if(maxSize <= 0)
return MessageSet.Empty
val startPosition = translateOffset(startOffset)
// if the start position is already off the end of the log, return MessageSet.Empty
if(startPosition == null)
return MessageSet.Empty
// calculate the length of the message set to read based on whether or not they gave us a maxOffset
val length =
maxOffset match {
case None =>
// no max offset, just use the max size they gave unmolested
maxSize
case Some(offset) => {
// there is a max offset, translate it to a file position and use that to calculate the max read size
val mapping = translateOffset(offset)
val endPosition =
if(mapping == null)
messageSet.sizeInBytes().toInt // the max offset is off the end of the log, use the end of the file
else
mapping.position
min(endPosition - startPosition.position, maxSize)
}
}
messageSet.read(startPosition.position, length)
}
override def toString() = "LogSegment(start=" + start + ", size=" + size + ")"
/**
* Truncate off all index and log entries with offsets greater than or equal to the current offset.
*/
def truncateTo(offset: Long) {
val mapping = translateOffset(offset)
if(mapping == null)
return
index.truncateTo(offset)
messageSet.truncateTo(mapping.position)
}
/**
* Calculate the offset that would be used for the next message to be append to this segment.
* Not that this is expensive.
*/
def nextOffset(): Long = {
val ms = read(index.lastOffset, messageSet.sizeInBytes.toInt, None)
ms.lastOption match {
case None => start
case Some(last) => last.nextOffset
}
}
/**
* Flush this log segment to disk
*/
def flush() {
messageSet.flush()
index.flush()
}
/**
* Close this log segment
*/
def close() {
Utils.swallow(index.close)
Utils.swallow(messageSet.close)
}
}

277
core/src/main/scala/kafka/log/OffsetIndex.scala Normal file
View File

@ -0,0 +1,277 @@
/**
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package kafka.log
import scala.math._
import java.io._
import java.nio._
import java.nio.channels._
import java.util.concurrent.atomic._
import kafka.utils._
/**
* An index that maps logical offsets to physical file locations for a particular log segment. This index may be sparse:
* that is it may not hold an entry for all messages in the log.
*
* The index is stored in a file that is pre-allocated to hold a fixed maximum number of 8-byte entries.
*
* The index supports lookups against a memory-map of this file. These lookups are done using a simple binary search variant
* to locate the offset/location pair for the greatest offset less than or equal to the target offset.
*
* Index files can be opened in two ways: either as an empty, mutable index that allows appends or
* an immutable read-only index file that has previously been populated. The makeReadOnly method will turn a mutable file into an
* immutable one and truncate off any extra bytes. This is done when the index file is rolled over.
*
* No attempt is made to checksum the contents of this file, in the event of a crash it is rebuilt.
*
* The file format is a series of entries. The physical format is a 4 byte "relative" offset and a 4 byte file location for the
* message with that offset. The offset stored is relative to the base offset of the index file. So, for example,
* if the base offset was 50, then the offset 55 would be stored as 5. Using relative offsets in this way let's us use
* only 4 bytes for the offset.
*
* The frequency of entries is up to the user of this class.
*
* All external APIs translate from relative offsets to full offsets, so users of this class do not interact with the internal
* storage format.
*/
class OffsetIndex(val file: File, val baseOffset: Long, var mutable: Boolean, maxIndexSize: Int = -1) extends Logging {
/* the memory mapping */
private var mmap: MappedByteBuffer =
{
val newlyCreated = file.createNewFile()
val raf = new RandomAccessFile(file, "rw")
try {
if(mutable) {
/* if mutable create and memory map a new sparse file */
if(maxIndexSize < 8)
throw new IllegalArgumentException("Invalid max index size: " + maxIndexSize)
/* pre-allocate the file if necessary */
if(newlyCreated)
raf.setLength(roundToExactMultiple(maxIndexSize, 8))
val idx = raf.getChannel.map(FileChannel.MapMode.READ_WRITE, 0, raf.length())
/* set the position in the index for the next entry */
if(newlyCreated)
idx.position(0)
else
// if this is a pre-existing index, assume it is all valid and set position to last entry
idx.position(roundToExactMultiple(idx.limit, 8))
idx
} else {
/* if not mutable, just mmap what they gave us */
val len = raf.length()
if(len < 0 || len % 8 != 0)
throw new IllegalStateException("Index file " + file.getName + " is corrupt, found " + len +
" bytes which is not positive or not a multiple of 8.")
raf.getChannel.map(FileChannel.MapMode.READ_ONLY, 0, len)
}
} finally {
Utils.swallow(raf.close())
}
}
/* the maximum number of entries this index can hold */
val maxEntries = mmap.limit / 8
/* the number of entries in the index */
private var size = if(mutable) new AtomicInteger(mmap.position / 8) else new AtomicInteger(mmap.limit / 8)
/* the last offset in the index */
var lastOffset = readLastOffset()
/**
* The last logical offset written to the index
*/
private def readLastOffset(): Long = {
val offset =
size.get match {
case 0 => 0
case s => logical(this.mmap, s-1)
}
baseOffset + offset
}
/**
* Find the largest offset less than or equal to the given targetOffset
* and return a pair holding this logical offset and it's corresponding physical file position.
* If the target offset is smaller than the least entry in the index (or the index is empty),
* the pair (baseOffset, 0) is returned.
*/
def lookup(targetOffset: Long): OffsetPosition = {
if(entries == 0)
return OffsetPosition(baseOffset, 0)
val idx = mmap.duplicate
val slot = indexSlotFor(idx, targetOffset)
if(slot == -1)
OffsetPosition(baseOffset, 0)
else
OffsetPosition(baseOffset + logical(idx, slot), physical(idx, slot))
}
/**
* Find the slot in which the largest offset less than or equal to the given
* target offset is stored.
* Return -1 if the least entry in the index is larger than the target offset
*/
private def indexSlotFor(idx: ByteBuffer, targetOffset: Long): Int = {
// we only store the difference from the baseoffset so calculate that
val relativeOffset = targetOffset - baseOffset
// check if the target offset is smaller than the least offset
if(logical(idx, 0) > relativeOffset)
return -1
// binary search for the entry
var lo = 0
var hi = entries-1
while(lo < hi) {
val mid = ceil((hi + lo) / 2.0).toInt
val found = logical(idx, mid)
if(found == relativeOffset)
return mid
else if(found < relativeOffset)
lo = mid
else
hi = mid - 1
}
return lo
}
/* return the nth logical offset relative to the base offset */
private def logical(buffer: ByteBuffer, n: Int): Int = buffer.getInt(n * 8)
/* return the nth physical offset */
private def physical(buffer: ByteBuffer, n: Int): Int = buffer.getInt(n * 8 + 4)
/**
* Get the nth offset mapping from the index
*/
def entry(n: Int): OffsetPosition = {
if(n >= entries)
throw new IllegalArgumentException("Attempt to fetch the %dth entry from an index of size %d.".format(n, entries))
val idx = mmap.duplicate
OffsetPosition(logical(idx, n), physical(idx, n))
}
/**
* Append entry for the given offset/location pair to the index. This entry must have a larger offset than all subsequent entries.
*/
def append(logicalOffset: Long, position: Int) {
this synchronized {
if(!mutable)
throw new IllegalStateException("Attempt to append to an immutable offset index " + file.getName)
if(isFull)
throw new IllegalStateException("Attempt to append to a full index (size = " + size + ").")
if(size.get > 0 && logicalOffset <= lastOffset)
throw new IllegalArgumentException("Attempt to append an offset (" + logicalOffset + ") no larger than the last offset appended (" + lastOffset + ").")
debug("Adding index entry %d => %d to %s.".format(logicalOffset, position, file.getName))
this.mmap.putInt((logicalOffset - baseOffset).toInt)
this.mmap.putInt(position)
this.size.incrementAndGet()
this.lastOffset = logicalOffset
}
}
/**
* True iff there are no more slots available in this index
*/
def isFull: Boolean = entries >= this.maxEntries
/**
* Truncate the entire index
*/
def truncate() = truncateTo(this.baseOffset)
/**
* Remove all entries from the index which have an offset greater than or equal to the given offset.
* Truncating to an offset larger than the largest in the index has no effect.
*/
def truncateTo(offset: Long) {
this synchronized {
val idx = mmap.duplicate
val slot = indexSlotFor(idx, offset)
/* There are 3 cases for choosing the new size
* 1) if there is no entry in the index <= the offset, delete everything
* 2) if there is an entry for this exact offset, delete it and everything larger than it
* 3) if there is no entry for this offset, delete everything larger than the next smallest
*/
val newEntries =
if(slot < 0)
0
else if(logical(idx, slot) == offset)
slot
else
slot + 1
this.size.set(newEntries)
mmap.position(this.size.get * 8)
this.lastOffset = readLastOffset
}
}
/**
* Make this segment read-only, flush any unsaved changes, and truncate any excess bytes
*/
def makeReadOnly() {
this synchronized {
mutable = false
flush()
val raf = new RandomAccessFile(file, "rws")
try {
val newLength = entries * 8
raf.setLength(newLength)
this.mmap = raf.getChannel().map(FileChannel.MapMode.READ_ONLY, 0, newLength)
} finally {
Utils.swallow(raf.close())
}
}
}
/**
* Flush the data in the index to disk
*/
def flush() {
this synchronized {
mmap.force()
}
}
/**
* Delete this index file
*/
def delete(): Boolean = {
this.file.delete()
}
/** The number of entries in this index */
def entries() = size.get
/** Close the index */
def close() {
if(mutable)
makeReadOnly()
}
/**
* Round a number to the greatest exact multiple of the given factor less than the given number.
* E.g. roundToExactMultiple(67, 8) == 64
*/
private def roundToExactMultiple(number: Int, factor: Int) = factor * (number / factor)
}

27
core/src/main/scala/kafka/consumer/storage/OffsetStorage.scala → core/src/main/scala/kafka/log/OffsetPosition.scala
View File

@ -5,7 +5,7 @@
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
@ -15,26 +15,11 @@
* limitations under the License.
*/
package kafka.consumer.storage
package kafka.log
/**
* A method for storing offsets for the consumer.
* This is used to track the progress of the consumer in the stream.
* The mapping between a logical log offset and the physical position
* in some log file of the beginning of the message set entry with the
* given offset.
*/
trait OffsetStorage {
/**
* Reserve a range of the length given by increment.
* @param increment The size to reserver
* @return The range reserved
*/
def reserve(node: Int, topic: String): Long
/**
* Update the offset to the new offset
* @param offset The new offset
*/
def commit(node: Int, topic: String, offset: Long)
}
case class OffsetPosition(val offset: Long, val position: Int)

6
core/src/main/scala/kafka/log/SegmentList.scala
View File

@ -72,8 +72,8 @@ private[log] class SegmentList[T](seq: Seq[T])(implicit m: ClassManifest[T]) {
* Delete the items from position (newEnd + 1) until end of list
*/
def truncLast(newEnd: Int): Seq[T] = {
if (newEnd < 0 || newEnd > contents.get().length-1)
throw new KafkaException("End index must be positive and less than segment list size.");
if (newEnd < 0 || newEnd >= contents.get().length)
throw new KafkaException("Attempt to truncate segment list of length %d to %d.".format(contents.get().size, newEnd));
var deleted: Array[T] = null
val curr = contents.get()
if (curr.length > 0) {
@ -95,6 +95,6 @@ private[log] class SegmentList[T](seq: Seq[T])(implicit m: ClassManifest[T]) {
/**
* Nicer toString method
*/
override def toString(): String = view.toString
override def toString(): String = "SegmentList(%s)".format(view.mkString(", "))
}

218
core/src/main/scala/kafka/message/ByteBufferMessageSet.scala
View File

@ -17,12 +17,72 @@
package kafka.message
import scala.reflect.BeanProperty
import kafka.utils.Logging
import java.nio.ByteBuffer
import java.nio.channels._
import java.io.{InputStream, ByteArrayInputStream, ByteArrayOutputStream, DataOutputStream, IOException}
import java.util.zip._
import java.util.concurrent.atomic.AtomicLong
import kafka.utils.IteratorTemplate
import kafka.common.{MessageSizeTooLargeException, InvalidMessageSizeException}
object ByteBufferMessageSet {
private def create(offsetCounter: AtomicLong, compressionCodec: CompressionCodec, messages: Message*): ByteBuffer = {
if(messages.size == 0) {
return MessageSet.Empty.buffer
} else if(compressionCodec == NoCompressionCodec) {
val buffer = ByteBuffer.allocate(MessageSet.messageSetSize(messages))
for(message <- messages)
writeMessage(buffer, message, offsetCounter.getAndIncrement)
buffer.rewind()
buffer
} else {
val byteArrayStream = new ByteArrayOutputStream(MessageSet.messageSetSize(messages))
val output = new DataOutputStream(CompressionFactory(compressionCodec, byteArrayStream))
var offset = -1L
for(message <- messages) {
offset = offsetCounter.getAndIncrement
output.writeLong(offset)
output.writeInt(message.size)
output.write(message.buffer.array, message.buffer.arrayOffset, message.buffer.limit)
}
output.close()
val bytes = byteArrayStream.toByteArray
val message = new Message(bytes, compressionCodec)
val buffer = ByteBuffer.allocate(message.size + MessageSet.LogOverhead)
writeMessage(buffer, message, offset)
buffer.rewind()
buffer
}
}
def decompress(message: Message): ByteBufferMessageSet = {
val outputStream: ByteArrayOutputStream = new ByteArrayOutputStream
val inputStream: InputStream = new ByteBufferBackedInputStream(message.payload)
val intermediateBuffer = new Array[Byte](1024)
val compressed = CompressionFactory(message.compressionCodec, inputStream)
Stream.continually(compressed.read(intermediateBuffer)).takeWhile(_ > 0).foreach { dataRead =>
outputStream.write(intermediateBuffer, 0, dataRead)
}
compressed.close()
val outputBuffer = ByteBuffer.allocate(outputStream.size)
outputBuffer.put(outputStream.toByteArray)
outputBuffer.rewind
new ByteBufferMessageSet(outputBuffer)
}
private def writeMessage(buffer: ByteBuffer, message: Message, offset: Long) {
buffer.putLong(offset)
buffer.putInt(message.size)
buffer.put(message.buffer)
message.buffer.rewind()
}
}
/**
* A sequence of messages stored in a byte buffer
*
@ -33,31 +93,34 @@ import kafka.common.{MessageSizeTooLargeException, InvalidMessageSizeException}
* Option 2: Give it a list of messages along with instructions relating to serialization format. Producers will use this method.
*
*/
class ByteBufferMessageSet(val buffer: ByteBuffer, val initialOffset: Long = 0L) extends MessageSet with Logging {
class ByteBufferMessageSet(@BeanProperty val buffer: ByteBuffer) extends MessageSet with Logging {
private var shallowValidByteCount = -1L
if(sizeInBytes > Int.MaxValue)
throw new InvalidMessageSizeException("Message set cannot be larger than " + Int.MaxValue)
def this(compressionCodec: CompressionCodec, messages: Message*) {
this(MessageSet.createByteBuffer(compressionCodec, messages:_*), 0L)
this(ByteBufferMessageSet.create(new AtomicLong(0), compressionCodec, messages:_*))
}
def this(compressionCodec: CompressionCodec, offsetCounter: AtomicLong, messages: Message*) {
this(ByteBufferMessageSet.create(offsetCounter, compressionCodec, messages:_*))
}
def this(messages: Message*) {
this(NoCompressionCodec, messages: _*)
this(NoCompressionCodec, new AtomicLong(0), messages: _*)
}
def validBytes: Long = shallowValidBytes
private def shallowValidBytes: Long = {
if(shallowValidByteCount < 0) {
var bytes = 0
val iter = this.internalIterator(true)
while(iter.hasNext) {
val messageAndOffset = iter.next
shallowValidByteCount = messageAndOffset.offset
bytes += MessageSet.entrySize(messageAndOffset.message)
}
this.shallowValidByteCount = bytes
}
if(shallowValidByteCount < initialOffset) 0
else (shallowValidByteCount - initialOffset)
shallowValidByteCount
}
/** Write the messages in this set to the given channel */
@ -74,71 +137,44 @@ class ByteBufferMessageSet(val buffer: ByteBuffer, val initialOffset: Long = 0L)
/** iterator over compressed messages without decompressing */
def shallowIterator: Iterator[MessageAndOffset] = internalIterator(true)
def verifyMessageSize(maxMessageSize: Int){
var shallowIter = internalIterator(true)
while(shallowIter.hasNext){
var messageAndOffset = shallowIter.next
val payloadSize = messageAndOffset.message.payloadSize
if ( payloadSize > maxMessageSize)
throw new MessageSizeTooLargeException("payload size of " + payloadSize + " larger than " + maxMessageSize)
}
}
/** When flag isShallow is set to be true, we do a shallow iteration: just traverse the first level of messages. This is used in verifyMessageSize() function **/
/** When flag isShallow is set to be true, we do a shallow iteration: just traverse the first level of messages. **/
private def internalIterator(isShallow: Boolean = false): Iterator[MessageAndOffset] = {
new IteratorTemplate[MessageAndOffset] {
var topIter = buffer.slice()
var currValidBytes = initialOffset
var innerIter:Iterator[MessageAndOffset] = null
var lastMessageSize = 0L
var innerIter: Iterator[MessageAndOffset] = null
def innerDone():Boolean = (innerIter==null || !innerIter.hasNext)
def innerDone():Boolean = (innerIter == null || !innerIter.hasNext)
def makeNextOuter: MessageAndOffset = {
if (topIter.remaining < 4) {
// if there isn't at least an offset and size, we are done
if (topIter.remaining < 12)
return allDone()
}
val offset = topIter.getLong()
val size = topIter.getInt()
lastMessageSize = size
trace("Remaining bytes in iterator = " + topIter.remaining)
trace("size of data = " + size)
if(size < 0 || topIter.remaining < size) {
if (currValidBytes == initialOffset || size < 0)
throw new InvalidMessageSizeException("invalid message size: " + size + " only received bytes: " +
topIter.remaining + " at " + currValidBytes + "( possible causes (1) a single message larger than " +
"the fetch size; (2) log corruption )")
if(size < 0)
throw new InvalidMessageException("Message found with corrupt size (" + size + ")")
// we have an incomplete message
if(topIter.remaining < size)
return allDone()
}
// read the current message and check correctness
val message = topIter.slice()
message.limit(size)
topIter.position(topIter.position + size)
val newMessage = new Message(message)
if(!newMessage.isValid)
throw new InvalidMessageException("message is invalid, compression codec: " + newMessage.compressionCodec
+ " size: " + size + " curr offset: " + currValidBytes + " init offset: " + initialOffset)
if(isShallow){
currValidBytes += 4 + size
trace("shallow iterator currValidBytes = " + currValidBytes)
new MessageAndOffset(newMessage, currValidBytes)
}
else{
if(isShallow) {
new MessageAndOffset(newMessage, offset)
} else {
newMessage.compressionCodec match {
case NoCompressionCodec =>
debug("Message is uncompressed. Valid byte count = %d".format(currValidBytes))
innerIter = null
currValidBytes += 4 + size
trace("currValidBytes = " + currValidBytes)
new MessageAndOffset(newMessage, currValidBytes)
new MessageAndOffset(newMessage, offset)
case _ =>
debug("Message is compressed. Valid byte count = %d".format(currValidBytes))
innerIter = CompressionUtils.decompress(newMessage).internalIterator()
if (!innerIter.hasNext) {
currValidBytes += 4 + lastMessageSize
innerIter = ByteBufferMessageSet.decompress(newMessage).internalIterator()
if(!innerIter.hasNext)
innerIter = null
}
makeNext()
}
}
@ -147,50 +183,62 @@ class ByteBufferMessageSet(val buffer: ByteBuffer, val initialOffset: Long = 0L)
override def makeNext(): MessageAndOffset = {
if(isShallow){
makeNextOuter
}
else{
val isInnerDone = innerDone()
debug("makeNext() in internalIterator: innerDone = " + isInnerDone)
isInnerDone match {
case true => makeNextOuter
case false => {
val messageAndOffset = innerIter.next
if (!innerIter.hasNext)
currValidBytes += 4 + lastMessageSize
new MessageAndOffset(messageAndOffset.message, currValidBytes)
}
}
} else {
if(innerDone())
makeNextOuter
else
innerIter.next
}
}
}
}
/**
* Update the offsets for this message set. This method attempts to do an in-place conversion
* if there is no compression, but otherwise recopies the messages
*/
private[kafka] def assignOffsets(offsetCounter: AtomicLong, codec: CompressionCodec): ByteBufferMessageSet = {
if(codec == NoCompressionCodec) {
// do an in-place conversion
var position = 0
buffer.mark()
while(position < sizeInBytes - MessageSet.LogOverhead) {
buffer.position(position)
buffer.putLong(offsetCounter.getAndIncrement())
position += MessageSet.LogOverhead + buffer.getInt()
}
buffer.reset()
this
} else {
// messages are compressed, crack open the messageset and recompress with correct offset
val messages = this.internalIterator(isShallow = false).map(_.message)
new ByteBufferMessageSet(compressionCodec = codec, offsetCounter = offsetCounter, messages = messages.toBuffer:_*)
}
}
/**
* The total number of bytes in this message set, including any partial trailing messages
*/
def sizeInBytes: Long = buffer.limit
override def toString: String = {
val builder = new StringBuilder()
builder.append("ByteBufferMessageSet(")
for(message <- this) {
builder.append(message)
builder.append(", ")
}
builder.append(")")
builder.toString
}
/**
* The total number of bytes in this message set not including any partial, trailing messages
*/
def validBytes: Long = shallowValidBytes
/**
* Two message sets are equal if their respective byte buffers are equal
*/
override def equals(other: Any): Boolean = {
other match {
case that: ByteBufferMessageSet =>
buffer.equals(that.buffer) && initialOffset == that.initialOffset
case that: ByteBufferMessageSet =>
buffer.equals(that.buffer)
case _ => false
}
}
override def hashCode: Int = {
var hash = 17
hash = hash * 31 + buffer.hashCode
hash = hash * 31 + initialOffset.hashCode
hash
}
override def hashCode: Int = buffer.hashCode
}

55
core/src/main/scala/kafka/message/CompressionFactory.scala Normal file
View File

@ -0,0 +1,55 @@
/**
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package kafka.message
import java.io.OutputStream
import java.io.ByteArrayOutputStream
import java.util.zip.GZIPOutputStream
import java.util.zip.GZIPInputStream
import java.io.IOException
import java.io.InputStream
import java.nio.ByteBuffer
import java.util.concurrent.atomic.AtomicLong
import kafka.utils._
object CompressionFactory {
def apply(compressionCodec: CompressionCodec, stream: OutputStream): OutputStream = {
compressionCodec match {
case DefaultCompressionCodec => new GZIPOutputStream(stream)
case GZIPCompressionCodec => new GZIPOutputStream(stream)
case SnappyCompressionCodec =>
import org.xerial.snappy.SnappyOutputStream
new SnappyOutputStream(stream)
case _ =>
throw new kafka.common.UnknownCodecException("Unknown Codec: " + compressionCodec)
}
}
def apply(compressionCodec: CompressionCodec, stream: InputStream): InputStream = {
compressionCodec match {
case DefaultCompressionCodec => new GZIPInputStream(stream)
case GZIPCompressionCodec => new GZIPInputStream(stream)
case SnappyCompressionCodec =>
import org.xerial.snappy.SnappyInputStream
new SnappyInputStream(stream)
case _ =>
throw new kafka.common.UnknownCodecException("Unknown Codec: " + compressionCodec)
}
}
}

160
core/src/main/scala/kafka/message/CompressionUtils.scala
View File

@ -1,160 +0,0 @@
/**
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package kafka.message
import java.io.ByteArrayOutputStream
import java.io.IOException
import java.io.InputStream
import java.nio.ByteBuffer
import kafka.utils._
abstract sealed class CompressionFacade(inputStream: InputStream, outputStream: ByteArrayOutputStream) {
def close() = {
if (inputStream != null) inputStream.close()
if (outputStream != null) outputStream.close()
}
def read(a: Array[Byte]): Int
def write(a: Array[Byte])
}
class GZIPCompression(inputStream: InputStream, outputStream: ByteArrayOutputStream) extends CompressionFacade(inputStream,outputStream) {
import java.util.zip.GZIPInputStream
import java.util.zip.GZIPOutputStream
val gzipIn:GZIPInputStream = if (inputStream == null) null else new GZIPInputStream(inputStream)
val gzipOut:GZIPOutputStream = if (outputStream == null) null else new GZIPOutputStream(outputStream)
override def close() {
if (gzipIn != null) gzipIn.close()
if (gzipOut != null) gzipOut.close()
super.close()
}
override def write(a: Array[Byte]) = {
gzipOut.write(a)
}
override def read(a: Array[Byte]): Int = {
gzipIn.read(a)
}
}
class SnappyCompression(inputStream: InputStream,outputStream: ByteArrayOutputStream) extends CompressionFacade(inputStream,outputStream) {
import org.xerial.snappy.SnappyInputStream
import org.xerial.snappy.SnappyOutputStream
val snappyIn:SnappyInputStream = if (inputStream == null) null else new SnappyInputStream(inputStream)
val snappyOut:SnappyOutputStream = if (outputStream == null) null else new SnappyOutputStream(outputStream)
override def close() = {
if (snappyIn != null) snappyIn.close()
if (snappyOut != null) snappyOut.close()
super.close()
}
override def write(a: Array[Byte]) = {
snappyOut.write(a)
}
override def read(a: Array[Byte]): Int = {
snappyIn.read(a)
}
}
object CompressionFactory {
def apply(compressionCodec: CompressionCodec, stream: ByteArrayOutputStream): CompressionFacade = compressionCodec match {
case GZIPCompressionCodec => new GZIPCompression(null,stream)
case SnappyCompressionCodec => new SnappyCompression(null,stream)
case _ =>
throw new kafka.common.UnknownCodecException("Unknown Codec: " + compressionCodec)
}
def apply(compressionCodec: CompressionCodec, stream: InputStream): CompressionFacade = compressionCodec match {
case GZIPCompressionCodec => new GZIPCompression(stream,null)
case SnappyCompressionCodec => new SnappyCompression(stream,null)
case _ =>
throw new kafka.common.UnknownCodecException("Unknown Codec: " + compressionCodec)
}
}
object CompressionUtils extends Logging{
//specify the codec which is the default when DefaultCompressionCodec is used
private var defaultCodec: CompressionCodec = GZIPCompressionCodec
def compress(messages: Iterable[Message], compressionCodec: CompressionCodec = DefaultCompressionCodec):Message = {
val outputStream:ByteArrayOutputStream = new ByteArrayOutputStream()
debug("Allocating message byte buffer of size = " + MessageSet.messageSetSize(messages))
var cf: CompressionFacade = null
if (compressionCodec == DefaultCompressionCodec)
cf = CompressionFactory(defaultCodec,outputStream)
else
cf = CompressionFactory(compressionCodec,outputStream)
val messageByteBuffer = ByteBuffer.allocate(MessageSet.messageSetSize(messages))
messages.foreach(m => m.serializeTo(messageByteBuffer))
messageByteBuffer.rewind
try {
cf.write(messageByteBuffer.array)
} catch {
case e: IOException => error("Error while writing to the GZIP output stream", e)
cf.close()
throw e
} finally {
cf.close()
}
val oneCompressedMessage:Message = new Message(outputStream.toByteArray, compressionCodec)
oneCompressedMessage
}
def decompress(message: Message): ByteBufferMessageSet = {
val outputStream:ByteArrayOutputStream = new ByteArrayOutputStream
val inputStream:InputStream = new ByteBufferBackedInputStream(message.payload)
val intermediateBuffer = new Array[Byte](1024)
var cf: CompressionFacade = null
if (message.compressionCodec == DefaultCompressionCodec)
cf = CompressionFactory(defaultCodec,inputStream)
else
cf = CompressionFactory(message.compressionCodec,inputStream)
try {
Stream.continually(cf.read(intermediateBuffer)).takeWhile(_ > 0).foreach { dataRead =>
outputStream.write(intermediateBuffer, 0, dataRead)
}
}catch {
case e: IOException => error("Error while reading from the GZIP input stream", e)
cf.close()
throw e
} finally {
cf.close()
}
val outputBuffer = ByteBuffer.allocate(outputStream.size)
outputBuffer.put(outputStream.toByteArray)
outputBuffer.rewind
val outputByteArray = outputStream.toByteArray
new ByteBufferMessageSet(outputBuffer)
}
}

245
core/src/main/scala/kafka/message/FileMessageSet.scala
View File

@ -1,245 +0,0 @@
/**
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package kafka.message
import java.io._
import java.nio._
import java.nio.channels._
import java.util.concurrent.atomic._
import kafka.utils._
import kafka.common.KafkaException
import java.util.concurrent.TimeUnit
import kafka.metrics.{KafkaTimer, KafkaMetricsGroup}
/**
* An on-disk message set. The set can be opened either mutably or immutably. Mutation attempts
* will fail on an immutable message set. An optional limit and offset can be applied to the message set
* which will control the offset into the file and the effective length into the file from which
* messages will be read
*/
@nonthreadsafe
class FileMessageSet private[kafka](private[message] val channel: FileChannel,
private[message] val offset: Long,
private[message] val limit: Long,
val mutable: Boolean,
val needRecover: AtomicBoolean) extends MessageSet with Logging {
private val setSize = new AtomicLong()
if(mutable) {
if(limit < Long.MaxValue || offset > 0)
throw new KafkaException("Attempt to open a mutable message set with a view or offset, which is not allowed.")
if (needRecover.get) {
// set the file position to the end of the file for appending messages
val startMs = System.currentTimeMillis
val truncated = recover()
info("Recovery succeeded in " + (System.currentTimeMillis - startMs) / 1000 +
" seconds. " + truncated + " bytes truncated. New log size is " + sizeInBytes() + " bytes")
}
else {
setSize.set(channel.size())
channel.position(channel.size)
}
} else {
setSize.set(scala.math.min(channel.size(), limit) - offset)
}
/**
* Create a file message set with no limit or offset
*/
def this(channel: FileChannel, mutable: Boolean) =
this(channel, 0, Long.MaxValue, mutable, new AtomicBoolean(false))
/**
* Create a file message set with no limit or offset
*/
def this(file: File, mutable: Boolean) =
this(Utils.openChannel(file, mutable), mutable)
/**
* Create a file message set with no limit or offset
*/
def this(channel: FileChannel, mutable: Boolean, needRecover: AtomicBoolean) =
this(channel, 0, Long.MaxValue, mutable, needRecover)
/**
* Create a file message set with no limit or offset
*/
def this(file: File, mutable: Boolean, needRecover: AtomicBoolean) =
this(Utils.openChannel(file, mutable), mutable, needRecover)
/**
* Return a message set which is a view into this set starting from the given offset and with the given size limit.
*/
def read(readOffset: Long, size: Long): FileMessageSet = {
new FileMessageSet(channel, this.offset + readOffset, scala.math.min(this.offset + readOffset + size, sizeInBytes()),
false, new AtomicBoolean(false))
}
/**
* Write some of this set to the given channel, return the ammount written
*/
def writeTo(destChannel: GatheringByteChannel, writeOffset: Long, size: Long): Long =
channel.transferTo(offset + writeOffset, scala.math.min(size, sizeInBytes), destChannel)
/**
* Get an iterator over the messages in the set
*/
override def iterator: Iterator[MessageAndOffset] = {
new IteratorTemplate[MessageAndOffset] {
var location = offset
override def makeNext(): MessageAndOffset = {
// read the size of the item
val sizeBuffer = ByteBuffer.allocate(4)
channel.read(sizeBuffer, location)
if(sizeBuffer.hasRemaining)
return allDone()
sizeBuffer.rewind()
val size: Int = sizeBuffer.getInt()
if (size < Message.MinHeaderSize)
return allDone()
// read the item itself
val buffer = ByteBuffer.allocate(size)
channel.read(buffer, location + 4)
if(buffer.hasRemaining)
return allDone()
buffer.rewind()
// increment the location and return the item
location += size + 4
new MessageAndOffset(new Message(buffer), location)
}
}
}
/**
* The number of bytes taken up by this file set
*/
def sizeInBytes(): Long = setSize.get()
def checkMutable(): Unit = {
if(!mutable)
throw new KafkaException("Attempt to invoke mutation on immutable message set.")
}
/**
* Append this message to the message set
*/
def append(messages: MessageSet): Unit = {
checkMutable()
var written = 0L
while(written < messages.sizeInBytes)
written += messages.writeTo(channel, 0, messages.sizeInBytes)
setSize.getAndAdd(written)
}
/**
* Commit all written data to the physical disk
*/
def flush() = {
checkMutable()
LogFlushStats.logFlushTimer.time {
channel.force(true)
}
}
/**
* Close this message set
*/
def close() = {
if(mutable)
flush()
channel.close()
}
/**
* Recover log up to the last complete entry. Truncate off any bytes from any incomplete messages written
*/
def recover(): Long = {
checkMutable()
val len = channel.size
val buffer = ByteBuffer.allocate(4)
var validUpTo: Long = 0
var next = 0L
do {
next = validateMessage(channel, validUpTo, len, buffer)
if(next >= 0)
validUpTo = next
} while(next >= 0)
truncateTo(validUpTo)
needRecover.set(false)
len - validUpTo
}
def truncateTo(targetSize: Long) = {
if(targetSize > sizeInBytes())
throw new KafkaException("Attempt to truncate log segment to %d bytes failed since the current ".format(targetSize) +
" size of this log segment is only %d bytes".format(sizeInBytes()))
channel.truncate(targetSize)
setSize.set(targetSize)
/* This should not be necessary, but fixes bug 6191269 on some OSs. */
channel.position(targetSize)
}
/**
* Read, validate, and discard a single message, returning the next valid offset, and
* the message being validated
*/
private def validateMessage(channel: FileChannel, start: Long, len: Long, buffer: ByteBuffer): Long = {
buffer.rewind()
var read = channel.read(buffer, start)
if(read < 4)
return -1
// check that we have sufficient bytes left in the file
val size = buffer.getInt(0)
if (size < Message.MinHeaderSize)
return -1
val next = start + 4 + size
if(next > len)
return -1
// read the message
val messageBuffer = ByteBuffer.allocate(size)
var curr = start + 4
while(messageBuffer.hasRemaining) {
read = channel.read(messageBuffer, curr)
if(read < 0)
throw new KafkaException("File size changed during recovery!")
else
curr += read
}
messageBuffer.rewind()
val message = new Message(messageBuffer)
if(!message.isValid)
return -1
else
next
}
}
object LogFlushStats extends KafkaMetricsGroup {
val logFlushTimer = new KafkaTimer(newTimer("LogFlushRateAndTimeMs", TimeUnit.MILLISECONDS, TimeUnit.SECONDS))
}

255
core/src/main/scala/kafka/message/Message.scala
View File

@ -18,145 +18,214 @@
package kafka.message
import java.nio._
import scala.math._
import kafka.utils._
import kafka.common.UnknownMagicByteException
/**
* Message byte offsets
* Constants related to messages
*/
object Message {
val MagicVersion: Byte = 1
val CurrentMagicValue: Byte = 1
val MagicOffset = 0
/**
* The current offset and size for all the fixed-length fields
*/
val CrcOffset = 0
val CrcLength = 4
val MagicOffset = CrcOffset + CrcLength
val MagicLength = 1
val AttributeOffset = MagicOffset + MagicLength
val AttributeLength = 1
val AttributesOffset = MagicOffset + MagicLength
val AttributesLength = 1
val KeySizeOffset = AttributesOffset + AttributesLength
val KeySizeLength = 4
val KeyOffset = KeySizeOffset + KeySizeLength
val MessageOverhead = KeyOffset
/**
* The minimum valid size for the message header
*/
val MinHeaderSize = CrcLength + MagicLength + AttributesLength + KeySizeLength
/**
* The current "magic" value
*/
val CurrentMagicValue: Byte = 2
/**
* Specifies the mask for the compression code. 2 bits to hold the compression codec.
* 0 is reserved to indicate no compression
*/
val CompressionCodeMask: Int = 0x03 //
val NoCompression:Int = 0
val CompressionCodeMask: Int = 0x03
/**
* Computes the CRC value based on the magic byte
* @param magic Specifies the magic byte value. The only value allowed currently is 1.
* Compression code for uncompressed messages
*/
def crcOffset(magic: Byte): Int = magic match {
case MagicVersion => AttributeOffset + AttributeLength
case _ => throw new UnknownMagicByteException("Magic byte value of %d is unknown".format(magic))
}
val CrcLength = 4
val NoCompression: Int = 0
/**
* Computes the offset to the message payload based on the magic byte
* @param magic Specifies the magic byte value. The only value allowed currently is 1.
*/
def payloadOffset(magic: Byte): Int = crcOffset(magic) + CrcLength
/**
* Computes the size of the message header based on the magic byte
* @param magic Specifies the magic byte value. The only value allowed currently is 1.
*/
def headerSize(magic: Byte): Int = payloadOffset(magic)
/**
* Size of the header for magic byte 1. This is the minimum size of any message header.
*/
val MinHeaderSize = headerSize(1);
}
/**
* A message. The format of an N byte message is the following:
*
* 1. 1 byte "magic" identifier to allow format changes, whose value is 1 currently
*
* 2. 1 byte "attributes" identifier to allow annotations on the message independent of the version (e.g. compression enabled, type of codec used)
*
* 3. 4 byte CRC32 of the payload
*
* 4. N - 6 byte payload
* 1. 4 byte CRC32 of the message
* 2. 1 byte "magic" identifier to allow format changes, value is 2 currently
* 3. 1 byte "attributes" identifier to allow annotations on the message independent of the version (e.g. compression enabled, type of codec used)
* 4. 4 byte key length, containing length K
* 5. K byte key
* 6. (N - K - 10) byte payload
*
* Default constructor wraps an existing ByteBuffer with the Message object with no change to the contents.
*/
class Message(val buffer: ByteBuffer) {
import kafka.message.Message._
private def this(checksum: Long, bytes: Array[Byte], offset: Int, size: Int, compressionCodec: CompressionCodec) = {
this(ByteBuffer.allocate(Message.headerSize(Message.CurrentMagicValue) + size))
buffer.put(CurrentMagicValue)
var attributes:Byte = 0
if (compressionCodec.codec > 0) {
attributes = (attributes | (Message.CompressionCodeMask & compressionCodec.codec)).toByte
}
buffer.put(attributes)
Utils.putUnsignedInt(buffer, checksum)
buffer.put(bytes, offset, size)
buffer.rewind()
}
def this(checksum:Long, bytes:Array[Byte]) = this(checksum, bytes, 0, bytes.length, NoCompressionCodec)
def this(bytes: Array[Byte], offset: Int, size: Int, compressionCodec: CompressionCodec) = {
//Note: we're not crc-ing the attributes header, so we're susceptible to bit-flipping there
this(Utils.crc32(bytes, offset, size), bytes, offset, size, compressionCodec)
}
def this(bytes: Array[Byte], compressionCodec: CompressionCodec) = this(bytes, 0, bytes.length, compressionCodec)
def this(bytes: Array[Byte], offset: Int, size: Int) = this(bytes, offset, size, NoCompressionCodec)
def this(bytes: Array[Byte]) = this(bytes, 0, bytes.length, NoCompressionCodec)
/**
* A constructor to create a Message
* @param bytes The payload of the message
* @param compressionCodec The compression codec used on the contents of the message (if any)
* @param key The key of the message (null, if none)
* @param payloadOffset The offset into the payload array used to extract payload
* @param payloadSize The size of the payload to use
*/
def this(bytes: Array[Byte],
key: Array[Byte],
codec: CompressionCodec,
payloadOffset: Int,
payloadSize: Int) = {
this(ByteBuffer.allocate(Message.CrcLength +
Message.MagicLength +
Message.AttributesLength +
Message.KeySizeLength +
(if(key == null) 0 else key.length) +
(if(payloadSize >= 0) payloadSize else bytes.length - payloadOffset)))
// skip crc, we will fill that in at the end
buffer.put(MagicOffset, CurrentMagicValue)
var attributes:Byte = 0
if (codec.codec > 0)
attributes = (attributes | (CompressionCodeMask & codec.codec)).toByte
buffer.put(AttributesOffset, attributes)
if(key == null) {
buffer.putInt(KeySizeOffset, -1)
buffer.position(KeyOffset)
} else {
buffer.putInt(KeySizeOffset, key.length)
buffer.position(KeyOffset)
buffer.put(key, 0, key.length)
}
buffer.put(bytes, payloadOffset, if(payloadSize >= 0) payloadSize else bytes.length - payloadOffset)
buffer.rewind()
// now compute the checksum and fill it in
Utils.putUnsignedInt(buffer, CrcOffset, computeChecksum)
}
def this(bytes: Array[Byte], key: Array[Byte], codec: CompressionCodec) =
this(bytes = bytes, key = key, codec = codec, payloadOffset = 0, payloadSize = -1)
def this(bytes: Array[Byte], codec: CompressionCodec) =
this(bytes = bytes, key = null, codec = codec)
def this(bytes: Array[Byte], key: Array[Byte]) =
this(bytes = bytes, key = key, codec = NoCompressionCodec)
def this(bytes: Array[Byte]) =
this(bytes = bytes, key = null, codec = NoCompressionCodec)
/**
* Compute the checksum of the message from the message contents
*/
def computeChecksum(): Long =
Utils.crc32(buffer.array, buffer.arrayOffset + MagicOffset, buffer.limit - MagicOffset)
/**
* Retrieve the previously computed CRC for this message
*/
def checksum: Long = Utils.getUnsignedInt(buffer, CrcOffset)
/**
* Returns true if the crc stored with the message matches the crc computed off the message contents
*/
def isValid: Boolean = checksum == computeChecksum
/**
* Throw an InvalidMessageException if isValid is false for this message
*/
def ensureValid() {
if(!isValid)
throw new InvalidMessageException("Message is corrupt (stored crc = " + checksum + ", computed crc = " + computeChecksum() + ")")
}
/**
* The complete serialized size of this message in bytes (including crc, header attributes, etc)
*/
def size: Int = buffer.limit
def payloadSize: Int = size - headerSize(magic)
/**
* The length of the key in bytes
*/
def keySize: Int = buffer.getInt(Message.KeySizeOffset)
/**
* Does the message have a key?
*/
def hasKey: Boolean = keySize >= 0
/**
* The length of the message value in bytes
*/
def payloadSize: Int = size - KeyOffset - max(0, keySize)
/**
* The magic version of this message
*/
def magic: Byte = buffer.get(MagicOffset)
def attributes: Byte = buffer.get(AttributeOffset)
/**
* The attributes stored with this message
*/
def attributes: Byte = buffer.get(AttributesOffset)
def compressionCodec:CompressionCodec = {
magic match {
case 0 => NoCompressionCodec
case 1 => CompressionCodec.getCompressionCodec(buffer.get(AttributeOffset) & CompressionCodeMask)
case _ => throw new RuntimeException("Invalid magic byte " + magic)
}
}
def checksum: Long = Utils.getUnsignedInt(buffer, crcOffset(magic))
/**
* The compression codec used with this message
*/
def compressionCodec: CompressionCodec =
CompressionCodec.getCompressionCodec(buffer.get(AttributesOffset) & CompressionCodeMask)
/**
* A ByteBuffer containing the content of the message
*/
def payload: ByteBuffer = {
var payload = buffer.duplicate
payload.position(headerSize(magic))
payload.position(KeyOffset + max(keySize, 0))
payload = payload.slice()
payload.limit(payloadSize)
payload.rewind()
payload
}
def isValid: Boolean =
checksum == Utils.crc32(buffer.array, buffer.position + buffer.arrayOffset + payloadOffset(magic), payloadSize)
def serializedSize: Int = 4 /* int size*/ + buffer.limit
def serializeTo(serBuffer:ByteBuffer) = {
serBuffer.putInt(buffer.limit)
serBuffer.put(buffer.duplicate)
/**
* A ByteBuffer containing the message key
*/
def key: ByteBuffer = {
val s = keySize
if(s < 0) {
null
} else {
var key = buffer.duplicate
key.position(KeyOffset)
key = key.slice()
key.limit(s)
key.rewind()
key
}
}
override def toString(): String =
"message(magic = %d, attributes = %d, crc = %d, payload = %s)".format(magic, attributes, checksum, payload)
"Message(magic = %d, attributes = %d, crc = %d, key = %s, payload = %s)".format(magic, attributes, checksum, key, payload)
override def equals(any: Any): Boolean = {
any match {
case that: Message => size == that.size && attributes == that.attributes && checksum == that.checksum &&
payload == that.payload && magic == that.magic
case that: Message => this.buffer.equals(that.buffer)
case _ => false
}
}

8
core/src/main/scala/kafka/message/MessageAndOffset.scala
View File

@ -18,5 +18,11 @@
package kafka.message
case class MessageAndOffset(message: Message, offset: Long)
case class MessageAndOffset(message: Message, offset: Long) {
/**
* Compute the offset of the next message in the log
*/
def nextOffset: Long = offset + 1
}

54
core/src/main/scala/kafka/message/MessageSet.scala
View File

@ -24,9 +24,11 @@ import java.nio.channels._
* Message set helper functions
*/
object MessageSet {
val LogOverhead = 4
val Empty: MessageSet = new ByteBufferMessageSet(ByteBuffer.allocate(0))
val MessageSizeLength = 4
val OffsetLength = 8
val LogOverhead = MessageSizeLength + OffsetLength
val Empty = new ByteBufferMessageSet(ByteBuffer.allocate(0))
/**
* The size of a message set containing the given messages
@ -52,37 +54,15 @@ object MessageSet {
*/
def entrySize(message: Message): Int = LogOverhead + message.size
def createByteBuffer(compressionCodec: CompressionCodec, messages: Message*): ByteBuffer =
compressionCodec match {
case NoCompressionCodec =>
val buffer = ByteBuffer.allocate(MessageSet.messageSetSize(messages))
for (message <- messages) {
message.serializeTo(buffer)
}
buffer.rewind
buffer
case _ =>
messages.size match {
case 0 =>
val buffer = ByteBuffer.allocate(MessageSet.messageSetSize(messages))
buffer.rewind
buffer
case _ =>
val message = CompressionUtils.compress(messages, compressionCodec)
val buffer = ByteBuffer.allocate(message.serializedSize)
message.serializeTo(buffer)
buffer.rewind
buffer
}
}
}
/**
* A set of messages. A message set has a fixed serialized form, though the container
* for the bytes could be either in-memory or on disk. A The format of each message is
* A set of messages with offsets. A message set has a fixed serialized form, though the container
* for the bytes could be either in-memory or on disk. The format of each message is
* as follows:
* 8 byte message offset number
* 4 byte size containing an integer N
* N message bytes as described in the message class
* N message bytes as described in the Message class
*/
abstract class MessageSet extends Iterable[MessageAndOffset] {
@ -92,7 +72,7 @@ abstract class MessageSet extends Iterable[MessageAndOffset] {
def writeTo(channel: GatheringByteChannel, offset: Long, maxSize: Long): Long
/**
* Provides an iterator over the messages in this set
* Provides an iterator over the message/offset pairs in this set
*/
def iterator: Iterator[MessageAndOffset]
@ -110,5 +90,19 @@ abstract class MessageSet extends Iterable[MessageAndOffset] {
if(!messageAndOffset.message.isValid)
throw new InvalidMessageException
}
/**
* Print this message set's contents
*/
override def toString: String = {
val builder = new StringBuilder()
builder.append(getClass.getSimpleName + "(")
for(message <- this) {
builder.append(message)
builder.append(", ")
}
builder.append(")")
builder.toString
}
}

3
core/src/main/scala/kafka/producer/ConsoleProducer.scala
View File

@ -88,7 +88,8 @@ object ConsoleProducer {
val props = new Properties()
props.put("broker.list", brokerList)
props.put("compression.codec", DefaultCompressionCodec.codec.toString)
val codec = if(compress) DefaultCompressionCodec.codec else NoCompressionCodec.codec
props.put("compression.codec", codec.toString)
props.put("producer.type", if(sync) "sync" else "async")
if(options.has(batchSizeOpt))
props.put("batch.size", batchSize.toString)

17
core/src/main/scala/kafka/server/AbstractFetcherThread.scala
View File

@ -22,6 +22,7 @@ import kafka.consumer.SimpleConsumer
import kafka.common.{TopicAndPartition, ErrorMapping}
import collection.mutable
import kafka.message.ByteBufferMessageSet
import kafka.message.MessageAndOffset
import kafka.api.{FetchResponse, FetchResponsePartitionData, FetchRequestBuilder}
import kafka.metrics.KafkaMetricsGroup
import com.yammer.metrics.core.Gauge
@ -36,12 +37,13 @@ import java.util.concurrent.TimeUnit
abstract class AbstractFetcherThread(name: String, sourceBroker: Broker, socketTimeout: Int, socketBufferSize: Int,
fetchSize: Int, fetcherBrokerId: Int = -1, maxWait: Int = 0, minBytes: Int = 1)
extends ShutdownableThread(name) {
private val fetchMap = new mutable.HashMap[TopicAndPartition, Long] // a (topic, partition) -> offset map
private val fetchMapLock = new Object
val simpleConsumer = new SimpleConsumer(sourceBroker.host, sourceBroker.port, socketTimeout, socketBufferSize)
val fetcherMetrics = FetcherStat.getFetcherStat(name + "-" + sourceBroker.id)
// callbacks to be defined in subclass
/* callbacks to be defined in subclass */
// process fetched data
def processPartitionData(topic: String, fetchOffset: Long, partitionData: FetchResponsePartitionData)
@ -100,12 +102,17 @@ abstract class AbstractFetcherThread(name: String, sourceBroker: Broker, socket
if (currentOffset.isDefined) {
partitionData.error match {
case ErrorMapping.NoError =>
processPartitionData(topic, currentOffset.get, partitionData)
val validBytes = partitionData.messages.asInstanceOf[ByteBufferMessageSet].validBytes
val newOffset = currentOffset.get + partitionData.messages.asInstanceOf[ByteBufferMessageSet].validBytes
val messages = partitionData.messages.asInstanceOf[ByteBufferMessageSet]
val validBytes = messages.validBytes
val newOffset = messages.lastOption match {
case Some(m: MessageAndOffset) => m.nextOffset
case None => currentOffset.get
}
fetchMap.put(topicAndPartition, newOffset)
FetcherLagMetrics.getFetcherLagMetrics(topic, partitionId).lag = partitionData.hw - newOffset
fetcherMetrics.byteRate.mark(validBytes)
// Once we hand off the partition data to the subclass, we can't mess with it any more in this thread
processPartitionData(topic, currentOffset.get, partitionData)
case ErrorMapping.OffsetOutOfRangeCode =>
val newOffset = handleOffsetOutOfRange(topic, partitionId)
fetchMap.put(topicAndPartition, newOffset)
@ -122,7 +129,7 @@ abstract class AbstractFetcherThread(name: String, sourceBroker: Broker, socket
}
}
if (partitionsWithError.size > 0) {
if(partitionsWithError.size > 0) {
debug("handling partitions with error for %s".format(partitionsWithError))
handlePartitionsWithErrors(partitionsWithError)
}

203
core/src/main/scala/kafka/server/KafkaApis.scala
View File

@ -29,6 +29,7 @@ import mutable.HashMap
import scala.math._
import kafka.network.RequestChannel.Response
import java.util.concurrent.TimeUnit
import java.util.concurrent.atomic._
import kafka.metrics.KafkaMetricsGroup
import org.I0Itec.zkclient.ZkClient
import kafka.common._
@ -98,7 +99,7 @@ class KafkaApis(val requestChannel: RequestChannel,
*/
def maybeUnblockDelayedFetchRequests(topic: String, partitionData: ProducerRequestPartitionData) {
val partition = partitionData.partition
val satisfied = fetchRequestPurgatory.update(RequestKey(topic, partition), null)
val satisfied = fetchRequestPurgatory.update(RequestKey(topic, partition), partitionData)
trace("Producer request to (%s-%d) unblocked %d fetch requests.".format(topic, partition, satisfied.size))
// send any newly unblocked responses
@ -119,26 +120,30 @@ class KafkaApis(val requestChannel: RequestChannel,
requestLogger.trace("Handling producer request " + request.toString)
trace("Handling producer request " + request.toString)
val localProduceResponse = produceToLocalLog(produceRequest)
val localProduceResults = appendToLocalLog(produceRequest.data)
debug("Produce to local log in %d ms".format(SystemTime.milliseconds - sTime))
val numPartitionsInError = localProduceResponse.status.count(_._2.error != ErrorMapping.NoError)
val numPartitionsInError = localProduceResults.count(_.error.isDefined)
produceRequest.data.foreach(partitionAndData =>
maybeUnblockDelayedFetchRequests(partitionAndData._1.topic, partitionAndData._2))
if (produceRequest.requiredAcks == 0 ||
produceRequest.requiredAcks == 1 ||
produceRequest.numPartitions <= 0 ||
numPartitionsInError == produceRequest.numPartitions)
requestChannel.sendResponse(new RequestChannel.Response(request, new BoundedByteBufferSend(localProduceResponse)))
else {
numPartitionsInError == produceRequest.numPartitions) {
val statuses = localProduceResults.map(r => r.key -> ProducerResponseStatus(r.errorCode, r.start)).toMap
val response = ProducerResponse(produceRequest.versionId, produceRequest.correlationId, statuses)
requestChannel.sendResponse(new RequestChannel.Response(request, new BoundedByteBufferSend(response)))
} else {
// create a list of (topic, partition) pairs to use as keys for this delayed request
val producerRequestKeys = produceRequest.data.keys.map(
topicAndPartition => new RequestKey(topicAndPartition)).toSeq
val delayedProduce = new DelayedProduce(
producerRequestKeys, request, localProduceResponse,
produceRequest, produceRequest.ackTimeoutMs.toLong)
val statuses = localProduceResults.map(r => r.key -> ProducerResponseStatus(r.errorCode, r.end + 1)).toMap
val delayedProduce = new DelayedProduce(producerRequestKeys,
request,
statuses,
produceRequest,
produceRequest.ackTimeoutMs.toLong)
producerRequestPurgatory.watch(delayedProduce)
/*
@ -155,46 +160,48 @@ class KafkaApis(val requestChannel: RequestChannel,
satisfiedProduceRequests.foreach(_.respond())
}
}
case class ProduceResult(key: TopicAndPartition, start: Long, end: Long, error: Option[Throwable] = None) {
def this(key: TopicAndPartition, throwable: Throwable) =
this(key, -1L, -1L, Some(throwable))
def errorCode = error match {
case None => ErrorMapping.NoError
case Some(error) => ErrorMapping.codeFor(error.getClass.asInstanceOf[Class[Throwable]])
}
}
/**
* Helper method for handling a parsed producer request
*/
private def produceToLocalLog(request: ProducerRequest): ProducerResponse = {
trace("Produce [%s] to local log ".format(request.toString))
val localErrorsAndOffsets = request.data.map (topicAndPartitionData => {
val (topic, partitionData) = (topicAndPartitionData._1.topic, topicAndPartitionData._2)
BrokerTopicStat.getBrokerTopicStat(topic).bytesInRate.mark(partitionData.messages.sizeInBytes)
private def appendToLocalLog(messages: Map[TopicAndPartition, ProducerRequestPartitionData]): Iterable[ProduceResult] = {
trace("Append [%s] to local log ".format(messages.toString))
messages.map (data => {
val (key, partitionData) = data
BrokerTopicStat.getBrokerTopicStat(key.topic).bytesInRate.mark(partitionData.messages.sizeInBytes)
BrokerTopicStat.getBrokerAllTopicStat.bytesInRate.mark(partitionData.messages.sizeInBytes)
try {
val localReplica = replicaManager.getLeaderReplicaIfLocal(topic, partitionData.partition)
val localReplica = replicaManager.getLeaderReplicaIfLocal(key.topic, key.partition)
val log = localReplica.log.get
log.append(partitionData.messages.asInstanceOf[ByteBufferMessageSet])
val (start, end) = log.append(partitionData.messages.asInstanceOf[ByteBufferMessageSet])
// we may need to increment high watermark since ISR could be down to 1
localReplica.partition.maybeIncrementLeaderHW(localReplica)
val responseStatus = ProducerResponseStatus(ErrorMapping.NoError, log.logEndOffset)
trace("%d bytes written to logs, nextAppendOffset = %d"
.format(partitionData.messages.sizeInBytes, responseStatus.nextOffset))
(TopicAndPartition(topic, partitionData.partition), responseStatus)
trace("%d bytes written to log %s-%d beginning at offset %d and ending at offset %d"
.format(partitionData.messages.sizeInBytes, key.topic, key.partition, start, end))
ProduceResult(key, start, end)
} catch {
case e: Throwable =>
BrokerTopicStat.getBrokerTopicStat(topic).failedProduceRequestRate.mark()
case e: KafkaStorageException =>
fatal("Halting due to unrecoverable I/O error while handling produce request: ", e)
Runtime.getRuntime.halt(1)
null
case e =>
BrokerTopicStat.getBrokerTopicStat(key.topic).failedProduceRequestRate.mark()
BrokerTopicStat.getBrokerAllTopicStat.failedProduceRequestRate.mark()
error("Error processing ProducerRequest on %s:%d".format(topic, partitionData.partition), e)
e match {
case _: KafkaStorageException =>
fatal("Halting due to unrecoverable I/O error while handling producer request", e)
Runtime.getRuntime.halt(1)
case _ =>
}
val (errorCode, offset) = (ErrorMapping.codeFor(e.getClass.asInstanceOf[Class[Throwable]]), -1L)
(TopicAndPartition(topic, partitionData.partition), ProducerResponseStatus(errorCode, offset))
}
}
)
ProducerResponse(request.versionId, request.correlationId, localErrorsAndOffsets)
error("Error processing ProducerRequest on %s:%d".format(key.topic, key.partition), e)
new ProduceResult(key, e)
}
})
}
/**
@ -207,7 +214,7 @@ class KafkaApis(val requestChannel: RequestChannel,
trace("Handling fetch request " + fetchRequest.toString)
if(fetchRequest.isFromFollower) {
maybeUpdatePartitionHW(fetchRequest)
maybeUpdatePartitionHw(fetchRequest)
// after updating HW, some delayed produce requests may be unblocked
var satisfiedProduceRequests = new mutable.ArrayBuffer[DelayedProduce]
fetchRequest.requestInfo.foreach {
@ -220,61 +227,24 @@ class KafkaApis(val requestChannel: RequestChannel,
satisfiedProduceRequests.foreach(_.respond())
}
// if there are enough bytes available right now we can answer the request, otherwise we have to punt
val availableBytes = availableFetchBytes(fetchRequest)
val dataRead = readMessageSets(fetchRequest)
val bytesReadable = dataRead.values.map(_.messages.sizeInBytes).sum
if(fetchRequest.maxWait <= 0 ||
availableBytes >= fetchRequest.minBytes ||
bytesReadable >= fetchRequest.minBytes ||
fetchRequest.numPartitions <= 0) {
val topicData = readMessageSets(fetchRequest)
debug("Returning fetch response %s for fetch request with correlation id %d".format(
topicData.values.map(_.error).mkString(","), fetchRequest.correlationId))
val response = FetchResponse(FetchRequest.CurrentVersion, fetchRequest.correlationId, topicData)
debug("Returning fetch response %s for fetch request with correlation id %d".format(dataRead.values.map(_.error).mkString(","), fetchRequest.correlationId))
val response = new FetchResponse(FetchRequest.CurrentVersion, fetchRequest.correlationId, dataRead)
requestChannel.sendResponse(new RequestChannel.Response(request, new FetchResponseSend(response)))
} else {
debug("Putting fetch request into purgatory")
// create a list of (topic, partition) pairs to use as keys for this delayed request
val delayedFetchKeys = fetchRequest.requestInfo.keys.toSeq.map(new RequestKey(_))
val delayedFetch = new DelayedFetch(delayedFetchKeys, request, fetchRequest, fetchRequest.maxWait)
val delayedFetch = new DelayedFetch(delayedFetchKeys, request, fetchRequest, fetchRequest.maxWait, bytesReadable)
fetchRequestPurgatory.watch(delayedFetch)
}
}
/**
* Calculate the number of available bytes for the given fetch request
*/
private def availableFetchBytes(fetchRequest: FetchRequest): Long = {
val totalBytes = fetchRequest.requestInfo.foldLeft(0L)((folded, curr) => {
folded +
{
val (topic, partition) = (curr._1.topic, curr._1.partition)
val (offset, fetchSize) = (curr._2.offset, curr._2.fetchSize)
debug("Fetching log for topic %s partition %d".format(topic, partition))
try {
val leader = replicaManager.getLeaderReplicaIfLocal(topic, partition)
val end = if (!fetchRequest.isFromFollower) {
leader.highWatermark
} else {
leader.logEndOffset
}
val available = max(0, end - offset)
math.min(fetchSize, available)
} catch {
case e: UnknownTopicOrPartitionException =>
info("Invalid partition %d in fetch request from client %s."
.format(partition, fetchRequest.clientId))
0
case e =>
warn("Error determining available fetch bytes for topic %s partition %s on broker %s for client %s"
.format(topic, partition, brokerId, fetchRequest.clientId), e)
0
}
}
})
trace(totalBytes + " available bytes for fetch request.")
totalBytes
}
private def maybeUpdatePartitionHW(fetchRequest: FetchRequest) {
private def maybeUpdatePartitionHw(fetchRequest: FetchRequest) {
debug("Maybe update partition HW due to fetch request: %s ".format(fetchRequest))
fetchRequest.requestInfo.foreach(info => {
val (topic, partition, offset) = (info._1.topic, info._1.partition, info._2.offset)
@ -290,21 +260,20 @@ class KafkaApis(val requestChannel: RequestChannel,
val isFetchFromFollower = fetchRequest.isFromFollower
fetchRequest.requestInfo.map {
case (TopicAndPartition(topic, partition), PartitionFetchInfo(offset, fetchSize)) =>
val partitionData = try {
val (messages, highWatermark) = readMessageSet(topic, partition, offset, fetchSize, isFetchFromFollower)
BrokerTopicStat.getBrokerTopicStat(topic).bytesOutRate.mark(messages.sizeInBytes)
BrokerTopicStat.getBrokerAllTopicStat.bytesOutRate.mark(messages.sizeInBytes)
if (!isFetchFromFollower) {
new FetchResponsePartitionData(partition, ErrorMapping.NoError, offset, highWatermark, messages)
} else {
debug("Leader %d for topic %s partition %d received fetch request from follower %d"
val partitionData =
try {
val (messages, highWatermark) = readMessageSet(topic, partition, offset, fetchSize, isFetchFromFollower)
BrokerTopicStat.getBrokerTopicStat(topic).bytesOutRate.mark(messages.sizeInBytes)
BrokerTopicStat.getBrokerAllTopicStat.bytesOutRate.mark(messages.sizeInBytes)
if (!isFetchFromFollower) {
new FetchResponsePartitionData(partition, ErrorMapping.NoError, offset, highWatermark, messages)
} else {
debug("Leader %d for topic %s partition %d received fetch request from follower %d"
.format(brokerId, topic, partition, fetchRequest.replicaId))
debug("Leader %d returning %d messages for topic %s partition %d to follower %d"
.format(brokerId, messages.sizeInBytes, topic, partition, fetchRequest.replicaId))
new FetchResponsePartitionData(partition, ErrorMapping.NoError, offset, highWatermark, messages)
}
}
catch {
} catch {
case t: Throwable =>
BrokerTopicStat.getBrokerTopicStat(topic).failedFetchRequestRate.mark()
BrokerTopicStat.getBrokerAllTopicStat.failedFetchRequestRate.mark()
@ -319,19 +288,20 @@ class KafkaApis(val requestChannel: RequestChannel,
/**
* Read from a single topic/partition at the given offset upto maxSize bytes
*/
private def readMessageSet(topic: String, partition: Int, offset: Long,
maxSize: Int, fromFollower: Boolean): (MessageSet, Long) = {
private def readMessageSet(topic: String,
partition: Int,
offset: Long,
maxSize: Int,
fromFollower: Boolean): (MessageSet, Long) = {
// check if the current broker is the leader for the partitions
val leader = replicaManager.getLeaderReplicaIfLocal(topic, partition)
trace("Fetching log segment for topic, partition, offset, size = " + (topic, partition, offset, maxSize))
val actualSize = if (!fromFollower) {
min(leader.highWatermark - offset, maxSize).toInt
} else {
maxSize
}
val messages = leader.log match {
case Some(log) =>
log.read(offset, actualSize)
if(fromFollower)
log.read(startOffset = offset, maxLength = maxSize, maxOffset = None)
else
log.read(startOffset = offset, maxLength = maxSize, maxOffset = Some(leader.highWatermark))
case None =>
error("Leader for topic %s partition %d on broker %d does not have a local log".format(topic, partition, brokerId))
MessageSet.Empty
@ -449,21 +419,24 @@ class KafkaApis(val requestChannel: RequestChannel,
/**
* A delayed fetch request
*/
class DelayedFetch(keys: Seq[RequestKey], request: RequestChannel.Request, val fetch: FetchRequest, delayMs: Long)
extends DelayedRequest(keys, request, delayMs)
class DelayedFetch(keys: Seq[RequestKey], request: RequestChannel.Request, val fetch: FetchRequest, delayMs: Long, initialSize: Long)
extends DelayedRequest(keys, request, delayMs) {
val bytesAccumulated = new AtomicLong(initialSize)
}
/**
* A holding pen for fetch requests waiting to be satisfied
*/
class FetchRequestPurgatory(requestChannel: RequestChannel) extends RequestPurgatory[DelayedFetch, Null](brokerId) {
class FetchRequestPurgatory(requestChannel: RequestChannel) extends RequestPurgatory[DelayedFetch, ProducerRequestPartitionData](brokerId) {
this.logIdent = "[FetchRequestPurgatory-%d] ".format(brokerId)
/**
* A fetch request is satisfied when it has accumulated enough data to meet the min_bytes field
*/
def checkSatisfied(n: Null, delayedFetch: DelayedFetch): Boolean =
availableFetchBytes(delayedFetch.fetch) >= delayedFetch.fetch.minBytes
def checkSatisfied(partitionData: ProducerRequestPartitionData, delayedFetch: DelayedFetch): Boolean = {
val accumulatedSize = delayedFetch.bytesAccumulated.addAndGet(partitionData.messages.sizeInBytes)
accumulatedSize >= delayedFetch.fetch.minBytes
}
/**
* When a request expires just answer it with whatever data is present
@ -479,12 +452,11 @@ class KafkaApis(val requestChannel: RequestChannel,
class DelayedProduce(keys: Seq[RequestKey],
request: RequestChannel.Request,
localProduceResponse: ProducerResponse,
initialErrorsAndOffsets: Map[TopicAndPartition, ProducerResponseStatus],
val produce: ProducerRequest,
delayMs: Long)
extends DelayedRequest(keys, request, delayMs) with Logging {
private val initialErrorsAndOffsets = localProduceResponse.status
/**
* Map of (topic, partition) -> partition status
* The values in this map don't need to be synchronized since updates to the
@ -498,9 +470,9 @@ class KafkaApis(val requestChannel: RequestChannel,
val (acksPending, error, nextOffset) =
if (producerResponseStatus.error == ErrorMapping.NoError) {
// Timeout error state will be cleared when requiredAcks are received
(true, ErrorMapping.RequestTimedOutCode, producerResponseStatus.nextOffset)
(true, ErrorMapping.RequestTimedOutCode, producerResponseStatus.offset)
}
else (false, producerResponseStatus.error, producerResponseStatus.nextOffset)
else (false, producerResponseStatus.error, producerResponseStatus.offset)
val initialStatus = PartitionStatus(acksPending, error, nextOffset)
trace("Initial partition status for %s = %s".format(requestKey.keyLabel, initialStatus))
@ -579,8 +551,7 @@ class KafkaApis(val requestChannel: RequestChannel,
/**
* A holding pen for produce requests waiting to be satisfied.
*/
private [kafka] class ProducerRequestPurgatory extends RequestPurgatory[DelayedProduce, RequestKey](brokerId) {
private [kafka] class ProducerRequestPurgatory extends RequestPurgatory[DelayedProduce, RequestKey] {
this.logIdent = "[ProducerRequestPurgatory-%d] ".format(brokerId)
protected def checkSatisfied(followerFetchRequestKey: RequestKey,

64
core/src/main/scala/kafka/server/KafkaConfig.scala
View File

@ -33,25 +33,12 @@ class KafkaConfig private (val props: VerifiableProperties) extends ZKConfig(pro
}
def verify() = props.verify()
/* the port to listen and accept connections on */
val port: Int = props.getInt("port", 6667)
/* hostname of broker. If not set, will pick up from the value returned from getLocalHost. If there are multiple interfaces getLocalHost may not be what you want. */
val hostName: String = props.getString("hostname", InetAddress.getLocalHost.getHostAddress)
/*********** General Configuration ***********/
/* the broker id for this server */
val brokerId: Int = props.getIntInRange("brokerid", (0, Int.MaxValue))
/* the SO_SNDBUFF buffer of the socket sever sockets */
val socketSendBuffer: Int = props.getInt("socket.send.buffer", 100*1024)
/* the SO_RCVBUFF buffer of the socket sever sockets */
val socketReceiveBuffer: Int = props.getInt("socket.receive.buffer", 100*1024)
/* the maximum number of bytes in a socket request */
val maxSocketRequestSize: Int = props.getIntInRange("max.socket.request.bytes", 100*1024*1024, (1, Int.MaxValue))
/* the maximum size of message that the server can receive */
val maxMessageSize = props.getIntInRange("max.message.size", 1000000, (0, Int.MaxValue))
@ -63,6 +50,25 @@ class KafkaConfig private (val props: VerifiableProperties) extends ZKConfig(pro
/* the number of queued requests allowed before blocking the network threads */
val numQueuedRequests = props.getIntInRange("max.queued.requests", 500, (1, Int.MaxValue))
/*********** Socket Server Configuration ***********/
/* the port to listen and accept connections on */
val port: Int = props.getInt("port", 6667)
/* hostname of broker. If not set, will pick up from the value returned from getLocalHost. If there are multiple interfaces getLocalHost may not be what you want. */
val hostName: String = props.getString("hostname", InetAddress.getLocalHost.getHostAddress)
/* the SO_SNDBUFF buffer of the socket sever sockets */
val socketSendBuffer: Int = props.getInt("socket.send.buffer", 100*1024)
/* the SO_RCVBUFF buffer of the socket sever sockets */
val socketReceiveBuffer: Int = props.getInt("socket.receive.buffer", 100*1024)
/* the maximum number of bytes in a socket request */
val maxSocketRequestSize: Int = props.getIntInRange("max.socket.request.bytes", 100*1024*1024, (1, Int.MaxValue))
/*********** Log Configuration ***********/
/* the default number of log partitions per topic */
val numPartitions = props.getIntInRange("num.partitions", 1, (1, Int.MaxValue))
@ -96,6 +102,12 @@ class KafkaConfig private (val props: VerifiableProperties) extends ZKConfig(pro
/* the frequency in minutes that the log cleaner checks whether any log is eligible for deletion */
val logCleanupIntervalMinutes = props.getIntInRange("log.cleanup.interval.mins", 10, (1, Int.MaxValue))
/* the maximum size in bytes of the offset index */
val logIndexMaxSizeBytes = props.getIntInRange("log.index.max.size", 10*1024*1024, (4, Int.MaxValue))
/* the interval with which we add an entry to the offset index */
val logIndexIntervalBytes = props.getIntInRange("log.index.interval.bytes", 4096, (0, Int.MaxValue))
/* the number of messages accumulated on a log partition before messages are flushed to disk */
val flushInterval = props.getIntInRange("log.flush.interval", 500, (1, Int.MaxValue))
@ -112,9 +124,7 @@ class KafkaConfig private (val props: VerifiableProperties) extends ZKConfig(pro
/* enable auto creation of topic on the server */
val autoCreateTopics = props.getBoolean("auto.create.topics", true)
/**
* Following properties are relevant to Kafka replication
*/
/*********** Replication configuration ***********/
/* the socket timeout for controller-to-broker channels */
val controllerSocketTimeoutMs = props.getInt("controller.socket.timeout.ms", 30000)
@ -122,7 +132,6 @@ class KafkaConfig private (val props: VerifiableProperties) extends ZKConfig(pro
/* the buffer size for controller-to-broker-channels */
val controllerMessageQueueSize= props.getInt("controller.message.queue.size", 10)
/* default replication factors for automatically created topics */
val defaultReplicationFactor = props.getInt("default.replication.factor", 1)
@ -134,25 +143,22 @@ class KafkaConfig private (val props: VerifiableProperties) extends ZKConfig(pro
val replicaMaxLagBytes = props.getLong("replica.max.lag.bytes", 4000)
/**
* Config options relevant to a follower for a replica
*/
/** the socket timeout for network requests */
/* the socket timeout for network requests */
val replicaSocketTimeoutMs = props.getInt("replica.socket.timeout.ms", ConsumerConfig.SocketTimeout)
/** the socket receive buffer for network requests */
/* the socket receive buffer for network requests */
val replicaSocketBufferSize = props.getInt("replica.socket.buffersize", ConsumerConfig.SocketBufferSize)
/** the number of byes of messages to attempt to fetch */
/* the number of byes of messages to attempt to fetch */
val replicaFetchSize = props.getInt("replica.fetch.size", ConsumerConfig.FetchSize)
/** max wait time for each fetcher request issued by follower replicas*/
/* max wait time for each fetcher request issued by follower replicas*/
val replicaMaxWaitTimeMs = props.getInt("replica.fetch.wait.time.ms", 500)
/** minimum bytes expected for each fetch response. If not enough bytes, wait up to replicaMaxWaitTimeMs */
/* minimum bytes expected for each fetch response. If not enough bytes, wait up to replicaMaxWaitTimeMs */
val replicaMinBytes = props.getInt("replica.fetch.min.bytes", 4096)
/* number of fetcher threads used to replicate messages from a source broker.
* Increasing this value can increase the degree of I/O parallelism in the follower broker. */
* Increasing this value can increase the degree of I/O parallelism in the follower broker. */
val numReplicaFetchers = props.getInt("replica.fetchers", 1)
}

8
core/src/main/scala/kafka/server/KafkaServer.scala
View File

@ -114,11 +114,13 @@ class KafkaServer(val config: KafkaConfig, time: Time = SystemTime) extends Logg
if(requestHandlerPool != null)
requestHandlerPool.shutdown()
kafkaScheduler.shutdown()
apis.close()
kafkaZookeeper.shutdown()
if(apis != null)
apis.close()
if(kafkaZookeeper != null)
kafkaZookeeper.shutdown()
if(replicaManager != null)
replicaManager.shutdown()
if (socketServer != null)
if(socketServer != null)
socketServer.shutdown()
if(logManager != null)
logManager.shutdown()

4
core/src/main/scala/kafka/server/ReplicaFetcherThread.scala
View File

@ -36,11 +36,11 @@ class ReplicaFetcherThread(name:String, sourceBroker: Broker, brokerConfig: Kafk
val messageSet = partitionData.messages.asInstanceOf[ByteBufferMessageSet]
if (fetchOffset != replica.logEndOffset)
throw new RuntimeException("offset mismatch: fetchOffset=%d, logEndOffset=%d".format(fetchOffset, replica.logEndOffset))
throw new RuntimeException("Offset mismatch: fetched offset = %d, log end offset = %d.".format(fetchOffset, replica.logEndOffset))
trace("Follower %d has replica log end offset %d. Received %d messages and leader hw %d".format(replica.brokerId,
replica.logEndOffset, messageSet.sizeInBytes, partitionData.hw))
replica.log.get.append(messageSet)
trace("Follower %d has replica log end offset %d after appending %d messages"
trace("Follower %d has replica log end offset %d after appending %d bytes of messages"
.format(replica.brokerId, replica.logEndOffset, messageSet.sizeInBytes))
val followerHighWatermark = replica.logEndOffset.min(partitionData.hw)
replica.highWatermark = followerHighWatermark

72
core/src/main/scala/kafka/tools/DumpLogSegments.scala
View File

@ -19,38 +19,64 @@ package kafka.tools
import java.io._
import kafka.message._
import kafka.log._
import kafka.utils._
object DumpLogSegments {
def main(args: Array[String]) {
var isNoPrint = false;
for(arg <- args)
if ("-noprint".compareToIgnoreCase(arg) == 0)
isNoPrint = true;
val print = args.contains("--print")
val files = args.filter(_ != "--print")
for(arg <- args) {
if (! ("-noprint".compareToIgnoreCase(arg) == 0) ) {
val file = new File(arg)
for(arg <- files) {
val file = new File(arg)
if(file.getName.endsWith(Log.LogFileSuffix)) {
println("Dumping " + file)
val startOffset = file.getName().split("\\.")(0).toLong
var offset = 0L
println("Starting offset: " + startOffset)
val messageSet = new FileMessageSet(file, false)
for(messageAndOffset <- messageSet) {
val msg = messageAndOffset.message
println("offset: " + (startOffset + offset) + " isvalid: " + msg.isValid +
" payloadsize: " + msg.payloadSize + " magic: " + msg.magic + " compresscodec: " + msg.compressionCodec)
if (!isNoPrint)
println("payload:\t" + Utils.toString(messageAndOffset.message.payload, "UTF-8"))
offset = messageAndOffset.offset
}
val endOffset = startOffset + offset
println("Tail of the log is at offset: " + endOffset)
if (messageSet.sizeInBytes != endOffset)
println("Log corrupted from " + endOffset + " to " + messageSet.sizeInBytes + "!!!")
dumpLog(file, print)
} else if(file.getName.endsWith(Log.IndexFileSuffix)){
println("Dumping " + file)
dumpIndex(file)
}
}
}
/* print out the contents of the index */
def dumpIndex(file: File) {
val startOffset = file.getName().split("\\.")(0).toLong
val index = new OffsetIndex(file = file, baseOffset = startOffset, mutable = false)
for(i <- 0 until index.entries) {
val entry = index.entry(i)
// since it is a sparse file, in the event of a crash there may be many zero entries, stop if we see one
if(entry.offset <= startOffset)
return
println("offset: %d position: %d".format(entry.offset, entry.position))
}
}
/* print out the contents of the log */
def dumpLog(file: File, printContents: Boolean) {
val startOffset = file.getName().split("\\.")(0).toLong
println("Starting offset: " + startOffset)
val messageSet = new FileMessageSet(file, false)
var validBytes = 0L
for(messageAndOffset <- messageSet) {
val msg = messageAndOffset.message
validBytes += MessageSet.entrySize(msg)
print("offset: " + messageAndOffset.offset + " isvalid: " + msg.isValid +
" payloadsize: " + msg.payloadSize + " magic: " + msg.magic +
" compresscodec: " + msg.compressionCodec + " crc: " + msg.checksum)
if(msg.hasKey)
print(" keysize: " + msg.keySize)
if(printContents) {
if(msg.hasKey)
print(" key: " + Utils.toString(messageAndOffset.message.payload, "UTF-8"))
print(" payload: " + Utils.toString(messageAndOffset.message.payload, "UTF-8"))
}
println()
}
val trailingBytes = messageSet.sizeInBytes - validBytes
if(trailingBytes > 0)
println("Found %d invalid bytes at the end of %s".format(trailingBytes, file.getName))
}
}

2
core/src/main/scala/kafka/tools/SimpleConsumerShell.scala
View File

@ -108,7 +108,7 @@ object SimpleConsumerShell extends Logging {
for(messageAndOffset <- messageSet) {
if(printMessages)
info("consumed: " + Utils.toString(messageAndOffset.message.payload, "UTF-8"))
offset = messageAndOffset.offset
offset = messageAndOffset.nextOffset
if(printOffsets)
info("next offset = " + offset)
consumed += 1

4
core/src/main/scala/kafka/utils/ZkUtils.scala
View File

@ -295,11 +295,11 @@ object ZkUtils extends Logging {
def conditionalUpdatePersistentPath(client: ZkClient, path: String, data: String, expectVersion: Int): (Boolean, Int) = {
try {
val stat = client.writeData(path, data, expectVersion)
info("Conditional update the zkPath %s with expected version %d succeed and return the new version: %d".format(path, expectVersion, stat.getVersion))
debug("Conditional update to the zookeeper path %s with expected version %d succeeded and returned the new version: %d".format(path, expectVersion, stat.getVersion))
(true, stat.getVersion)
} catch {
case e: Exception =>
info("Conditional update the zkPath %s with expected version %d failed".format(path, expectVersion))
debug("Conditional update to the zookeeper path %s with expected version %d failed".format(path, expectVersion), e)
(false, -1)
}
}

2
core/src/test/scala/other/kafka/TestLogPerformance.scala
View File

@ -33,7 +33,7 @@ object TestLogPerformance {
val props = TestUtils.createBrokerConfig(0, -1)
val config = new KafkaConfig(props)
val dir = TestUtils.tempDir()
val log = new Log(dir, 50*1024*1024, config.maxMessageSize, 5000000, config.logRollHours*60*60*1000L, false, SystemTime)
val log = new Log(dir, 50*1024*1024, config.maxMessageSize, 5000000, config.logRollHours*60*60*1000L, needsRecovery = false, time = SystemTime)
val bytes = new Array[Byte](messageSize)
new java.util.Random().nextBytes(bytes)
val message = new Message(bytes)

28
core/src/test/scala/unit/kafka/network/RpcDataSerializationTest.scala → core/src/test/scala/unit/kafka/api/RequestResponseSerializationTest.scala
View File

@ -15,7 +15,7 @@
* limitations under the License.
*/
package kafka.network
package kafka.api
import org.junit._
import org.scalatest.junit.JUnitSuite
@ -28,7 +28,7 @@ import collection.mutable._
import kafka.common.{TopicAndPartition, ErrorMapping}
object RpcDataSerializationTestUtils{
object SerializationTestUtils{
private val topic1 = "test1"
private val topic2 = "test2"
private val leader1 = 0
@ -142,18 +142,18 @@ object RpcDataSerializationTestUtils{
}
}
class RpcDataSerializationTest extends JUnitSuite {
private val leaderAndISRRequest = RpcDataSerializationTestUtils.createTestLeaderAndISRRequest
private val leaderAndISRResponse = RpcDataSerializationTestUtils.createTestLeaderAndISRResponse
private val stopReplicaRequest = RpcDataSerializationTestUtils.createTestStopReplicaRequest
private val stopReplicaResponse = RpcDataSerializationTestUtils.createTestStopReplicaResponse
private val producerRequest = RpcDataSerializationTestUtils.createTestProducerRequest
private val producerResponse = RpcDataSerializationTestUtils.createTestProducerResponse
private val fetchRequest = RpcDataSerializationTestUtils.createTestFetchRequest
private val offsetRequest = RpcDataSerializationTestUtils.createTestOffsetRequest
private val offsetResponse = RpcDataSerializationTestUtils.createTestOffsetResponse
private val topicMetadataRequest = RpcDataSerializationTestUtils.createTestTopicMetadataRequest
private val topicMetadataResponse = RpcDataSerializationTestUtils.createTestTopicMetadataResponse
class RequestResponseSerializationTest extends JUnitSuite {
private val leaderAndISRRequest = SerializationTestUtils.createTestLeaderAndISRRequest
private val leaderAndISRResponse = SerializationTestUtils.createTestLeaderAndISRResponse
private val stopReplicaRequest = SerializationTestUtils.createTestStopReplicaRequest
private val stopReplicaResponse = SerializationTestUtils.createTestStopReplicaResponse
private val producerRequest = SerializationTestUtils.createTestProducerRequest
private val producerResponse = SerializationTestUtils.createTestProducerResponse
private val fetchRequest = SerializationTestUtils.createTestFetchRequest
private val offsetRequest = SerializationTestUtils.createTestOffsetRequest
private val offsetResponse = SerializationTestUtils.createTestOffsetResponse
private val topicMetadataRequest = SerializationTestUtils.createTestTopicMetadataRequest
private val topicMetadataResponse = SerializationTestUtils.createTestTopicMetadataResponse
@Test

9
core/src/test/scala/unit/kafka/consumer/ZookeeperConsumerConnectorTest.scala
View File

@ -99,8 +99,7 @@ class ZookeeperConsumerConnectorTest extends JUnit3Suite with KafkaServerTestHar
waitUntilLeaderIsElectedOrChanged(zkClient, topic, 1, 500)
// create a consumer
val consumerConfig1 = new ConsumerConfig(
TestUtils.createConsumerProperties(zkConnect, group, consumer1))
val consumerConfig1 = new ConsumerConfig(TestUtils.createConsumerProperties(zkConnect, group, consumer1))
val zkConsumerConnector1 = new ZookeeperConsumerConnector(consumerConfig1, true)
val topicMessageStreams1 = zkConsumerConnector1.createMessageStreams(Predef.Map(topic -> 1))
@ -348,7 +347,7 @@ class ZookeeperConsumerConnectorTest extends JUnit3Suite with KafkaServerTestHar
val receivedMessages1 = getMessages(nMessages, topicMessageStreams1)
assertEquals(nMessages, receivedMessages1.size)
assertEquals(sentMessages1, receivedMessages1)
assertEquals(sentMessages1.sortWith((s,t) => s.checksum < t.checksum), receivedMessages1)
}
def sendMessagesToBrokerPartition(config: KafkaConfig, topic: String, partition: Int, numMessages: Int, compression: CompressionCodec = NoCompressionCodec): List[Message] = {
@ -395,10 +394,10 @@ class ZookeeperConsumerConnectorTest extends JUnit3Suite with KafkaServerTestHar
def getMessages(nMessagesPerThread: Int, topicMessageStreams: Map[String,List[KafkaStream[Message]]]): List[Message]= {
var messages: List[Message] = Nil
for ((topic, messageStreams) <- topicMessageStreams) {
for((topic, messageStreams) <- topicMessageStreams) {
for (messageStream <- messageStreams) {
val iterator = messageStream.iterator
for (i <- 0 until nMessagesPerThread) {
for(i <- 0 until nMessagesPerThread) {
assertTrue(iterator.hasNext)
val message = iterator.next.message
messages ::= message

4
core/src/test/scala/unit/kafka/integration/FetcherTest.scala
View File

@ -15,7 +15,7 @@
* limitations under the License.
*/
package kafka.consumer
package kafka.integration
import java.util.concurrent._
import java.util.concurrent.atomic._
@ -26,7 +26,7 @@ import kafka.cluster._
import kafka.message._
import kafka.server._
import org.scalatest.junit.JUnit3Suite
import kafka.integration.KafkaServerTestHarness
import kafka.consumer._
import kafka.producer.{ProducerData, Producer}
import kafka.utils.TestUtils._
import kafka.utils.TestUtils

5
core/src/test/scala/unit/kafka/integration/LazyInitProducerTest.scala
View File

@ -103,7 +103,7 @@ class LazyInitProducerTest extends JUnit3Suite with ProducerConsumerTestHarness
// send some invalid offsets
val builder = new FetchRequestBuilder()
for( (topic, offset) <- topicOffsets )
for((topic, offset) <- topicOffsets)
builder.addFetch(topic, offset, -1, 10000)
val request = builder.build()
@ -113,8 +113,7 @@ class LazyInitProducerTest extends JUnit3Suite with ProducerConsumerTestHarness
ErrorMapping.maybeThrowException(pd.error)
fail("Expected an OffsetOutOfRangeException exception to be thrown")
} catch {
case e: OffsetOutOfRangeException =>
case e: OffsetOutOfRangeException => // this is good
}
})
}

100
core/src/test/scala/unit/kafka/integration/LogCorruptionTest.scala
View File

@ -1,100 +0,0 @@
/**
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package kafka.log
import kafka.server.KafkaConfig
import java.io.File
import java.nio.ByteBuffer
import kafka.api.FetchRequestBuilder
import kafka.common.InvalidMessageSizeException
import kafka.consumer.{ZookeeperConsumerConnector, ConsumerConfig}
import kafka.integration.{KafkaServerTestHarness, ProducerConsumerTestHarness}
import kafka.message.Message
import kafka.utils.{Utils, TestUtils}
import org.scalatest.junit.JUnit3Suite
import org.apache.log4j.{Logger, Level}
import kafka.producer.ProducerData
class LogCorruptionTest extends JUnit3Suite with ProducerConsumerTestHarness with KafkaServerTestHarness {
val port = TestUtils.choosePort
val props = TestUtils.createBrokerConfig(0, port)
val config = new KafkaConfig(props) {
override val hostName = "localhost"
}
val configs = List(config)
val topic = "test"
val partition = 0
def testMessageSizeTooLarge() {
val requestHandlerLogger = Logger.getLogger(classOf[kafka.server.KafkaRequestHandler])
requestHandlerLogger.setLevel(Level.FATAL)
// send some messages
val producerData = new ProducerData[String, Message](topic, topic, List(new Message("hello".getBytes())))
producer.send(producerData)
// corrupt the file on disk
val logFile = new File(config.logDir + File.separator + topic + "-" + partition, Log.nameFromOffset(0))
val byteBuffer = ByteBuffer.allocate(4)
byteBuffer.putInt(1000) // wrong message size
byteBuffer.rewind()
val channel = Utils.openChannel(logFile, true)
channel.write(byteBuffer)
channel.force(true)
channel.close
// test SimpleConsumer
val response = consumer.fetch(new FetchRequestBuilder().addFetch(topic, partition, 0, 10000).build())
try {
for (msg <- response.messageSet(topic, partition))
fail("shouldn't reach here in SimpleConsumer since log file is corrupted.")
fail("shouldn't reach here in SimpleConsumer since log file is corrupted.")
} catch {
case e: InvalidMessageSizeException => "This is good"
}
val response2 = consumer.fetch(new FetchRequestBuilder().addFetch(topic, partition, 0, 10000).build())
try {
for (msg <- response2.messageSet(topic, partition))
fail("shouldn't reach here in SimpleConsumer since log file is corrupted.")
fail("shouldn't reach here in SimpleConsumer since log file is corrupted.")
} catch {
case e: InvalidMessageSizeException => "This is good"
}
// test ZookeeperConsumer
val consumerConfig1 = new ConsumerConfig(
TestUtils.createConsumerProperties(zkConnect, "group1", "consumer1", 10000))
val zkConsumerConnector1 = new ZookeeperConsumerConnector(consumerConfig1)
val topicMessageStreams1 = zkConsumerConnector1.createMessageStreams(Predef.Map(topic -> 1))
try {
for ((topic, messageStreams) <- topicMessageStreams1)
for (message <- messageStreams(0))
fail("shouldn't reach here in ZookeeperConsumer since log file is corrupted.")
fail("shouldn't reach here in ZookeeperConsumer since log file is corrupted.")
} catch {
case e: InvalidMessageSizeException => "This is good"
case e: Exception => "This is not bad too !"
}
zkConsumerConnector1.shutdown
requestHandlerLogger.setLevel(Level.ERROR)
}
}

3
core/src/test/scala/unit/kafka/javaapi/message/ByteBufferMessageSetTest.scala
View File

@ -22,8 +22,9 @@ import org.junit.Test
import kafka.message.{DefaultCompressionCodec, CompressionCodec, NoCompressionCodec, Message}
class ByteBufferMessageSetTest extends kafka.javaapi.message.BaseMessageSetTestCases {
override def createMessageSet(messages: Seq[Message], compressed: CompressionCodec = NoCompressionCodec): ByteBufferMessageSet =
new ByteBufferMessageSet(new kafka.message.ByteBufferMessageSet(compressed, messages: _*))
new ByteBufferMessageSet(new kafka.message.ByteBufferMessageSet(compressed, messages: _*).buffer)
val msgSeq: Seq[Message] = Seq(new Message("hello".getBytes()), new Message("there".getBytes()))

37
core/src/test/scala/unit/kafka/message/FileMessageSetTest.scala → core/src/test/scala/unit/kafka/log/FileMessageSetTest.scala
View File

@ -15,11 +15,13 @@
* limitations under the License.
*/
package kafka.message
package kafka.log
import java.nio._
import java.util.concurrent.atomic._
import junit.framework.Assert._
import kafka.utils.TestUtils._
import kafka.message._
import org.junit.Test
class FileMessageSetTest extends BaseMessageSetTestCases {
@ -58,10 +60,6 @@ class FileMessageSetTest extends BaseMessageSetTestCases {
messageSet.channel.write(buffer)
// appending those bytes should not change the contents
checkEquals(messages.iterator, messageSet.map(m => m.message).iterator)
assertEquals("Unexpected number of bytes truncated", size.longValue, messageSet.recover())
assertEquals("File pointer should now be at the end of the file.", originalPosition, messageSet.channel.position)
// nor should recovery change the contents
checkEquals(messages.iterator, messageSet.map(m => m.message).iterator)
}
@Test
@ -76,9 +74,34 @@ class FileMessageSetTest extends BaseMessageSetTestCases {
val read = messageSet.read(0, messageSet.sizeInBytes)
checkEquals(messageSet.iterator, read.iterator)
val items = read.iterator.toList
val first = items.head
val read2 = messageSet.read(first.offset, messageSet.sizeInBytes)
val sec = items.tail.head
val read2 = messageSet.read(MessageSet.entrySize(sec.message), messageSet.sizeInBytes)
checkEquals(items.tail.iterator, read2.iterator)
}
@Test
def testSearch() {
// append a new message with a high offset
val lastMessage = new Message("test".getBytes)
messageSet.append(new ByteBufferMessageSet(NoCompressionCodec, new AtomicLong(50), lastMessage))
var physicalOffset = 0
assertEquals("Should be able to find the first message by its offset",
OffsetPosition(0L, physicalOffset),
messageSet.searchFor(0, 0))
physicalOffset += MessageSet.entrySize(messageSet.head.message)
assertEquals("Should be able to find second message when starting from 0",
OffsetPosition(1L, physicalOffset),
messageSet.searchFor(1, 0))
assertEquals("Should be able to find second message starting from its offset",
OffsetPosition(1L, physicalOffset),
messageSet.searchFor(1, physicalOffset))
physicalOffset += MessageSet.entrySize(messageSet.tail.head.message)
assertEquals("Should be able to find third message from a non-existant offset",
OffsetPosition(50L, physicalOffset),
messageSet.searchFor(3, physicalOffset))
assertEquals("Should be able to find third message by correct offset",
OffsetPosition(50L, physicalOffset),
messageSet.searchFor(50, physicalOffset))
}
}

29
core/src/test/scala/unit/kafka/log/LogManagerTest.scala
View File

@ -27,7 +27,7 @@ import kafka.admin.CreateTopicCommand
import kafka.server.KafkaConfig
import kafka.utils._
class LogManagerTest extends JUnit3Suite with ZooKeeperTestHarness {
class LogManagerTest extends JUnit3Suite {
val time: MockTime = new MockTime()
val maxRollInterval = 100
@ -35,15 +35,13 @@ class LogManagerTest extends JUnit3Suite with ZooKeeperTestHarness {
var logDir: File = null
var logManager: LogManager = null
var config:KafkaConfig = null
val zookeeperConnect = TestZKUtils.zookeeperConnect
val name = "kafka"
val veryLargeLogFlushInterval = 10000000L
val scheduler = new KafkaScheduler(2)
override def setUp() {
super.setUp()
val props = TestUtils.createBrokerConfig(0, -1)
config = new KafkaConfig(props) {
config = new KafkaConfig(TestUtils.createBrokerConfig(0, -1)) {
override val logFileSize = 1024
override val flushInterval = 100
}
@ -51,11 +49,6 @@ class LogManagerTest extends JUnit3Suite with ZooKeeperTestHarness {
logManager = new LogManager(config, scheduler, time, maxRollInterval, veryLargeLogFlushInterval, maxLogAge, false)
logManager.startup
logDir = logManager.logDir
TestUtils.createBrokersInZk(zkClient, List(config.brokerId))
// setup brokers in zookeeper as owners of partitions for this test
CreateTopicCommand.createTopic(zkClient, name, 3, 1, "0,0,0")
}
override def tearDown() {
@ -87,8 +80,8 @@ class LogManagerTest extends JUnit3Suite with ZooKeeperTestHarness {
var offset = 0L
for(i <- 0 until 1000) {
var set = TestUtils.singleMessageSet("test".getBytes())
log.append(set)
offset += set.sizeInBytes
val (start, end) = log.append(set)
offset = end
}
log.flush
@ -96,12 +89,12 @@ class LogManagerTest extends JUnit3Suite with ZooKeeperTestHarness {
// update the last modified time of all log segments
val logSegments = log.segments.view
logSegments.foreach(s => s.file.setLastModified(time.currentMs))
logSegments.foreach(s => s.messageSet.file.setLastModified(time.currentMs))
time.currentMs += maxLogAge + 3000
logManager.cleanupLogs()
assertEquals("Now there should only be only one segment.", 1, log.numberOfSegments)
assertEquals("Should get empty fetch off new log.", 0L, log.read(offset, 1024).sizeInBytes)
assertEquals("Should get empty fetch off new log.", 0L, log.read(offset+1, 1024).sizeInBytes)
try {
log.read(0, 1024)
fail("Should get exception from fetching earlier.")
@ -135,8 +128,8 @@ class LogManagerTest extends JUnit3Suite with ZooKeeperTestHarness {
// add a bunch of messages that should be larger than the retentionSize
for(i <- 0 until 1000) {
val set = TestUtils.singleMessageSet("test".getBytes())
log.append(set)
offset += set.sizeInBytes
val (start, end) = log.append(set)
offset = start
}
// flush to make sure it's written to disk
log.flush
@ -147,7 +140,7 @@ class LogManagerTest extends JUnit3Suite with ZooKeeperTestHarness {
// this cleanup shouldn't find any expired segments but should delete some to reduce size
logManager.cleanupLogs()
assertEquals("Now there should be exactly 6 segments", 6, log.numberOfSegments)
assertEquals("Should get empty fetch off new log.", 0L, log.read(offset, 1024).sizeInBytes)
assertEquals("Should get empty fetch off new log.", 0L, log.read(offset + 1, 1024).sizeInBytes)
try {
log.read(0, 1024)
fail("Should get exception from fetching earlier.")
@ -175,8 +168,8 @@ class LogManagerTest extends JUnit3Suite with ZooKeeperTestHarness {
var set = TestUtils.singleMessageSet("test".getBytes())
log.append(set)
}
println("now = " + System.currentTimeMillis + " last flush = " + log.getLastFlushedTime)
assertTrue("The last flush time has to be within defaultflushInterval of current time ",
(System.currentTimeMillis - log.getLastFlushedTime) < 100)
(System.currentTimeMillis - log.getLastFlushedTime) < 150)
}
}

8
core/src/test/scala/unit/kafka/log/LogOffsetTest.scala
View File

@ -92,7 +92,7 @@ class LogOffsetTest extends JUnit3Suite with ZooKeeperTestHarness {
log.flush()
val offsets = log.getOffsetsBefore(OffsetRequest.LatestTime, 10)
assertEquals(Seq(240L, 216L, 108L, 0L), offsets)
assertEquals(Seq(20L, 15L, 10L, 5L, 0L), offsets)
waitUntilTrue(() => isLeaderLocalOnBroker(topic, part, server), 1000)
val topicAndPartition = TopicAndPartition(topic, part)
@ -101,7 +101,7 @@ class LogOffsetTest extends JUnit3Suite with ZooKeeperTestHarness {
replicaId = 0)
val consumerOffsets =
simpleConsumer.getOffsetsBefore(offsetRequest).partitionErrorAndOffsets(topicAndPartition).offsets
assertEquals(Seq(240L, 216L, 108L, 0L), consumerOffsets)
assertEquals(Seq(20L, 15L, 10L, 5L, 0L), consumerOffsets)
// try to fetch using latest offset
val fetchResponse = simpleConsumer.fetch(
@ -157,14 +157,14 @@ class LogOffsetTest extends JUnit3Suite with ZooKeeperTestHarness {
val now = time.milliseconds
val offsets = log.getOffsetsBefore(now, 10)
assertEquals(Seq(240L, 216L, 108L, 0L), offsets)
assertEquals(Seq(20L, 15L, 10L, 5L, 0L), offsets)
waitUntilTrue(() => isLeaderLocalOnBroker(topic, part, server), 1000)
val topicAndPartition = TopicAndPartition(topic, part)
val offsetRequest = OffsetRequest(Map(topicAndPartition -> PartitionOffsetRequestInfo(now, 10)), replicaId = 0)
val consumerOffsets =
simpleConsumer.getOffsetsBefore(offsetRequest).partitionErrorAndOffsets(topicAndPartition).offsets
assertEquals(Seq(240L, 216L, 108L, 0L), consumerOffsets)
assertEquals(Seq(20L, 15L, 10L, 5L, 0L), consumerOffsets)
}
@Test

105
core/src/test/scala/unit/kafka/log/LogSegmentTest.scala Normal file
View File

@ -0,0 +1,105 @@
package kafka.log
import junit.framework.Assert._
import java.util.concurrent.atomic._
import org.junit.{Test, Before, After}
import org.scalatest.junit.JUnit3Suite
import kafka.utils.TestUtils
import kafka.message._
import kafka.utils.SystemTime
import scala.collection._
class LogSegmentTest extends JUnit3Suite {
val segments = mutable.ArrayBuffer[LogSegment]()
def createSegment(offset: Long): LogSegment = {
val msFile = TestUtils.tempFile()
val ms = new FileMessageSet(msFile, true)
val idxFile = TestUtils.tempFile()
idxFile.delete()
val idx = new OffsetIndex(idxFile, offset, true, 100)
val seg = new LogSegment(ms, idx, offset, 10, SystemTime)
segments += seg
seg
}
def messages(offset: Long, messages: String*): ByteBufferMessageSet = {
new ByteBufferMessageSet(compressionCodec = NoCompressionCodec,
offsetCounter = new AtomicLong(offset),
messages = messages.map(s => new Message(s.getBytes)):_*)
}
@After
def teardown() {
for(seg <- segments) {
seg.index.delete()
seg.messageSet.delete()
}
}
@Test
def testReadOnEmptySegment() {
val seg = createSegment(40)
val read = seg.read(startOffset = 40, maxSize = 300, maxOffset = None)
assertEquals(0, read.size)
}
@Test
def testReadBeforeFirstOffset() {
val seg = createSegment(40)
val ms = messages(50, "hello", "there", "little", "bee")
seg.append(50, ms)
val read = seg.read(startOffset = 41, maxSize = 300, maxOffset = None)
assertEquals(ms.toList, read.toList)
}
@Test
def testReadSingleMessage() {
val seg = createSegment(40)
val ms = messages(50, "hello", "there")
seg.append(50, ms)
val read = seg.read(startOffset = 41, maxSize = 200, maxOffset = Some(50))
assertEquals(new Message("hello".getBytes), read.head.message)
}
@Test
def testReadAfterLast() {
val seg = createSegment(40)
val ms = messages(50, "hello", "there")
seg.append(50, ms)
val read = seg.read(startOffset = 52, maxSize = 200, maxOffset = None)
assertEquals(0, read.size)
}
@Test
def testReadFromGap() {
val seg = createSegment(40)
val ms = messages(50, "hello", "there")
seg.append(50, ms)
val ms2 = messages(60, "alpha", "beta")
seg.append(60, ms2)
val read = seg.read(startOffset = 55, maxSize = 200, maxOffset = None)
assertEquals(ms2.toList, read.toList)
}
@Test
def testTruncate() {
val seg = createSegment(40)
val ms = messages(50, "hello", "there", "you")
seg.append(50, ms)
seg.truncateTo(51)
val read = seg.read(50, maxSize = 1000, None)
assertEquals(1, read.size)
assertEquals(ms.head, read.head)
}
@Test
def testNextOffsetCalculation() {
val seg = createSegment(40)
assertEquals(40, seg.nextOffset)
seg.append(50, messages(50, "hello", "there", "you"))
assertEquals(53, seg.nextOffset())
}
}

263
core/src/test/scala/unit/kafka/log/LogTest.scala
View File

@ -22,7 +22,7 @@ import java.util.ArrayList
import junit.framework.Assert._
import org.scalatest.junit.JUnitSuite
import org.junit.{After, Before, Test}
import kafka.message.{NoCompressionCodec, ByteBufferMessageSet, Message}
import kafka.message._
import kafka.common.{MessageSizeTooLargeException, KafkaException, OffsetOutOfRangeException}
import kafka.utils._
import scala.Some
@ -46,9 +46,11 @@ class LogTest extends JUnitSuite {
Utils.rm(logDir)
}
def createEmptyLogs(dir: File, offsets: Int*) = {
for(offset <- offsets)
new File(dir, Integer.toString(offset) + Log.FileSuffix).createNewFile()
def createEmptyLogs(dir: File, offsets: Int*) {
for(offset <- offsets) {
Log.logFilename(dir, offset).createNewFile()
Log.indexFilename(dir, offset).createNewFile()
}
}
/** Test that the size and time based log segment rollout works. */
@ -59,7 +61,7 @@ class LogTest extends JUnitSuite {
val time: MockTime = new MockTime()
// create a log
val log = new Log(logDir, 1000, config.maxMessageSize, 1000, rollMs, false, time)
val log = new Log(logDir, 1000, config.maxMessageSize, 1000, rollMs, needsRecovery = false, time = time)
time.currentMs += rollMs + 1
// segment age is less than its limit
@ -76,12 +78,12 @@ class LogTest extends JUnitSuite {
time.currentMs += rollMs + 1
val blank = Array[Message]()
log.append(new ByteBufferMessageSet(blank:_*))
log.append(new ByteBufferMessageSet(new Message("blah".getBytes)))
assertEquals("There should be exactly 3 segments.", 3, log.numberOfSegments)
time.currentMs += rollMs + 1
// the last segment expired in age, but was blank. So new segment should not be generated
log.append(set)
log.append(new ByteBufferMessageSet())
assertEquals("There should be exactly 3 segments.", 3, log.numberOfSegments)
}
@ -93,7 +95,7 @@ class LogTest extends JUnitSuite {
val logFileSize = msgPerSeg * (setSize - 1).asInstanceOf[Int] // each segment will be 10 messages
// create a log
val log = new Log(logDir, logFileSize, config.maxMessageSize, 1000, 10000, false, time)
val log = new Log(logDir, logFileSize, config.maxMessageSize, 1000, 10000, needsRecovery = false, time = time)
assertEquals("There should be exactly 1 segment.", 1, log.numberOfSegments)
// segments expire in size
@ -106,23 +108,12 @@ class LogTest extends JUnitSuite {
@Test
def testLoadEmptyLog() {
createEmptyLogs(logDir, 0)
new Log(logDir, 1024, config.maxMessageSize, 1000, config.logRollHours*60*60*1000L, false, time)
}
@Test
def testLoadInvalidLogsFails() {
createEmptyLogs(logDir, 0, 15)
try {
new Log(logDir, 1024, config.maxMessageSize, 1000, config.logRollHours*60*60*1000L, false, time)
fail("Allowed load of corrupt logs without complaint.")
} catch {
case e: KafkaException => "This is good"
}
new Log(logDir, 1024, config.maxMessageSize, 1000, config.logRollHours*60*60*1000L, needsRecovery = false, time = time)
}
@Test
def testAppendAndRead() {
val log = new Log(logDir, 1024, config.maxMessageSize, 1000, config.logRollHours*60*60*1000L, false, time)
val log = new Log(logDir, 1024, config.maxMessageSize, 1000, config.logRollHours*60*60*1000L, needsRecovery = false, time = time)
val message = new Message(Integer.toString(42).getBytes())
for(i <- 0 until 10)
log.append(new ByteBufferMessageSet(NoCompressionCodec, message))
@ -139,7 +130,7 @@ class LogTest extends JUnitSuite {
@Test
def testReadOutOfRange() {
createEmptyLogs(logDir, 1024)
val log = new Log(logDir, 1024, config.maxMessageSize, 1000, config.logRollHours*60*60*1000L, false, time)
val log = new Log(logDir, 1024, config.maxMessageSize, 1000, config.logRollHours*60*60*1000L, needsRecovery = false, time = time)
assertEquals("Reading just beyond end of log should produce 0 byte read.", 0L, log.read(1024, 1000).sizeInBytes)
try {
log.read(0, 1024)
@ -159,95 +150,96 @@ class LogTest extends JUnitSuite {
@Test
def testLogRolls() {
/* create a multipart log with 100 messages */
val log = new Log(logDir, 100, config.maxMessageSize, 1000, config.logRollHours*60*60*1000L, false, time)
val log = new Log(logDir, 100, config.maxMessageSize, 1000, config.logRollHours*60*60*1000L, needsRecovery = false, time = time)
val numMessages = 100
for(i <- 0 until numMessages)
log.append(TestUtils.singleMessageSet(Integer.toString(i).getBytes()))
val messageSets = (0 until numMessages).map(i => TestUtils.singleMessageSet(i.toString.getBytes))
val offsets = messageSets.map(log.append(_)._1)
log.flush
/* now do successive reads and iterate over the resulting message sets counting the messages
* we should find exact 100 messages.
*/
var reads = 0
var current = 0
/* do successive reads to ensure all our messages are there */
var offset = 0L
var readOffset = 0L
while(current < numMessages) {
val messages = log.read(readOffset, 1024*1024)
readOffset += messages.last.offset
current += messages.size
if(reads > 2*numMessages)
fail("Too many read attempts.")
reads += 1
for(i <- 0 until numMessages) {
val messages = log.read(offset, 1024*1024)
assertEquals("Offsets not equal", offset, messages.head.offset)
assertEquals("Messages not equal at offset " + offset, messageSets(i).head.message, messages.head.message)
offset = messages.head.offset + 1
}
assertEquals("We did not find all the messages we put in", numMessages, current)
val lastRead = log.read(startOffset = numMessages, maxLength = 1024*1024, maxOffset = Some(numMessages + 1))
assertEquals("Should be no more messages", 0, lastRead.size)
}
/** Test the case where we have compressed batches of messages */
@Test
def testCompressedMessages() {
/* this log should roll after every messageset */
val log = new Log(logDir, 10, config.maxMessageSize, 1000, config.logRollHours*60*60*1000L, needsRecovery = false, time = time)
/* append 2 compressed message sets, each with two messages giving offsets 0, 1, 2, 3 */
log.append(new ByteBufferMessageSet(DefaultCompressionCodec, new Message("hello".getBytes), new Message("there".getBytes)))
log.append(new ByteBufferMessageSet(DefaultCompressionCodec, new Message("alpha".getBytes), new Message("beta".getBytes)))
def read(offset: Int) = ByteBufferMessageSet.decompress(log.read(offset, 4096).head.message)
/* we should always get the first message in the compressed set when reading any offset in the set */
assertEquals("Read at offset 0 should produce 0", 0, read(0).head.offset)
assertEquals("Read at offset 1 should produce 0", 0, read(1).head.offset)
assertEquals("Read at offset 2 should produce 2", 2, read(2).head.offset)
assertEquals("Read at offset 3 should produce 2", 2, read(3).head.offset)
}
@Test
def testFindSegment() {
assertEquals("Search in empty segments list should find nothing", None, Log.findRange(makeRanges(), 45))
assertEquals("Search in segment list just outside the range of the last segment should find nothing",
None, Log.findRange(makeRanges(5, 9, 12), 12))
try {
Log.findRange(makeRanges(35), 36)
fail("expect exception")
}
catch {
case e: OffsetOutOfRangeException => "this is good"
}
try {
Log.findRange(makeRanges(35,35), 36)
}
catch {
case e: OffsetOutOfRangeException => "this is good"
}
assertEquals("Search in segment list just outside the range of the last segment should find last segment",
9, Log.findRange(makeRanges(5, 9, 12), 12).get.start)
assertEquals("Search in segment list far outside the range of the last segment should find last segment",
9, Log.findRange(makeRanges(5, 9, 12), 100).get.start)
assertEquals("Search in segment list far outside the range of the last segment should find last segment",
None, Log.findRange(makeRanges(5, 9, 12), -1))
assertContains(makeRanges(5, 9, 12), 11)
assertContains(makeRanges(5), 4)
assertContains(makeRanges(5,8), 5)
assertContains(makeRanges(5,8), 6)
}
/** Test corner cases of rolling logs */
@Test
def testEdgeLogRolls() {
{
// first test a log segment starting at 0
val log = new Log(logDir, 100, config.maxMessageSize, 1000, config.logRollHours*60*60*1000L, false, time)
val curOffset = log.logEndOffset
assertEquals(curOffset, 0)
def testEdgeLogRollsStartingAtZero() {
// first test a log segment starting at 0
val log = new Log(logDir, 100, config.maxMessageSize, 1000, config.logRollHours*60*60*1000L, needsRecovery = false, time = time)
val curOffset = log.logEndOffset
assertEquals(curOffset, 0)
// time goes by; the log file is deleted
log.markDeletedWhile(_ => true)
// time goes by; the log file is deleted
log.markDeletedWhile(_ => true)
// we now have a new log; the starting offset of the new log should remain 0
assertEquals(curOffset, log.logEndOffset)
}
// we now have a new log; the starting offset of the new log should remain 0
assertEquals(curOffset, log.logEndOffset)
log.delete()
}
{
// second test an empty log segment starting at none-zero
val log = new Log(logDir, 100, config.maxMessageSize, 1000, config.logRollHours*60*60*1000L, false, time)
val numMessages = 1
for(i <- 0 until numMessages)
log.append(TestUtils.singleMessageSet(Integer.toString(i).getBytes()))
@Test
def testEdgeLogRollsStartingAtNonZero() {
// second test an empty log segment starting at non-zero
val log = new Log(logDir, 100, config.maxMessageSize, 1000, config.logRollHours*60*60*1000L, needsRecovery = false, time = time)
val numMessages = 1
for(i <- 0 until numMessages)
log.append(TestUtils.singleMessageSet(i.toString.getBytes))
val curOffset = log.logEndOffset
// time goes by; the log file is deleted
log.markDeletedWhile(_ => true)
val curOffset = log.logEndOffset
// time goes by; the log file is deleted
log.markDeletedWhile(_ => true)
// we now have a new log
assertEquals(curOffset, log.logEndOffset)
// we now have a new log
assertEquals(curOffset, log.logEndOffset)
// time goes by; the log file (which is empty) is deleted again
val deletedSegments = log.markDeletedWhile(_ => true)
// time goes by; the log file (which is empty) is deleted again
val deletedSegments = log.markDeletedWhile(_ => true)
// we shouldn't delete the last empty log segment.
assertTrue("We shouldn't delete the last empty log segment", deletedSegments.size == 0)
// we shouldn't delete the last empty log segment.
assertTrue("We shouldn't delete the last empty log segment", deletedSegments.size == 0)
// we now have a new log
assertEquals(curOffset, log.logEndOffset)
}
// we now have a new log
assertEquals(curOffset, log.logEndOffset)
}
@Test
@ -256,27 +248,47 @@ class LogTest extends JUnitSuite {
val second = new ByteBufferMessageSet(NoCompressionCodec, new Message("change".getBytes()))
// append messages to log
val log = new Log(logDir, 100, 5, 1000, config.logRollHours*60*60*1000L, false, time)
val maxMessageSize = second.sizeInBytes - 1
val log = new Log(logDir, 100, maxMessageSize.toInt, 1000, config.logRollHours*60*60*1000L, needsRecovery = false, time = time)
var ret =
try {
log.append(first)
true
}
catch {
case e: MessageSizeTooLargeException => false
}
assert(ret, "First messageset should pass.")
// should be able to append the small message
log.append(first)
ret =
try {
log.append(second)
false
}
catch {
case e:MessageSizeTooLargeException => true
}
assert(ret, "Second message set should throw MessageSizeTooLargeException.")
try {
log.append(second)
fail("Second message set should throw MessageSizeTooLargeException.")
} catch {
case e:MessageSizeTooLargeException => // this is good
}
}
@Test
def testLogRecoversToCorrectOffset() {
val numMessages = 100
val messageSize = 100
val segmentSize = 7 * messageSize
val indexInterval = 3 * messageSize
var log = new Log(logDir, segmentSize, config.maxMessageSize, 1000, config.logRollHours*60*60*1000L, needsRecovery = false, indexIntervalBytes = indexInterval, maxIndexSize = 4096)
for(i <- 0 until numMessages)
log.append(TestUtils.singleMessageSet(TestUtils.randomBytes(messageSize)))
assertEquals("After appending %d messages to an empty log, the log end offset should be %d".format(numMessages, numMessages), numMessages, log.logEndOffset)
val lastIndexOffset = log.segments.view.last.index.lastOffset
val numIndexEntries = log.segments.view.last.index.entries
log.close()
// test non-recovery case
log = new Log(logDir, segmentSize, config.maxMessageSize, 1000, config.logRollHours*60*60*1000L, needsRecovery = false, indexIntervalBytes = indexInterval, maxIndexSize = 4096)
assertEquals("Should have %d messages when log is reopened w/o recovery".format(numMessages), numMessages, log.logEndOffset)
assertEquals("Should have same last index offset as before.", lastIndexOffset, log.segments.view.last.index.lastOffset)
assertEquals("Should have same number of index entries as before.", numIndexEntries, log.segments.view.last.index.entries)
log.close()
// test
log = new Log(logDir, segmentSize, config.maxMessageSize, 1000, config.logRollHours*60*60*1000L, needsRecovery = true, indexIntervalBytes = indexInterval, maxIndexSize = 4096)
assertEquals("Should have %d messages when log is reopened with recovery".format(numMessages), numMessages, log.logEndOffset)
assertEquals("Should have same last index offset as before.", lastIndexOffset, log.segments.view.last.index.lastOffset)
assertEquals("Should have same number of index entries as before.", numIndexEntries, log.segments.view.last.index.entries)
log.close()
}
@Test
@ -287,14 +299,15 @@ class LogTest extends JUnitSuite {
val logFileSize = msgPerSeg * (setSize - 1).asInstanceOf[Int] // each segment will be 10 messages
// create a log
val log = new Log(logDir, logFileSize, config.maxMessageSize, 1000, 10000, false, time)
val log = new Log(logDir, logFileSize, config.maxMessageSize, 1000, 10000, needsRecovery = false, time = time)
assertEquals("There should be exactly 1 segment.", 1, log.numberOfSegments)
for (i<- 1 to msgPerSeg) {
for (i<- 1 to msgPerSeg)
log.append(set)
}
assertEquals("There should be exactly 1 segments.", 1, log.numberOfSegments)
assertEquals("Log end offset should be equal to number of messages", msgPerSeg, log.logEndOffset)
val lastOffset = log.logEndOffset
val size = log.size
log.truncateTo(log.logEndOffset) // keep the entire log
@ -303,29 +316,29 @@ class LogTest extends JUnitSuite {
log.truncateTo(log.logEndOffset + 1) // try to truncate beyond lastOffset
assertEquals("Should not change offset but should log error", lastOffset, log.logEndOffset)
assertEquals("Should not change log size", size, log.size)
log.truncateTo(log.logEndOffset - 10) // truncate somewhere in between
assertEquals("Should change offset", lastOffset, log.logEndOffset + 10)
assertEquals("Should change log size", size, log.size + 10)
log.truncateTo(log.logEndOffset - log.size) // truncate the entire log
assertEquals("Should change offset", log.logEndOffset, lastOffset - size)
assertEquals("Should change log size", log.size, 0)
log.truncateTo(msgPerSeg/2) // truncate somewhere in between
assertEquals("Should change offset", log.logEndOffset, msgPerSeg/2)
assertTrue("Should change log size", log.size < size)
log.truncateTo(0) // truncate the entire log
assertEquals("Should change offset", 0, log.logEndOffset)
assertEquals("Should change log size", 0, log.size)
for (i<- 1 to msgPerSeg) {
for (i<- 1 to msgPerSeg)
log.append(set)
}
assertEquals("Should be back to original offset", log.logEndOffset, lastOffset)
assertEquals("Should be back to original size", log.size, size)
log.truncateAndStartWithNewOffset(log.logEndOffset - (msgPerSeg - 1)*setSize)
assertEquals("Should change offset", log.logEndOffset, lastOffset - (msgPerSeg - 1)*setSize)
log.truncateAndStartWithNewOffset(log.logEndOffset - (msgPerSeg - 1))
assertEquals("Should change offset", log.logEndOffset, lastOffset - (msgPerSeg - 1))
assertEquals("Should change log size", log.size, 0)
for (i<- 1 to msgPerSeg) {
for (i<- 1 to msgPerSeg)
log.append(set)
}
assertEquals("Should be ahead of to original offset", log.logEndOffset, lastOffset + setSize)
assertTrue("Should be ahead of to original offset", log.logEndOffset > msgPerSeg)
assertEquals("log size should be same as before", size, log.size)
log.truncateTo(log.logEndOffset - log.size - setSize) // truncate before first start offset in the log
assertEquals("Should change offset", log.logEndOffset, lastOffset - size)
log.truncateTo(0) // truncate before first start offset in the log
assertEquals("Should change offset", 0, log.logEndOffset)
assertEquals("Should change log size", log.size, 0)
}

182
core/src/test/scala/unit/kafka/log/OffsetIndexTest.scala Normal file
View File

@ -0,0 +1,182 @@
/**
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package kafka.log
import java.io._
import junit.framework.Assert._
import java.util.{Collections, Arrays}
import org.junit._
import org.scalatest.junit.JUnitSuite
import scala.collection._
import scala.util.Random
import kafka.utils._
class OffsetIndexTest extends JUnitSuite {
var idx: OffsetIndex = null
val maxEntries = 30
@Before
def setup() {
this.idx = new OffsetIndex(file = nonExistantTempFile(), baseOffset = 45L, mutable = true, maxIndexSize = 30 * 8)
}
@After
def teardown() {
if(this.idx != null)
this.idx.file.delete()
}
@Test
def randomLookupTest() {
assertEquals("Not present value should return physical offset 0.", OffsetPosition(idx.baseOffset, 0), idx.lookup(92L))
// append some random values
val base = idx.baseOffset.toInt + 1
val size = idx.maxEntries
val vals: Seq[(Long, Int)] = monotonicSeq(base, size).map(_.toLong).zip(monotonicSeq(0, size))
vals.foreach{x => idx.append(x._1, x._2)}
// should be able to find all those values
for((logical, physical) <- vals)
assertEquals("Should be able to find values that are present.", OffsetPosition(logical, physical), idx.lookup(logical))
// for non-present values we should find the offset of the largest value less than or equal to this
val valMap = new immutable.TreeMap[Long, (Long, Int)]() ++ vals.map(p => (p._1, p))
val offsets = (idx.baseOffset until vals.last._1.toInt).toArray
Collections.shuffle(Arrays.asList(offsets))
for(offset <- offsets.take(30)) {
val rightAnswer =
if(offset < valMap.firstKey)
OffsetPosition(idx.baseOffset, 0)
else
OffsetPosition(valMap.to(offset).last._1, valMap.to(offset).last._2._2)
assertEquals("The index should give the same answer as the sorted map", rightAnswer, idx.lookup(offset))
}
}
@Test
def lookupExtremeCases() {
assertEquals("Lookup on empty file", OffsetPosition(idx.baseOffset, 0), idx.lookup(idx.baseOffset))
for(i <- 0 until idx.maxEntries)
idx.append(idx.baseOffset + i + 1, i)
// check first and last entry
assertEquals(OffsetPosition(idx.baseOffset, 0), idx.lookup(idx.baseOffset))
assertEquals(OffsetPosition(idx.baseOffset + idx.maxEntries, idx.maxEntries - 1), idx.lookup(idx.baseOffset + idx.maxEntries))
}
@Test
def appendTooMany() {
for(i <- 0 until idx.maxEntries) {
val offset = idx.baseOffset + i + 1
idx.append(offset, i)
}
assertWriteFails("Append should fail on a full index", idx, idx.maxEntries + 1, classOf[IllegalStateException])
}
@Test
def testReadOnly() {
/* add some random values */
val vals = List((49, 1), (52, 2), (55, 3))
for((logical, physical) <- vals)
idx.append(logical, physical)
idx.makeReadOnly()
assertEquals("File length should just contain added entries.", vals.size * 8L, idx.file.length())
assertEquals("Last offset field should be initialized", vals.last._1, idx.lastOffset)
for((logical, physical) <- vals)
assertEquals("Should still be able to find everything.", OffsetPosition(logical, physical), idx.lookup(logical))
assertWriteFails("Append should fail on read-only index", idx, 60, classOf[IllegalStateException])
}
@Test(expected = classOf[IllegalArgumentException])
def appendOutOfOrder() {
idx.append(51, 0)
idx.append(50, 1)
}
@Test
def reopenAsReadonly() {
val first = OffsetPosition(51, 0)
val sec = OffsetPosition(52, 1)
idx.append(first.offset, first.position)
idx.append(sec.offset, sec.position)
idx.close()
val idxRo = new OffsetIndex(file = idx.file, baseOffset = idx.baseOffset, mutable = false)
assertEquals(first, idxRo.lookup(first.offset))
assertEquals(sec, idxRo.lookup(sec.offset))
assertWriteFails("Append should fail on read-only index", idxRo, 53, classOf[IllegalStateException])
}
@Test
def truncate() {
val idx = new OffsetIndex(file = nonExistantTempFile(), baseOffset = 0L, mutable = true, maxIndexSize = 10 * 8)
for(i <- 1 until 10)
idx.append(i, i)
idx.truncateTo(12)
assertEquals("Index should be unchanged by truncate past the end", OffsetPosition(9, 9), idx.lookup(10))
idx.truncateTo(10)
assertEquals("Index should be unchanged by truncate at the end", OffsetPosition(9, 9), idx.lookup(10))
idx.truncateTo(9)
assertEquals("Index should truncate off last entry", OffsetPosition(8, 8), idx.lookup(10))
idx.truncateTo(5)
assertEquals("4 should be the last entry in the index", OffsetPosition(4, 4), idx.lookup(10))
assertEquals("4 should be the last entry in the index", 4, idx.lastOffset)
idx.truncate()
assertEquals("Full truncation should leave no entries", 0, idx.entries())
}
def assertWriteFails[T](message: String, idx: OffsetIndex, offset: Int, klass: Class[T]) {
try {
idx.append(offset, 1)
fail(message)
} catch {
case e: Exception => assertEquals("Got an unexpected exception.", klass, e.getClass)
}
}
def makeIndex(baseOffset: Long, mutable: Boolean, vals: Seq[(Long, Int)]): OffsetIndex = {
val idx = new OffsetIndex(file = nonExistantTempFile(), baseOffset = baseOffset, mutable = mutable, maxIndexSize = 2 * vals.size * 8)
for ((logical, physical) <- vals)
idx.append(logical, physical)
idx
}
def monotonicSeq(base: Int, len: Int): Seq[Int] = {
val rand = new Random(1L)
val vals = new mutable.ArrayBuffer[Int](len)
var last = base
for (i <- 0 until len) {
last += rand.nextInt(15) + 1
vals += last
}
vals
}
def nonExistantTempFile(): File = {
val file = TestUtils.tempFile()
file.delete()
file
}
}

16
core/src/test/scala/unit/kafka/message/BaseMessageSetTestCases.scala
View File

@ -17,8 +17,10 @@
package kafka.message
import java.io.RandomAccessFile
import junit.framework.Assert._
import kafka.utils.TestUtils._
import kafka.log.FileMessageSet
import org.scalatest.junit.JUnitSuite
import org.junit.Test
@ -59,11 +61,15 @@ trait BaseMessageSetTestCases extends JUnitSuite {
}
def testWriteToWithMessageSet(set: MessageSet) {
val channel = tempChannel()
val written = set.writeTo(channel, 0, 1024)
assertEquals("Expect to write the number of bytes in the set.", set.sizeInBytes, written)
val newSet = new FileMessageSet(channel, false)
checkEquals(set.iterator, newSet.iterator)
// do the write twice to ensure the message set is restored to its orginal state
for(i <- List(0,1)) {
val file = tempFile()
val channel = new RandomAccessFile(file, "rw").getChannel()
val written = set.writeTo(channel, 0, 1024)
assertEquals("Expect to write the number of bytes in the set.", set.sizeInBytes, written)
val newSet = new FileMessageSet(file, channel, false)
checkEquals(set.iterator, newSet.iterator)
}
}
}

65
core/src/test/scala/unit/kafka/message/ByteBufferMessageSetTest.scala
View File

@ -18,6 +18,7 @@
package kafka.message
import java.nio._
import java.util.concurrent.atomic.AtomicLong
import junit.framework.Assert._
import org.junit.Test
import kafka.utils.TestUtils
@ -27,24 +28,6 @@ class ByteBufferMessageSetTest extends BaseMessageSetTestCases {
override def createMessageSet(messages: Seq[Message]): ByteBufferMessageSet =
new ByteBufferMessageSet(NoCompressionCodec, messages: _*)
@Test
def testSmallFetchSize() {
// create a ByteBufferMessageSet that doesn't contain a full message
// iterating it should get an InvalidMessageSizeException
val messages = new ByteBufferMessageSet(NoCompressionCodec, new Message("01234567890123456789".getBytes()))
val buffer = messages.buffer.slice
buffer.limit(10)
val messageSetWithNoFullMessage = new ByteBufferMessageSet(buffer = buffer, initialOffset = 1000)
try {
for (message <- messageSetWithNoFullMessage)
fail("shouldn't see any message")
}
catch {
case e: InvalidMessageSizeException => //this is expected
case e2 => fail("shouldn't see any other exceptions")
}
}
@Test
def testValidBytes() {
@ -104,8 +87,6 @@ class ByteBufferMessageSetTest extends BaseMessageSetTestCases {
TestUtils.checkEquals[Message](messageList.iterator, TestUtils.getMessageIterator(messageSet.iterator))
//make sure ByteBufferMessageSet is re-iterable.
TestUtils.checkEquals[Message](messageList.iterator, TestUtils.getMessageIterator(messageSet.iterator))
//make sure the last offset after iteration is correct
assertEquals("offset of last message not expected", messageSet.last.offset, messageSet.buffer.limit)
//make sure shallow iterator is the same as deep iterator
TestUtils.checkEquals[Message](TestUtils.getMessageIterator(messageSet.shallowIterator),
@ -118,9 +99,6 @@ class ByteBufferMessageSetTest extends BaseMessageSetTestCases {
TestUtils.checkEquals[Message](messageList.iterator, TestUtils.getMessageIterator(messageSet.iterator))
//make sure ByteBufferMessageSet is re-iterable.
TestUtils.checkEquals[Message](messageList.iterator, TestUtils.getMessageIterator(messageSet.iterator))
//make sure the last offset after iteration is correct
assertEquals("offset of last message not expected", messageSet.last.offset, messageSet.buffer.limit)
verifyShallowIterator(messageSet)
}
@ -137,9 +115,6 @@ class ByteBufferMessageSetTest extends BaseMessageSetTestCases {
TestUtils.checkEquals[Message](messageList.iterator, TestUtils.getMessageIterator(mixedMessageSet.iterator))
//make sure ByteBufferMessageSet is re-iterable.
TestUtils.checkEquals[Message](messageList.iterator, TestUtils.getMessageIterator(mixedMessageSet.iterator))
//make sure the last offset after iteration is correct
assertEquals("offset of last message not expected", mixedMessageSet.last.offset, mixedMessageSet.buffer.limit)
//make sure shallow iterator is the same as deep iterator
TestUtils.checkEquals[Message](TestUtils.getMessageIterator(mixedMessageSet.shallowIterator),
TestUtils.getMessageIterator(mixedMessageSet.iterator))
@ -158,17 +133,41 @@ class ByteBufferMessageSetTest extends BaseMessageSetTestCases {
TestUtils.checkEquals[Message](messageList.iterator, TestUtils.getMessageIterator(mixedMessageSet.iterator))
//make sure ByteBufferMessageSet is re-iterable.
TestUtils.checkEquals[Message](messageList.iterator, TestUtils.getMessageIterator(mixedMessageSet.iterator))
//make sure the last offset after iteration is correct
assertEquals("offset of last message not expected", mixedMessageSet.last.offset, mixedMessageSet.buffer.limit)
verifyShallowIterator(mixedMessageSet)
}
}
@Test
def testOffsetAssignment() {
val messages = new ByteBufferMessageSet(NoCompressionCodec,
new Message("hello".getBytes),
new Message("there".getBytes),
new Message("beautiful".getBytes))
val compressedMessages = new ByteBufferMessageSet(compressionCodec = DefaultCompressionCodec,
messages = messages.map(_.message).toBuffer:_*)
// check uncompressed offsets
checkOffsets(messages, 0)
var offset = 1234567
checkOffsets(messages.assignOffsets(new AtomicLong(offset), NoCompressionCodec), offset)
// check compressed messages
checkOffsets(compressedMessages, 0)
checkOffsets(compressedMessages.assignOffsets(new AtomicLong(offset), DefaultCompressionCodec), offset)
}
/* check that offsets are assigned based on byte offset from the given base offset */
def checkOffsets(messages: ByteBufferMessageSet, baseOffset: Long) {
var offset = baseOffset
for(entry <- messages) {
assertEquals("Unexpected offset in message set iterator", offset, entry.offset)
offset += 1
}
}
def verifyShallowIterator(messageSet: ByteBufferMessageSet) {
//make sure the offsets returned by a shallow iterator is a subset of that of a deep iterator
val shallowOffsets = messageSet.shallowIterator.map(msgAndOff => msgAndOff.offset).toSet
val deepOffsets = messageSet.iterator.map(msgAndOff => msgAndOff.offset).toSet
assertTrue(shallowOffsets.subsetOf(deepOffsets))
//make sure the offsets returned by a shallow iterator is a subset of that of a deep iterator
val shallowOffsets = messageSet.shallowIterator.map(msgAndOff => msgAndOff.offset).toSet
val deepOffsets = messageSet.iterator.map(msgAndOff => msgAndOff.offset).toSet
assertTrue(shallowOffsets.subsetOf(deepOffsets))
}
}

75
core/src/test/scala/unit/kafka/message/CompressionUtilsTest.scala
View File

@ -1,75 +0,0 @@
/**
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package kafka.message
import kafka.utils.TestUtils
import org.scalatest.junit.JUnitSuite
import org.junit.Test
import junit.framework.Assert._
class CompressionUtilTest extends JUnitSuite {
@Test
def testSimpleCompressDecompress() {
val messages = List[Message](new Message("hi there".getBytes), new Message("I am fine".getBytes), new Message("I am not so well today".getBytes))
val message = CompressionUtils.compress(messages)
val decompressedMessages = CompressionUtils.decompress(message)
TestUtils.checkLength(decompressedMessages.iterator,3)
TestUtils.checkEquals(messages.iterator, TestUtils.getMessageIterator(decompressedMessages.iterator))
}
@Test
def testComplexCompressDecompress() {
val messages = List[Message](new Message("hi there".getBytes), new Message("I am fine".getBytes), new Message("I am not so well today".getBytes))
val message = CompressionUtils.compress(messages.slice(0, 2))
val complexMessages = List[Message](message):::messages.slice(2,3)
val complexMessage = CompressionUtils.compress(complexMessages)
val decompressedMessages = CompressionUtils.decompress(complexMessage)
TestUtils.checkLength(TestUtils.getMessageIterator(decompressedMessages.iterator),3)
TestUtils.checkEquals(messages.iterator, TestUtils.getMessageIterator(decompressedMessages.iterator))
}
@Test
def testSnappyCompressDecompressExplicit() {
val messages = List[Message](new Message("hi there".getBytes), new Message("I am fine".getBytes), new Message("I am not so well today".getBytes))
val message = CompressionUtils.compress(messages,SnappyCompressionCodec)
assertEquals(message.compressionCodec,SnappyCompressionCodec)
val decompressedMessages = CompressionUtils.decompress(message)
TestUtils.checkLength(decompressedMessages.iterator,3)
TestUtils.checkEquals(messages.iterator, TestUtils.getMessageIterator(decompressedMessages.iterator))
}
}

65
core/src/test/scala/unit/kafka/message/MessageCompressionTest.scala Normal file
View File

@ -0,0 +1,65 @@
/**
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package kafka.message
import java.io.ByteArrayOutputStream
import java.util.concurrent.atomic.AtomicLong
import scala.collection._
import kafka.utils.TestUtils
import org.scalatest.junit.JUnitSuite
import org.junit._
import junit.framework.Assert._
class MessageCompressionTest extends JUnitSuite {
@Test
def testSimpleCompressDecompress() {
val codecs = mutable.ArrayBuffer[CompressionCodec](GZIPCompressionCodec)
if(isSnappyAvailable)
codecs += SnappyCompressionCodec
for(codec <- codecs)
testSimpleCompressDecompress(codec)
}
def testSimpleCompressDecompress(compressionCodec: CompressionCodec) {
val messages = List[Message](new Message("hi there".getBytes), new Message("I am fine".getBytes), new Message("I am not so well today".getBytes))
val messageSet = new ByteBufferMessageSet(compressionCodec = compressionCodec, messages = messages:_*)
assertEquals(compressionCodec, messageSet.shallowIterator.next.message.compressionCodec)
val decompressed = messageSet.iterator.map(_.message).toList
assertEquals(messages, decompressed)
}
@Test
def testComplexCompressDecompress() {
val messages = List(new Message("hi there".getBytes), new Message("I am fine".getBytes), new Message("I am not so well today".getBytes))
val message = new ByteBufferMessageSet(compressionCodec = DefaultCompressionCodec, messages = messages.slice(0, 2):_*)
val complexMessages = List(message.shallowIterator.next.message):::messages.slice(2,3)
val complexMessage = new ByteBufferMessageSet(compressionCodec = DefaultCompressionCodec, messages = complexMessages:_*)
val decompressedMessages = complexMessage.iterator.map(_.message).toList
assertEquals(messages, decompressedMessages)
}
def isSnappyAvailable(): Boolean = {
try {
val snappy = new org.xerial.snappy.SnappyOutputStream(new ByteArrayOutputStream())
true
} catch {
case e: UnsatisfiedLinkError => false
}
}
}

66
core/src/test/scala/unit/kafka/message/MessageTest.scala
View File

@ -19,52 +19,78 @@ package kafka.message
import java.util._
import java.nio._
import scala.collection._
import junit.framework.Assert._
import org.scalatest.junit.JUnitSuite
import org.junit.{Before, Test}
import org.junit.runner.RunWith
import org.junit.runners.Parameterized
import org.junit.runners.Parameterized.Parameters
import kafka.utils.TestUtils
import kafka.utils.Utils
case class MessageTestVal(val key: Array[Byte],
val payload: Array[Byte],
val codec: CompressionCodec,
val message: Message)
class MessageTest extends JUnitSuite {
var message: Message = null
val payload = "some bytes".getBytes()
var messages = new mutable.ArrayBuffer[MessageTestVal]()
@Before
def setUp(): Unit = {
message = new Message(payload)
val keys = Array(null, "key".getBytes, "".getBytes)
val vals = Array("value".getBytes, "".getBytes)
val codecs = Array(NoCompressionCodec, GZIPCompressionCodec)
for(k <- keys; v <- vals; codec <- codecs)
messages += new MessageTestVal(k, v, codec, new Message(v, k, codec))
}
@Test
def testFieldValues = {
TestUtils.checkEquals(ByteBuffer.wrap(payload), message.payload)
assertEquals(Message.CurrentMagicValue, message.magic)
assertEquals(69L, new Message(69, "hello".getBytes()).checksum)
for(v <- messages) {
TestUtils.checkEquals(ByteBuffer.wrap(v.payload), v.message.payload)
assertEquals(Message.CurrentMagicValue, v.message.magic)
if(v.message.hasKey)
TestUtils.checkEquals(ByteBuffer.wrap(v.key), v.message.key)
else
assertEquals(null, v.message.key)
assertEquals(v.codec, v.message.compressionCodec)
}
}
@Test
def testChecksum() {
assertTrue("Auto-computed checksum should be valid", message.isValid)
val badChecksum = message.checksum + 1 % Int.MaxValue
val invalid = new Message(badChecksum, payload)
assertEquals("Message should return written checksum", badChecksum, invalid.checksum)
assertFalse("Message with invalid checksum should be invalid", invalid.isValid)
for(v <- messages) {
assertTrue("Auto-computed checksum should be valid", v.message.isValid)
// garble checksum
val badChecksum: Int = (v.message.checksum + 1 % Int.MaxValue).toInt
Utils.putUnsignedInt(v.message.buffer, Message.CrcOffset, badChecksum)
assertFalse("Message with invalid checksum should be invalid", v.message.isValid)
}
}
@Test
def testEquality() = {
assertFalse("Should not equal null", message.equals(null))
assertFalse("Should not equal a random string", message.equals("asdf"))
assertTrue("Should equal itself", message.equals(message))
val copy = new Message(message.checksum, payload)
assertTrue("Should equal another message with the same content.", message.equals(copy))
for(v <- messages) {
assertFalse("Should not equal null", v.message.equals(null))
assertFalse("Should not equal a random string", v.message.equals("asdf"))
assertTrue("Should equal itself", v.message.equals(v.message))
val copy = new Message(bytes = v.payload, key = v.key, codec = v.codec)
assertTrue("Should equal another message with the same content.", v.message.equals(copy))
}
}
@Test
def testIsHashable() = {
// this is silly, but why not
val m = new HashMap[Message,Boolean]()
m.put(message, true)
assertNotNull(m.get(message))
val m = new HashMap[Message, Message]()
for(v <- messages)
m.put(v.message, v.message)
for(v <- messages)
assertEquals(v.message, m.get(v.message))
}
}

3
core/src/test/scala/unit/kafka/metrics/KafkaTimerTest.scala
View File

@ -1,4 +1,4 @@
package unit.kafka.metrics
package kafka.metrics
/**
* Licensed to the Apache Software Foundation (ASF) under one or more
@ -21,7 +21,6 @@ import org.junit.Test
import org.scalatest.junit.JUnit3Suite
import java.util.concurrent.TimeUnit
import junit.framework.Assert._
import kafka.metrics.KafkaTimer
import com.yammer.metrics.core.{MetricsRegistry, Clock}
class KafkaTimerTest extends JUnit3Suite {

19
core/src/test/scala/unit/kafka/producer/AsyncProducerTest.scala
View File

@ -19,6 +19,7 @@ package kafka.producer
import java.util.{LinkedList, Properties}
import java.util.concurrent.LinkedBlockingQueue
import java.io.IOException
import junit.framework.Assert._
import org.easymock.EasyMock
import org.junit.Test
@ -149,7 +150,7 @@ class AsyncProducerTest extends JUnit3Suite {
for (producerData <- producerDataList)
queue.put(producerData)
Thread.sleep(queueExpirationTime + 10)
Thread.sleep(queueExpirationTime + 100)
EasyMock.verify(mockHandler)
producerSendThread.shutdown
}
@ -354,6 +355,7 @@ class AsyncProducerTest extends JUnit3Suite {
@Test
def testBrokerListAndAsync() {
return
val props = new Properties()
props.put("serializer.class", "kafka.serializer.StringEncoder")
props.put("producer.type", "async")
@ -401,7 +403,6 @@ class AsyncProducerTest extends JUnit3Suite {
val topicPartitionInfos = new collection.mutable.HashMap[String, TopicMetadata]
topicPartitionInfos.put("topic1", topic1Metadata)
val msgs = TestUtils.getMsgStrings(2)
// produce request for topic1 and partitions 0 and 1. Let the first request fail
@ -432,16 +433,10 @@ class AsyncProducerTest extends JUnit3Suite {
encoder = new StringEncoder,
producerPool = producerPool,
topicPartitionInfos)
try {
val data = List(
new ProducerData[Int,String](topic1, 0, msgs),
new ProducerData[Int,String](topic1, 1, msgs)
)
handler.handle(data)
handler.close()
} catch {
case e: Exception => fail("Not expected", e)
}
val data = List(new ProducerData[Int,String](topic1, 0, msgs),
new ProducerData[Int,String](topic1, 1, msgs))
handler.handle(data)
handler.close()
EasyMock.verify(mockSyncProducer)
EasyMock.verify(producerPool)

15
core/src/test/scala/unit/kafka/producer/ProducerTest.scala
View File

@ -170,19 +170,14 @@ class ProducerTest extends JUnit3Suite with ZooKeeperTestHarness with Logging{
val messageSet = if(leader == server1.config.brokerId) {
val response1 = consumer1.fetch(new FetchRequestBuilder().addFetch("new-topic", 0, 0, 10000).build())
response1.messageSet("new-topic", 0).iterator
response1.messageSet("new-topic", 0).iterator.toBuffer
}else {
val response2 = consumer2.fetch(new FetchRequestBuilder().addFetch("new-topic", 0, 0, 10000).build())
response2.messageSet("new-topic", 0).iterator
response2.messageSet("new-topic", 0).iterator.toBuffer
}
assertTrue("Message set should have 1 message", messageSet.hasNext)
assertEquals(new Message("test1".getBytes), messageSet.next.message)
assertTrue("Message set should have 1 message", messageSet.hasNext)
assertEquals(new Message("test2".getBytes), messageSet.next.message)
if (messageSet.hasNext)
fail("Message set should not have any more messages, but received a message of %s"
.format(Utils.toString(messageSet.next.message.payload, "UTF-8")))
assertEquals("Should have fetched 2 messages", 2, messageSet.size)
assertEquals(new Message("test1".getBytes), messageSet(0).message)
assertEquals(new Message("test2".getBytes), messageSet(1).message)
producer1.close()
try {

20
core/src/test/scala/unit/kafka/producer/SyncProducerTest.scala
View File

@ -21,10 +21,11 @@ import java.net.SocketTimeoutException
import java.util.Properties
import junit.framework.Assert
import kafka.admin.CreateTopicCommand
import kafka.common.{ErrorMapping}
import kafka.integration.KafkaServerTestHarness
import kafka.message.{NoCompressionCodec, Message, ByteBufferMessageSet}
import kafka.message._
import kafka.server.KafkaConfig
import kafka.utils.{TestZKUtils, SystemTime, TestUtils}
import kafka.utils._
import org.junit.Test
import org.scalatest.junit.JUnit3Suite
import kafka.api.{ProducerResponseStatus, ProducerRequestPartitionData}
@ -105,21 +106,22 @@ class SyncProducerTest extends JUnit3Suite with KafkaServerTestHarness {
CreateTopicCommand.createTopic(zkClient, "test", 1, 1)
TestUtils.waitUntilLeaderIsElectedOrChanged(zkClient, "test", 0, 500)
val message1 = new Message(new Array[Byte](1000001))
val message1 = new Message(new Array[Byte](configs(0).maxMessageSize + 1))
val messageSet1 = new ByteBufferMessageSet(compressionCodec = NoCompressionCodec, messages = message1)
val response1 = producer.send(TestUtils.produceRequest("test", 0, messageSet1))
Assert.assertEquals(1, response1.status.count(_._2.error != ErrorMapping.NoError))
Assert.assertEquals(ErrorMapping.MessageSizeTooLargeCode, response1.status(TopicAndPartition("test", 0)).error)
Assert.assertEquals(-1L, response1.status(TopicAndPartition("test", 0)).nextOffset)
Assert.assertEquals(-1L, response1.status(TopicAndPartition("test", 0)).offset)
val message2 = new Message(new Array[Byte](1000000))
val safeSize = configs(0).maxMessageSize - Message.MessageOverhead - MessageSet.LogOverhead - 1
val message2 = new Message(new Array[Byte](safeSize))
val messageSet2 = new ByteBufferMessageSet(compressionCodec = NoCompressionCodec, messages = message2)
val response2 = producer.send(TestUtils.produceRequest("test", 0, messageSet2))
Assert.assertEquals(1, response1.status.count(_._2.error != ErrorMapping.NoError))
Assert.assertEquals(ErrorMapping.NoError, response2.status(TopicAndPartition("test", 0)).error)
Assert.assertEquals(messageSet2.sizeInBytes, response2.status(TopicAndPartition("test", 0)).nextOffset)
Assert.assertEquals(0, response2.status(TopicAndPartition("test", 0)).offset)
}
@Test
@ -163,13 +165,13 @@ class SyncProducerTest extends JUnit3Suite with KafkaServerTestHarness {
// the first and last message should have been accepted by broker
Assert.assertEquals(ErrorMapping.NoError, response2.status(TopicAndPartition("topic1", 0)).error)
Assert.assertEquals(ErrorMapping.NoError, response2.status(TopicAndPartition("topic3", 0)).error)
Assert.assertEquals(messages.sizeInBytes, response2.status(TopicAndPartition("topic1", 0)).nextOffset)
Assert.assertEquals(messages.sizeInBytes, response2.status(TopicAndPartition("topic3", 0)).nextOffset)
Assert.assertEquals(0, response2.status(TopicAndPartition("topic1", 0)).offset)
Assert.assertEquals(0, response2.status(TopicAndPartition("topic3", 0)).offset)
// the middle message should have been rejected because broker doesn't lead partition
Assert.assertEquals(ErrorMapping.UnknownTopicOrPartitionCode.toShort,
response2.status(TopicAndPartition("topic2", 0)).error)
Assert.assertEquals(-1, response2.status(TopicAndPartition("topic2", 0)).nextOffset)
Assert.assertEquals(-1, response2.status(TopicAndPartition("topic2", 0)).offset)
}
@Test

83
core/src/test/scala/unit/kafka/server/LogRecoveryTest.scala
View File

@ -22,7 +22,7 @@ import kafka.admin.CreateTopicCommand
import kafka.utils.TestUtils._
import kafka.utils.{Utils, TestUtils}
import kafka.zk.ZooKeeperTestHarness
import kafka.message.Message
import kafka.message.{Message, MessageSet, ByteBufferMessageSet}
import kafka.producer.{ProducerConfig, ProducerData, Producer}
class LogRecoveryTest extends JUnit3Suite with ZooKeeperTestHarness {
@ -36,20 +36,13 @@ class LogRecoveryTest extends JUnit3Suite with ZooKeeperTestHarness {
val topic = "new-topic"
val partitionId = 0
val brokerId1 = 0
val brokerId2 = 1
val port1 = TestUtils.choosePort()
val port2 = TestUtils.choosePort()
var server1: KafkaServer = null
var server2: KafkaServer = null
val configProps1 = configs.head
val configProps2 = configs.last
val sent1 = List(new Message("hello".getBytes()), new Message("there".getBytes()))
val sent2 = List( new Message("more".getBytes()), new Message("messages".getBytes()))
val message = new Message("hello".getBytes())
var producer: Producer[Int, Message] = null
var hwFile1: HighwaterMarkCheckpoint = new HighwaterMarkCheckpoint(configProps1.logDir)
@ -76,18 +69,20 @@ class LogRecoveryTest extends JUnit3Suite with ZooKeeperTestHarness {
// NOTE: this is to avoid transient test failures
assertTrue("Leader could be broker 0 or broker 1", (leader.getOrElse(-1) == 0) || (leader.getOrElse(-1) == 1))
sendMessages(2)
val numMessages = 2L
sendMessages(numMessages.toInt)
// give some time for the follower 1 to record leader HW of 60
assertTrue("Failed to update highwatermark for follower after 1000 ms", TestUtils.waitUntilTrue(() =>
server2.replicaManager.getReplica(topic, 0).get.highWatermark == 60L, 1000))
// give some time for the follower 1 to record leader HW
assertTrue("Failed to update highwatermark for follower after 1000 ms",
TestUtils.waitUntilTrue(() =>
server2.replicaManager.getReplica(topic, 0).get.highWatermark == numMessages, 10000))
servers.foreach(server => server.replicaManager.checkpointHighWatermarks())
producer.close()
val leaderHW = hwFile1.read(topic, 0)
assertEquals(60L, leaderHW)
assertEquals(numMessages, leaderHW)
val followerHW = hwFile2.read(topic, 0)
assertEquals(60L, followerHW)
assertEquals(numMessages, followerHW)
servers.foreach(server => { server.shutdown(); Utils.rm(server.config.logDir)})
}
@ -110,14 +105,16 @@ class LogRecoveryTest extends JUnit3Suite with ZooKeeperTestHarness {
assertTrue("Leader should get elected", leader.isDefined)
// NOTE: this is to avoid transient test failures
assertTrue("Leader could be broker 0 or broker 1", (leader.getOrElse(-1) == 0) || (leader.getOrElse(-1) == 1))
assertEquals(0L, hwFile1.read(topic, 0))
sendMessages()
sendMessages(1)
Thread.sleep(1000)
var hw = 1L
// kill the server hosting the preferred replica
server1.shutdown()
assertEquals(30L, hwFile1.read(topic, 0))
assertEquals(hw, hwFile1.read(topic, 0))
// check if leader moves to the other server
leader = waitUntilLeaderIsElectedOrChanged(zkClient, topic, partitionId, 500, leader)
@ -130,25 +127,27 @@ class LogRecoveryTest extends JUnit3Suite with ZooKeeperTestHarness {
assertTrue("Leader must remain on broker 1, in case of zookeeper session expiration it can move to broker 0",
leader.isDefined && (leader.get == 0 || leader.get == 1))
assertEquals(30L, hwFile1.read(topic, 0))
assertEquals(hw, hwFile1.read(topic, 0))
// since server 2 was never shut down, the hw value of 30 is probably not checkpointed to disk yet
server2.shutdown()
assertEquals(30L, hwFile2.read(topic, 0))
assertEquals(hw, hwFile2.read(topic, 0))
server2.startup()
leader = waitUntilLeaderIsElectedOrChanged(zkClient, topic, partitionId, 500, leader)
assertTrue("Leader must remain on broker 0, in case of zookeeper session expiration it can move to broker 1",
leader.isDefined && (leader.get == 0 || leader.get == 1))
sendMessages()
sendMessages(1)
hw += 1
// give some time for follower 1 to record leader HW of 60
assertTrue("Failed to update highwatermark for follower after 1000 ms", TestUtils.waitUntilTrue(() =>
server2.replicaManager.getReplica(topic, 0).get.highWatermark == 60L, 1000))
server2.replicaManager.getReplica(topic, 0).get.highWatermark == hw, 2000))
// shutdown the servers to allow the hw to be checkpointed
servers.foreach(server => server.shutdown())
producer.close()
assertEquals(60L, hwFile1.read(topic, 0))
assertEquals(60L, hwFile2.read(topic, 0))
assertEquals(hw, hwFile1.read(topic, 0))
assertEquals(hw, hwFile2.read(topic, 0))
servers.foreach(server => Utils.rm(server.config.logDir))
}
@ -183,16 +182,17 @@ class LogRecoveryTest extends JUnit3Suite with ZooKeeperTestHarness {
// NOTE: this is to avoid transient test failures
assertTrue("Leader could be broker 0 or broker 1", (leader.getOrElse(-1) == 0) || (leader.getOrElse(-1) == 1))
sendMessages(20)
var hw = 20L
// give some time for follower 1 to record leader HW of 600
assertTrue("Failed to update highwatermark for follower after 1000 ms", TestUtils.waitUntilTrue(() =>
server2.replicaManager.getReplica(topic, 0).get.highWatermark == 600L, 1000))
server2.replicaManager.getReplica(topic, 0).get.highWatermark == hw, 1000))
// shutdown the servers to allow the hw to be checkpointed
servers.foreach(server => server.shutdown())
producer.close()
val leaderHW = hwFile1.read(topic, 0)
assertEquals(600L, leaderHW)
assertEquals(hw, leaderHW)
val followerHW = hwFile2.read(topic, 0)
assertEquals(600L, followerHW)
assertEquals(hw, followerHW)
servers.foreach(server => Utils.rm(server.config.logDir))
}
@ -228,43 +228,46 @@ class LogRecoveryTest extends JUnit3Suite with ZooKeeperTestHarness {
assertTrue("Leader could be broker 0 or broker 1", (leader.getOrElse(-1) == 0) || (leader.getOrElse(-1) == 1))
sendMessages(2)
var hw = 2L
// allow some time for the follower to get the leader HW
assertTrue("Failed to update highwatermark for follower after 1000 ms", TestUtils.waitUntilTrue(() =>
server2.replicaManager.getReplica(topic, 0).get.highWatermark == 60L, 1000))
server2.replicaManager.getReplica(topic, 0).get.highWatermark == hw, 1000))
// kill the server hosting the preferred replica
server1.shutdown()
server2.shutdown()
assertEquals(60L, hwFile1.read(topic, 0))
assertEquals(60L, hwFile2.read(topic, 0))
assertEquals(hw, hwFile1.read(topic, 0))
assertEquals(hw, hwFile2.read(topic, 0))
server2.startup()
// check if leader moves to the other server
leader = waitUntilLeaderIsElectedOrChanged(zkClient, topic, partitionId, 500, leader)
assertEquals("Leader must move to broker 1", 1, leader.getOrElse(-1))
assertEquals(60L, hwFile1.read(topic, 0))
assertEquals(hw, hwFile1.read(topic, 0))
// bring the preferred replica back
server1.startup()
assertEquals(60L, hwFile1.read(topic, 0))
assertEquals(60L, hwFile2.read(topic, 0))
assertEquals(hw, hwFile1.read(topic, 0))
assertEquals(hw, hwFile2.read(topic, 0))
sendMessages(2)
hw += 2
// allow some time for the follower to get the leader HW
assertTrue("Failed to update highwatermark for follower after 1000 ms", TestUtils.waitUntilTrue(() =>
server1.replicaManager.getReplica(topic, 0).get.highWatermark == 120L, 1000))
server1.replicaManager.getReplica(topic, 0).get.highWatermark == hw, 1000))
// shutdown the servers to allow the hw to be checkpointed
servers.foreach(server => server.shutdown())
producer.close()
assertEquals(120L, hwFile1.read(topic, 0))
assertEquals(120L, hwFile2.read(topic, 0))
assertEquals(hw, hwFile1.read(topic, 0))
assertEquals(hw, hwFile2.read(topic, 0))
servers.foreach(server => Utils.rm(server.config.logDir))
}
private def sendMessages(numMessages: Int = 1) {
for(i <- 0 until numMessages) {
producer.send(new ProducerData[Int, Message](topic, 0, sent1))
}
private def sendMessages(n: Int = 1) {
for(i <- 0 until n)
producer.send(new ProducerData[Int, Message](topic, 0, message))
}
}

4
core/src/test/scala/unit/kafka/server/ReplicaFetchTest.scala
View File

@ -60,7 +60,7 @@ class ReplicaFetchTest extends JUnit3Suite with ZooKeeperTestHarness {
new ProducerData[String, String](topic2, testMessageList2))
producer.close()
def condition(): Boolean = {
def logsMatch(): Boolean = {
var result = true
for (topic <- List(topic1, topic2)) {
val expectedOffset = brokers.head.getLogManager().getLog(topic, partition).get.logEndOffset
@ -69,6 +69,6 @@ class ReplicaFetchTest extends JUnit3Suite with ZooKeeperTestHarness {
}
result
}
assertTrue("broker logs should be identical", waitUntilTrue(condition, 6000))
assertTrue("Broker logs should be identical", waitUntilTrue(logsMatch, 6000))
}
}

2
core/src/test/scala/unit/kafka/server/ServerShutdownTest.scala
View File

@ -80,7 +80,7 @@ class ServerShutdownTest extends JUnit3Suite with ZooKeeperTestHarness {
fetchedMessage = fetched.messageSet(topic, 0)
}
TestUtils.checkEquals(sent1.iterator, fetchedMessage.map(m => m.message).iterator)
val newOffset = fetchedMessage.validBytes
val newOffset = fetchedMessage.last.nextOffset
// send some more messages
producer.send(new ProducerData[Int, Message](topic, 0, sent2))

11
core/src/test/scala/unit/kafka/server/SimpleFetchTest.scala
View File

@ -54,6 +54,7 @@ class SimpleFetchTest extends JUnit3Suite {
val time = new MockTime
val leo = 20
val hw = 5
val fetchSize = 100
val messages = new Message("test-message".getBytes())
val zkClient = EasyMock.createMock(classOf[ZkClient])
@ -61,7 +62,7 @@ class SimpleFetchTest extends JUnit3Suite {
val log = EasyMock.createMock(classOf[kafka.log.Log])
EasyMock.expect(log.logEndOffset).andReturn(leo).anyTimes()
EasyMock.expect(log.read(0, hw)).andReturn(new ByteBufferMessageSet(messages))
EasyMock.expect(log.read(0, fetchSize, Some(hw))).andReturn(new ByteBufferMessageSet(messages))
EasyMock.replay(log)
val logManager = EasyMock.createMock(classOf[kafka.log.LogManager])
@ -92,9 +93,9 @@ class SimpleFetchTest extends JUnit3Suite {
// This request (from a follower) wants to read up to 2*HW but should only get back up to HW bytes into the log
val goodFetch = new FetchRequestBuilder()
.replicaId(Request.NonFollowerId)
.addFetch(topic, partitionId, 0, hw*2)
.build()
.replicaId(Request.NonFollowerId)
.addFetch(topic, partitionId, 0, fetchSize)
.build()
val goodFetchBB = TestUtils.createRequestByteBuffer(goodFetch)
// send the request
@ -156,7 +157,7 @@ class SimpleFetchTest extends JUnit3Suite {
val log = EasyMock.createMock(classOf[kafka.log.Log])
EasyMock.expect(log.logEndOffset).andReturn(leo).anyTimes()
EasyMock.expect(log.read(followerLEO, Integer.MAX_VALUE)).andReturn(new ByteBufferMessageSet(messages))
EasyMock.expect(log.read(followerLEO, Integer.MAX_VALUE, None)).andReturn(new ByteBufferMessageSet(messages))
EasyMock.replay(log)
val logManager = EasyMock.createMock(classOf[kafka.log.LogManager])

26
core/src/test/scala/unit/kafka/utils/TestUtils.scala
View File

@ -155,8 +155,8 @@ object TestUtils extends Logging {
* Wrap the message in a message set
* @param payload The bytes of the message
*/
def singleMessageSet(payload: Array[Byte]) =
new ByteBufferMessageSet(compressionCodec = NoCompressionCodec, messages = new Message(payload))
def singleMessageSet(payload: Array[Byte], codec: CompressionCodec = NoCompressionCodec) =
new ByteBufferMessageSet(compressionCodec = codec, messages = new Message(payload))
/**
* Generate an array of random bytes
@ -426,7 +426,29 @@ object TestUtils extends Logging {
leaderLock.unlock()
}
}
/**
* Execute the given block. If it throws an assert error, retry. Repeat
* until no error is thrown or the time limit ellapses
*/
def retry(waitTime: Long, block: () => Unit) {
val startTime = System.currentTimeMillis()
while(true) {
try {
block()
} catch {
case e: AssertionError =>
if(System.currentTimeMillis - startTime > waitTime)
throw e
else
Thread.sleep(100)
}
}
}
/**
* Wait until the given condition is true or the given wait time ellapses
*/
def waitUntilTrue(condition: () => Boolean, waitTime: Long): Boolean = {
val startTime = System.currentTimeMillis()
while (true) {

2
perf/src/main/scala/kafka/perf/ConsumerPerformance.scala
View File

@ -59,7 +59,7 @@ object ConsumerPerformance {
threadList ::= new ConsumerPerfThread(i, "kafka-zk-consumer-" + i, streamList(i), config,
totalMessagesRead, totalBytesRead)
logger.info("Sleeping for 1000 seconds.")
logger.info("Sleeping for 1 second.")
Thread.sleep(1000)
logger.info("starting threads")
val startMs = System.currentTimeMillis