Use delivery timeout instead of retries when possible and remove various TODOs associated with completion of KIP-91.
Reviewers: Ismael Juma <ismael@juma.me.uk>, Guozhang Wang <wangguoz@gmail.com>
ZooKeeper client from version 3.4.13 doesn't handle connections to localhost very well. If ZooKeeper is started on 127.0.0.1 on a machine that has both ipv4 and ipv6 and a client is created using localhost rather than the IP address in the connection string, ZooKeeper client attempts to connect to ipv4 or ipv6 randomly with a fixed one second backoff if connection fails. Use 127.0.0.1 instead of localhost in streams tests to avoid intermittent test failures due to ZK client connection timeouts if ipv6 is chosen in consecutive address selections. Also add note to upgrade docs for 2.0.0.
Reviewers: Ismael Juma <github@juma.me.uk>, Matthias J. Sax <matthias@confluent.io>
This patch contains the improved offset expiration semantics proposed in KIP-211. Committed offsets will not be expired as long as a group is active. Once all members have left the group, then offsets will be expired after the timeout configured by `offsets.retention.minutes`. Note that the optimization for early expiration of unsubscribed topics will be implemented in a separate patch.
- Removed Scala consumers (`SimpleConsumer` and `ZooKeeperConsumerConnector`)
and their tests.
- Removed Scala request/response/message classes.
- Removed any mention of new consumer or new producer in the code
with the exception of MirrorMaker where the new.consumer option was
never deprecated so we have to keep it for now. The non-code
documentation has not been updated either, that will be done
separately.
- Removed a number of tools that only made sense in the context
of the Scala consumers (see upgrade notes).
- Updated some tools that worked with both Scala and Java consumers
so that they only support the latter (see upgrade notes).
- Removed `BaseConsumer` and related classes apart from `BaseRecord`
which is used in `MirrorMakerMessageHandler`. The latter is a pluggable
interface so effectively public API.
- Removed `ZkUtils` methods that were only used by the old consumers.
- Removed `ZkUtils.registerBroker` and `ZKCheckedEphemeral` since
the broker now uses the methods in `KafkaZkClient` and no-one else
should be using that method.
- Updated system tests so that they don't use the Scala consumers except
for multi-version tests.
- Updated LogDirFailureTest so that the consumer offsets topic would
continue to be available after all the failures. This was necessary for it
to work with the Java consumer.
- Some multi-version system tests had not been updated to include
recently released Kafka versions, fixed it.
- Updated findBugs and checkstyle configs not to refer to deleted
classes and packages.
Reviewers: Dong Lin <lindong28@gmail.com>, Manikumar Reddy <manikumar.reddy@gmail.com>
Support configuration of dynamic broker configs in ZooKeeper before starting brokers using ConfigCommand. This will allow password configs to be encrypted and stored in ZooKeeper, without requiring clear passwords in server.properties to bootstrap the broker first.
Reviewers: Jason Gustafson <jason@confluent.io>
We might decide to drop certain message batches during down-conversion because older clients might not be able to interpret them. One such example is control batches which are typically removed by the broker if down-conversion to V0 or V1 is required. This patch makes sure the chunked down-conversion implementation is able to handle such cases.
This patch changes the default `request.timeout.ms` of the consumer to 30 seconds. Additionally, it adds logic to `NetworkClient` and related to components to support timeouts at the request level. We use this to handle the special case of the JoinGroup request, which may block for as long as the value configured by `max.poll.interval.ms`.
Reviewers: Ismael Juma <ismael@juma.me.uk>, Guozhang Wang <guozhang@confluent.io>
Adds a configuration that specifies the default timeout for KafkaConsumer APIs that could block. This was introduced in KIP-266.
Reviewers: Satish Duggana <satish.duggana@gmail.com>, Jason Gustafson <jason@confluent.io>
Keep Literal ACLs on the old paths, using the old formats, to maintain backwards compatibility.
Have Prefixed, and any latter types, go on new paths, using JSON, (old brokers are not aware of them)
Add checks to reject any adminClient requests to add prefixed acls before the cluster is fully upgraded.
Colin Patrick McCabe <colin@cmccabe.xyz>, Jun Rao <junrao@gmail.com>
It takes O(n^2) time to instantiate a mbean with n attributes which can be very slow if the number of attributes of this mbean is large. This PR removes metrics whose number of attributes can grow with the number of partitions in the cluster to fix the performance issue. These metrics have already been marked for removal in 2.0 by KIP-225.
Author: Dong Lin <lindong28@gmail.com>
Reviewers: Ismael Juma <ismael@juma.me.uk>
Closes#5172 from lindong28/remove-deprecated-metrics
Reviewers: Colin Patrick McCabe <colin@cmccabe.xyz>, Jun Rao <junrao@gmail.com>
Co-authored-by: Piyush Vijay <pvijay@apple.com>
Co-authored-by: Andy Coates <big-andy-coates@users.noreply.github.com>
- CreateTopicsRequest now requires Create auth on Topic resource
or Create on Cluster resource.
- AclCommand --producer option adjusted
- Existing unit and Integration tests adjusted accordingly and
new tests added.
Reviewers: Manikumar Reddy <manikumar.reddy@gmail.com>, Ismael Juma <ismael@juma.me.uk>
Co-authored-by: Edoardo Comar <ecomar@uk.ibm.com>
Co-authored-by: Mickael Maison <mickael.maison@gmail.com>
Reviewers: Viktor Somogyi <viktorsomogyi@gmail.com>, Vahid Hashemian <vahidhashemian@us.ibm.com>, Manikumar Reddy <manikumar.reddy@gmail.com>, Ismael Juma <ismael@juma.me.uk>
- Removed internal kafka.admin.AdminClient.deleteRecordsBefore since it's
no longer used.
- Removed redundant tests and rewrote non redundant ones to use the Java
AdminClient.
Reviewers: Viktor Somogyi <viktor.somogyi@cloudera.com>, Manikumar Reddy <manikumar.reddy@gmail.com>, Ismael Juma <ismael@juma.me.uk>
This patch contains a few follow-up improvements/cleanup for KIP-266:
- Add upgrade notes
- Add missing `commitSync(Duration)` API
- Improve timeout messages and fix some naming inconsistencies
- Various small cleanups
Reviewers: John Roesler <john@confluent.io>, Guozhang Wang <wangguoz@gmail.com>
This implements KIP-219, where a broker returns a response with throttle time on
quota violation immediately after processing the corresponding request. After
the response is sent out, the broker will keep the channel muted until the
throttle time is over. Also, on receiving a response with throttle time, client
will block outgoing communication to the broker for the specified throttle time.
See PR 4830, 5064 and 5094 for all the review history
Author: Jon Lee <jonlee@jonlee-ld1.linkedin.biz>
Reviewers: Jun Rao <junrao@gmail.com>, Rajini Sivaram <rajinisivaram@googlemail.com>, Ismael Juma <ismael@juma.me.uk>, Dong Lin <lindong28@gmail.com>
Closes#5064 from jonlee2/kip-219
Implementation of [KIP-174](https://cwiki.apache.org/confluence/display/KAFKA/KIP-174+-+Deprecate+and+remove+internal+converter+configs+in+WorkerConfig)
Configuration properties 'internal.key.converter' and 'internal.value.converter'
are deprecated, and default to org.apache.kafka.connect.json.JsonConverter.
Warnings are logged if values are specified for either, or if properties that
appear to configure instances of internal converters (i.e., ones prefixed with
either 'internal.key.converter.' or 'internal.value.converter.') are given.
The property 'schemas.enable' is also defaulted to false for internal
JsonConverter instances (both for keys and values) if it isn't specified.
Documentation and code have also been updated with deprecation notices and
annotations, respectively.
Unit tests have been updated in `PluginsTest` to account for the new defaults for `schemas.enable` for internal key/value converters, and to ensure that (for the time being), internal key/value converters are still configurable despite being deprecated.
Author: Chris Egerton <chrise@confluent.io>
Author: Ewen Cheslack-Postava <me@ewencp.org>
Reviewers: Randall Hauch <rhauch@gmail.com>, Ewen Cheslack-Postava <ewen@confluent.io>
Closes#4693 from C0urante/kafka-5540
* Removed Scala producers, request classes, kafka.tools.ProducerPerformance, encoders,
tests.
* Updated ConsoleProducer to remove Scala producer support (removed `BaseProducer`
and several options that are not used by the Java producer).
* Updated a few Scala consumer tests to use the new producer (including a minor
refactor of `produceMessages` methods in `TestUtils`).
* Updated `ClientUtils.fetchTopicMetadata` to use `SimpleConsumer` instead of
`SyncProducer`.
* Removed `TestKafkaAppender` as it looks useless and it defined an `Encoder`.
* Minor import clean-ups
No new tests added since behaviour should remain the same after these changes.
Author: Ismael Juma <ismael@juma.me.uk>
Reviewers: Manikumar Reddy O <manikumar.reddy@gmail.com>, Dong Lin <lindong28@gmail.com>
Closes#5045 from ijuma/kafka-6921-remove-old-producer
* Set --source, --target and --release to 1.8.
* Build Scala 2.12 by default.
* Remove some conditionals in the build file now that Java 8
is the minimum version.
* Bump the version of Jetty, Jersey and Checkstyle (the newer
versions require Java 8).
* Fixed issues uncovered by the new version if Checkstyle.
* A couple of minor updates to handle an incompatible source
change in the new version of Jetty.
* Add dependency to jersey-hk2 to fix failing tests caused
by Jersey upgrade.
* Update release script to use Java 8 and to take into account
that Scala 2.12 is now built by default.
* While we're at it, bump the version of Gradle, Gradle plugins,
ScalaLogging, JMH and apache directory api.
* Minor documentation updates including the readme and upgrade
notes. A number of Streams Java 7 examples can be removed
subsequently.
Implementation of KIP-279 as described here: https://cwiki.apache.org/confluence/display/KAFKA/KIP-279%3A+Fix+log+divergence+between+leader+and+follower+after+fast+leader+fail+over
In summary:
- Added leader_epoch to OFFSET_FOR_LEADER_EPOCH_RESPONSE
- Leader replies with the pair( largest epoch less than or equal to the requested epoch, the end offset of this epoch)
- If Follower does not know about the leader epoch that leader replies with, it truncates to the end offset of largest leader epoch less than leader epoch that leader replied with, and sends another OffsetForLeaderEpoch request. That request contains the largest leader epoch less than leader epoch that leader replied with.
Reviewers: Dong Lin <lindong28@gmail.com>, Jun Rao <junrao@gmail.com>
Updated the upgrade doc as well since we do not have an overloaded function without the deprecated parameter before. Also renamed the 1.2 release version to 2.0.
Reviewers: Bill Bejeck <bill@confluent.io>, Matthias J. Sax <matthias@confluent.io>
This patch fixes a bug in the validation of the inter-broker protocol and the message format version. We should allow the configured message format api version to be greater than the inter-broker protocol api version as long as the actual message format versions are equal. For example, if the message format version is set to 1.0, it is fine for the inter-broker protocol version to be 0.11.0 because they both use message format v2.
I have added a unit test which checks compatibility for all combinations of the message format version and the inter-broker protocol version.
Author: Jason Gustafson <jason@confluent.io>
Reviewers: Ismael Juma <ismael@juma.me.uk>
Closes#4583 from hachikuji/KAFKA-6328-REOPENED
Enable deep-iteration option when print-data-log is enabled in DumpLogSegments. Otherwise data is not printed.
Reviewers: Jason Gustafson <jason@confluent.io>, Ismael Juma <ismael@juma.me.uk>
**[KIP-145](https://cwiki.apache.org/confluence/display/KAFKA/KIP-145+-+Expose+Record+Headers+in+Kafka+Connect) has been accepted, and this PR implements KIP-145 except without the SMTs.**
Changed the Connect API and runtime to support message headers as described in [KIP-145](https://cwiki.apache.org/confluence/display/KAFKA/KIP-145+-+Expose+Record+Headers+in+Kafka+Connect).
The new `Header` interface defines an immutable representation of a Kafka header (key-value pair) with support for the Connect value types and schemas. This interface provides methods for easily converting between many of the built-in primitive, structured, and logical data types.
The new `Headers` interface defines an ordered collection of headers and is used to track all headers associated with a `ConnectRecord` (and thus `SourceRecord` and `SinkRecord`). This does allow multiple headers with the same key. The `Headers` contains methods for adding, removing, finding, and modifying headers. Convenience methods allow connectors and transforms to easily use and modify the headers for a record.
A new `HeaderConverter` interface is also defined to enable the Connect runtime framework to be able to serialize and deserialize headers between the in-memory representation and Kafka’s byte[] representation. A new `SimpleHeaderConverter` implementation has been added, and this serializes to strings and deserializes by inferring the schemas (`Struct` header values are serialized without the schemas, so they can only be deserialized as `Map` instances without a schema.) The `StringConverter`, `JsonConverter`, and `ByteArrayConverter` have all been extended to also be `HeaderConverter` implementations. Each connector can be configured with a different header converter, although by default the `SimpleHeaderConverter` is used to serialize header values as strings without schemas.
Unit and integration tests are added for `ConnectHeader` and `ConnectHeaders`, the two implementation classes for headers. Additional test methods are added for the methods added to the `Converter` implementations. Finally, the `ConnectRecord` object is already used heavily, so only limited tests need to be added while quite a few of the existing tests already cover the changes.
Author: Randall Hauch <rhauch@gmail.com>
Reviewers: Arjun Satish <arjun@confluent.io>, Ted Yu <yuzhihong@gmail.com>, Magesh Nandakumar <magesh.n.kumar@gmail.com>, Konstantine Karantasis <konstantine@confluent.io>, Ewen Cheslack-Postava <ewen@confluent.io>
Closes#4319 from rhauch/kafka-5142-b
This is the implementation of KIP-225.
It marks the previous metrics as deprecated in the documentation and adds new metrics using tags.
Testing verifies that both the new and the old metric report the same value.
Author: cmolter <cmolter@apple.com>
Reviewers: Jiangjie (Becket) Qin <becket.qin@gmail.com>
Closes#4362 from lahabana/kafka-5890
It should only depend on slf4j-api (like kafka-clients). The
release tarball still includes log4j and slf4j-log4j12.
Manually verified that there are no duplicate dependencies
in the release tarball and `./gradlew core:dependencies`
looks good.
Author: Ismael Juma <ismael@juma.me.uk>
Reviewers: Rajini Sivaram <rajinisivaram@googlemail.com>
Closes#4297 from ijuma/kafka-6317-kafka-slf4j-api-only
From 0.11 to 1.0, we moved `DescribeClusterOptions timeoutMs(Integer timeoutMs)` from
DescribeClusterOptions to AbstractOptions (similarly for other Options classes). This can
cause code compiled against 0.11.0.x to fail when it is executed with 1.0 kafka-clients jar.
This patch adds back these methods to restore binary compatibility with 0.11.
Author: Dong Lin <lindong28@gmail.com>
Reviewers: Ismael Juma <ismael@juma.me.uk>
Closes#4257 from lindong28/KAFKA-6174
The upgrade instructions concerning the message format versions did not account
for upgrades from versions prior to 0.11.0.x.
Author: Jason Gustafson <jason@confluent.io>
Reviewers: Ismael Juma <ismael@juma.me.uk>
Closes#4256 from hachikuji/KAFKA-6328
Since we removed the unused `TRACE` option from `SecurityProtocol`, it now seems safer to expose it from `AuthenticationContext`. Additionally this patch exposes javadocs under security.auth and relocates the `Login` and `AuthCallbackHandler` to a non-public package.
Author: Jason Gustafson <jason@confluent.io>
Reviewers: Rajini Sivaram <rajinisivaram@googlemail.com>, Manikumar Reddy <manikumar.reddy@gmail.com>, Ismael Juma <ismael@juma.me.uk>
Closes#3863 from hachikuji/use-security-protocol-in-auth-context
This is less likely to break custom metric reporters and since the method
is deprecated, people will be warned about this potential issue.
Author: Ismael Juma <ismael@juma.me.uk>
Reviewers: Ewen Cheslack-Postava <ewen@confluent.io>, Xavier Léauté <xavier@confluent.io>
Closes#3996 from ijuma/avoid-exception-in-measurable-value
Adds new metrics to support health checks:
1. Error rates for each request type, per-error code
2. Request size and temporary memory size
3. Message conversion rate and time
4. Successful and failed authentication rates
5. ZooKeeper latency and status
6. Client version
Author: Rajini Sivaram <rajinisivaram@googlemail.com>
Reviewers: Ismael Juma <ismael@juma.me.uk>
Closes#3705 from rajinisivaram/KAFKA-5746-new-metrics
Make documentation consistent across methods and throw
IllegalStateException instead of IllegalArgumentException in
some cases.
Also include a couple of minor fixes in upgrade.html.
Author: Dong Lin <lindong28@gmail.com>
Reviewers: Ismael Juma <ismael@juma.me.uk>
Closes#3781 from lindong28/minor-admin-client-comment
Author: Mickael Maison <mickael.maison@gmail.com>
Reviewers: Ismael Juma <ismael@juma.me.uk>, Jason Gustafson <jason@confluent.io>
Closes#3036 from mimaison/KAFKA-3356
Developed with edoardocomar
Author: Mickael Maison <mickael.maison@gmail.com>
Reviewers: Edoardo Comar <ecomar@uk.ibm.com>, Rajini Sivaram <rajinisivaram@googlemail.com>
Closes#3906 from mimaison/KAFKA-5735
1. Core concepts (added the stream time definition), upgrade guide and developer guide.
2. Related Java docs changes.
Author: Guozhang Wang <wangguoz@gmail.com>
Reviewers: Bill Bejeck <bill@confluent.io>, Damian Guy <damian.guy@gmail.com>
Closes#3732 from guozhangwang/KMinor-kip138-docs
1. Add upgrade section for 1.0.0, including Streams API changes section.
2. Add metrics name changes section.
Author: Guozhang Wang <wangguoz@gmail.com>
Reviewers: Eno Thereska <eno.thereska@gmail.com>, Damian Guy <damian.guy@gmail.com>
Closes#3687 from guozhangwang/KMinor-metrics-upgrade-guide
These handlers were previously used on the broker to handle uncaught exceptions, but now the broker users the new Java request objects exclusively.
Author: Jason Gustafson <jason@confluent.io>
Reviewers: Ismael Juma <ismael@juma.me.uk>
Closes#3646 from hachikuji/remove-old-request-error-handlers
This is important because Bits.reserveMemory calls System.gc() hoping to free native
memory in order to avoid throwing an OutOfMemoryException. This call is currently
a no-op due to -XX:+DisableExplicitGC.
It's worth mentioning that -XX:MaxDirectMemorySize can be used to increase the
amount of native memory available for allocation of direct byte buffers.
Author: Ismael Juma <ismael@juma.me.uk>
Reviewers: Apurva Mehta <apurva@confluent.io>, Manikumar Reddy <manikumar.reddy@gmail.com>, Jason Gustafson <jason@confluent.io>
Closes#3371 from ijuma/kafka-5470-explicit-gc-invokes-concurrent
Author: Dong Lin <lindong28@gmail.com>
Reviewers: Jiangjie Qin <becket.qin@gmail.com>, Jun Rao <junrao@gmail.com>, Ismael Juma <ismael@juma.me.uk>, Onur Karaman <okaraman@linkedin.com>
Closes#2929 from lindong28/KAFKA-4763
For topics that support timestamp search, if no offset is found for a partition, the partition should still be included in the result with a `null` offset value. This `KafkaConsumer` method currently excludes such partitions from the result.
Author: Vahid Hashemian <vahidhashemian@us.ibm.com>
Reviewers: Ismael Juma <ismael@juma.me.uk>, Jason Gustafson <jason@confluent.io>
Closes#3460 from vahidhashemian/KAFKA-5534
We had originally increased Snappy’s block size as part of KAFKA-3704. However,
we had some issues with excessive memory usage in the producer and we reverted
it in 7c6ee8d5e.
After more investigation, we fixed the underlying reason why memory usage seemed
to grow much more than expected via KAFKA-3747 (included in 0.10.0.1).
In 0.10.2, we changed the broker to use the same classes as the producer and the
broker’s block size for Snappy was changed from 32 KB to 1KB. As reported in
KAFKA-5236, the on disk size is, in some cases, 50% larger when the data is compressed
with 1 KB instead of 32 KB as the block size.
As discussed in KAFKA-3704, it may be worth making this configurable and/or allocate
the compression buffers from the producer pool. However, for 0.11.0.0, I think the
simplest thing to do is to default to 32 KB for Snappy (the default if no block size
is provided).
I also increased the Gzip buffer size. 1 KB is too small and the default is smaller
still (512 bytes). 8 KB (which is the default buffer size for BufferedOutputStream)
seemed like a reasonable default.
Author: Ismael Juma <ismael@juma.me.uk>
Reviewers: Jason Gustafson <jason@confluent.io>
Closes#3205 from ijuma/kafka-5236-snappy-block-size
Author: Matthias J. Sax <matthias@confluent.io>
Reviewers: Ismael Juma, Ewen Chesklack-Postava, Bill Bejeck, Guozhang Wang
Closes#3194 from mjsax/minor-update-docs-for-kip-123
Add a new entry in upgrade.html for `group.initial.rebalance.delay.ms`
Author: Damian Guy <damian.guy@gmail.com>
Reviewers: Ismael Juma <ismael@juma.me.uk>, Guozhang Wang <wangguoz@gmail.com>
Closes#3189 from dguy/relabance-delay
Author: Jason Gustafson <jason@confluent.io>
Reviewers: Apurva Mehta <apurva@confluent.io>, Ismael Juma <ismael@juma.me.uk>
Closes#3123 from hachikuji/KAFKA-4935
Update upgrade.html
Raising this now, as KIP-118 is pulled from release as such submitting this without java 8 changes.
As per remaining review comment from https://github.com/apache/kafka/pull/2772, updating the upgrade notes.
Author: Michael André Pearce <michael.andre.pearce@me.com>
Author: Michael Andre Pearce <Michael.Andre.Pearce@me.com>
Reviewers: Jiangjie Qin <becket.qin@gmail.com>, Ismael Juma <ismael@juma.me.uk>
Closes#2991 from michaelandrepearce/KIP-82
This only removes deprecated methods,
fields and constructors in a small number of classes.
Deprecated producer configs is tracked via KAFKA-3353
and the old clients and related (tools, etc.) won't
be removed in 0.11.0.0.
Author: Ismael Juma <ismael@juma.me.uk>
Reviewers: Jason Gustafson <jason@confluent.io>
Closes#2995 from ijuma/kafka-3763-remove-deprecated-0.11
These configs have been deprecated since 0.9.0.0:
block.on.buffer.full, metadata.fetch.timeout.ms and timeout.ms
Author: Ismael Juma <ismael@juma.me.uk>
Reviewers: Jason Gustafson <jason@confluent.io>
Closes#2987 from ijuma/kafka-3353-remove-deprecated-producer-configs
Add a default log retention policy to keep GC logs from growing too large
Author: Ryan P <ryan.n.pridgeon@gmail.com>
Reviewers: Ismael Juma <ismael@juma.me.uk>
Closes#1431 from rnpridgeon/KAFKA-3754
Introduced in PR #2824. Already fixed in the
website github.
Author: Gwen Shapira <cshapi@gmail.com>
Reviewers: Ismael Juma <ismael@juma.me.uk>
Closes#2844 from gwenshap/docs-hotfix
(cherry picked from commit 5f728532ac)
Signed-off-by: Ismael Juma <ismael@juma.me.uk>
Author: Dong Lin <lindong28@gmail.com>
Reviewers: Jun Rao <junrao@gmail.com>, Ismael Juma <ismael@juma.me.uk>, Jiangjie Qin <becket.qin@gmail.com>
Closes#2476 from lindong28/KAFKA-4586
Author: Jason Gustafson <jason@confluent.io>
Reviewers: Jun Rao <junrao@gmail.com>, Apurva Mehta <apurva@confluent.io>, Guozhang Wang <wangguoz@gmail.com>, Ismael Juma <ismael@juma.me.uk>
Closes#2614 from hachikuji/exactly-once-message-format
Author: Jiangjie Qin <becket.qin@gmail.com>
Reviewers: Jun Rao <junrao@gmail.com>, Ismael Juma <ismael@juma.me.uk>
Closes#2544 from becketqin/KAFKA-4340_follow_up
1. Added an architecture section.
2. Added a configuration / execution sub-section to developer guide.
Minor tweaks and a bunch of missing fixes from `kafka-site` repo.
Author: Guozhang Wang <wangguoz@gmail.com>
Reviewers: Matthias J. Sax <matthias@confluent.io>, Derrick Or <derrickor@gmail.com>, Ewen Cheslack-Postava <ewen@confluent.io>
Closes#2488 from guozhangwang/KMinor-streams-docs-second-pass
Author: Matthias J. Sax <matthias@confluent.io>
Reviewers: Ismael Juma, Will Marshall, Damian Guy, Guozhang Wang, Michael G. Noll
Closes#2461 from mjsax/addStreamsUpdateSecton
Kafka brokers have a config called "offsets.topic.replication.factor" that specify the replication factor for the "__consumer_offsets" topic. The problem is that this config isn't being enforced. If an attempt to create the internal topic is made when there are fewer brokers than "offsets.topic.replication.factor", the topic ends up getting created anyway with the current number of live brokers. The current behavior is pretty surprising when you have clients or tooling running as the cluster is getting setup. Even if your cluster ends up being huge, you'll find out much later that __consumer_offsets was setup with no replication.
The cluster not meeting the "offsets.topic.replication.factor" requirement on the internal topic is another way of saying the cluster isn't fully setup yet.
The right behavior should be for "offsets.topic.replication.factor" to be enforced. Topic creation of the internal topic should fail with GROUP_COORDINATOR_NOT_AVAILABLE until the "offsets.topic.replication.factor" requirement is met. This closely resembles the behavior of regular topic creation when the requested replication factor exceeds the current size of the cluster, as the request fails with error INVALID_REPLICATION_FACTOR.
Author: Onur Karaman <okaraman@linkedin.com>
Reviewers: Jason Gustafson <jason@confluent.io>, Ismael Juma <ismael@juma.me.uk>, Ewen Cheslack-Postava <ewen@confluent.io>
Closes#2177 from onurkaraman/KAFKA-3959
Author: Ismael Juma <ismael@juma.me.uk>
Reviewers: Ewen Cheslack-Postava <ewen@confluent.io>, Michael G. Noll
Closes#2445 from ijuma/kafka-4578-upgrade-notes-0.10.2
Updated the docs with changes in KAFKA-4060.
Author: Hojjat Jafarpour <hojjat@Hojjat-Jafarpours-MBP.local>
Author: Hojjat Jafarpour <hojjat@HojjatJpoursMBP.attlocal.net>
Reviewers: Ismael Juma, Matthias J. Sax, Guozhang Wang
Closes#2377 from hjafarpour/KAFKA-4060-docs-update
Author: Rajini Sivaram <rajinisivaram@googlemail.com>
Reviewers: Ismael Juma <ismael@juma.me.uk>, Jason Gustafson <jason@confluent.io>
Closes#2366 from rajinisivaram/KAFKA-4626
Manikumar Reddy O
Vahid Hashemian
Jason Gustafson
Yu Yang
Rajini Sivaram
Matthias J. Sax
Vahid Hashemian
Ismael Juma
Dhruvil Shah
Andy Coates
Dong Lin
Edoardo Comar
Paolo Patierno
Jon Lee
Chris Egerton
Guozhang Wang
Anna Povzner
Surabhi Dixit
khairy
Mickael Maison
Allen Wang
Viktor Somogyi
Ewen Cheslack-Postava
Randall Hauch
cmolter
Mickael Maison
Gwen Shapira
Matthias J. Sax
Damian Guy
Jiangjie Qin
Michael André Pearce
Ryan P
sharad-develop
Eno Thereska
Onur Karaman
Hojjat Jafarpour