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make # of consumer rebalance retries configurable; patched by Jun Rao; reviewed by Neha Narkhede; KAFKA-213 

git-svn-id: https://svn.apache.org/repos/asf/incubator/kafka/trunk@1207645 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
Jun Rao 2011-11-28 21:56:14 +00:00
parent cb2564c45e
commit 078bd591e1
2 changed files with 6 additions and 3 deletions
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4
core/src/main/scala/kafka/consumer/ConsumerConfig.scala
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@ -30,6 +30,7 @@ object ConsumerConfig {
val AutoCommit = true
val AutoCommitInterval = 10 * 1000
val MaxQueuedChunks = 100
val MaxRebalanceRetries = 4
val AutoOffsetReset = OffsetRequest.SmallestTimeString
val ConsumerTimeoutMs = -1
val MirrorTopicsWhitelist = ""
@ -77,6 +78,9 @@ class ConsumerConfig(props: Properties) extends ZKConfig(props) {
/** max number of messages buffered for consumption */
val maxQueuedChunks = Utils.getInt(props, "queuedchunks.max", MaxQueuedChunks)
/** max number of retries during rebalance */
val maxRebalanceRetries = Utils.getInt(props, "rebalance.retries.max", MaxRebalanceRetries)
/* what to do if an offset is out of range.
smallest : automatically reset the offset to the smallest offset
largest : automatically reset the offset to the largest offset

5
core/src/main/scala/kafka/consumer/ZookeeperConsumerConnector.scala
View File

@ -67,7 +67,6 @@ import kafka.common.InvalidConfigException
*
*/
private[kafka] object ZookeeperConsumerConnector {
val MAX_N_RETRIES = 4
val shutdownCommand: FetchedDataChunk = new FetchedDataChunk(null, null, -1L)
}
@ -424,7 +423,7 @@ private[kafka] class ZookeeperConsumerConnector(val config: ConsumerConfig,
def syncedRebalance() {
rebalanceLock synchronized {
for (i <- 0 until ZookeeperConsumerConnector.MAX_N_RETRIES) {
for (i <- 0 until config.maxRebalanceRetries) {
info("begin rebalancing consumer " + consumerIdString + " try #" + i)
var done = false
try {
@ -447,7 +446,7 @@ private[kafka] class ZookeeperConsumerConnector(val config: ConsumerConfig,
}
}
throw new RuntimeException(consumerIdString + " can't rebalance after " + ZookeeperConsumerConnector.MAX_N_RETRIES +" retires")
throw new RuntimeException(consumerIdString + " can't rebalance after " + config.maxRebalanceRetries +" retries")
}
private def rebalance(): Boolean = {