Hi Stanislav,
Thanks for running this release! To verify, I: - Built from source using Java 11 with both: - - the 3.7.0-rc2 tag on GitHub - - the kafka-3.7.0-src.tgz artifact from https://home.apache.org/~stanislavkozlovski/kafka-3.7.0-rc2/ - Checked signatures and checksums - Ran the quickstart using both: - - The kafka_2.13-3.7.0.tgz artifact from https://home.apache.org/~stanislavkozlovski/kafka-3.7.0-rc2/ with Java 11 and Scala 13 in KRaft mode - - Our shiny new broker Docker image, apache/kafka:3.7.0-rc2 - Ran all unit tests - Ran all integration tests for Connect and MM2 I found two minor areas for concern: 1. (Possibly a blocker) When running the quickstart, I noticed this ERROR-level log message being emitted frequently (not not every time) when I killed my console consumer via ctrl-C: > [2024-01-12 11:00:31,088] ERROR [Consumer clientId=console-consumer, groupId=console-consumer-74388] Unable to find FetchSessionHandler for node 1. Ignoring fetch response (org.apache.kafka.clients.consumer.internals.AbstractFetch) I see that this error message is already reported in https://issues.apache.org/jira/browse/KAFKA-16029. I think we should prioritize fixing it for this release. I know it's probably benign but it's really not a good look for us when basic operations log error messages, and it may give new users some headaches. 2. (Probably not a blocker) The following unit tests failed the first time around, and all of them passed the second time I ran them: - (clients) ClientUtilsTest.testParseAndValidateAddressesWithReverseLookup() - (clients) SelectorTest.testConnectionsByClientMetric() - (clients) Tls13SelectorTest.testConnectionsByClientMetric() - (connect) TopicAdminTest.retryEndOffsetsShouldRetryWhenTopicNotFound (I thought I fixed this one! 🤬🤬) - (core) ProducerIdManagerTest.testUnrecoverableErrors(Errors)[2] Thanks again for your work on this release, and congratulations to Kafka Streams for having zero flaky unit tests during my highly-experimental single laptop run! Cheers, Chris On Thu, Jan 11, 2024 at 1:33 PM Stanislav Kozlovski <stanis...@confluent.io.invalid> wrote: > Hello Kafka users, developers, and client-developers, > > This is the first candidate for release of Apache Kafka 3.7.0. > > Note it's named "RC2" because I had a few "failed" RCs that I had > cut/uploaded but ultimately had to scrap prior to announcing due to new > blockers arriving before I could even announce them. > > Further - I haven't yet been able to set up the system tests successfully. > And the integration/unit tests do have a few failures that I have to spend > time triaging. I would appreciate any help in case anyone notices any tests > failing that they're subject matters experts in. Expect me to follow up in > a day or two with more detailed analysis. > > Major changes include: > - Early Access to KIP-848 - the next generation of the consumer rebalance > protocol > - KIP-858: Adding JBOD support to KRaft > - KIP-714: Observability into Client metrics via a standardized interface > > Check more information in the WIP blog post: > https://github.com/apache/kafka-site/pull/578 > > Release notes for the 3.7.0 release: > > https://home.apache.org/~stanislavkozlovski/kafka-3.7.0-rc2/RELEASE_NOTES.html > > *** Please download, test and vote by Thursday, January 18, 9am PT *** > > Usually these deadlines tend to be 2-3 days, but due to this being the > first RC and the tests not having ran yet, I am giving it a bit more time. > > Kafka's KEYS file containing PGP keys we use to sign the release: > https://kafka.apache.org/KEYS > > * Release artifacts to be voted upon (source and binary): > https://home.apache.org/~stanislavkozlovski/kafka-3.7.0-rc2/ > > * Docker release artifact to be voted upon: > apache/kafka:3.7.0-rc2 > > * Maven artifacts to be voted upon: > https://repository.apache.org/content/groups/staging/org/apache/kafka/ > > * Javadoc: > https://home.apache.org/~stanislavkozlovski/kafka-3.7.0-rc2/javadoc/ > > * Tag to be voted upon (off 3.7 branch) is the 3.7.0 tag: > https://github.com/apache/kafka/releases/tag/3.7.0-rc2 > > * Documentation: > https://kafka.apache.org/37/documentation.html > > * Protocol: > https://kafka.apache.org/37/protocol.html > > * Successful Jenkins builds for the 3.7 branch: > Unit/integration tests: > https://ci-builds.apache.org/job/Kafka/job/kafka/job/3.7/58/ > There are failing tests here. I have to follow up with triaging some of > the failures and figuring out if they're actual problems or simply flakes. > > System tests: https://jenkins.confluent.io/job/system-test-kafka/job/3.7/ > > No successful system test runs yet. I am working on getting the job to run. > > * Successful Docker Image Github Actions Pipeline for 3.7 branch: > Attached are the scan_report and report_jvm output files from the Docker > Build run: > https://github.com/apache/kafka/actions/runs/7486094960/job/20375761673 > > And the final docker image build job - Docker Build Test Pipeline: > https://github.com/apache/kafka/actions/runs/7486178277 > > The image is apache/kafka:3.7.0-rc2 - > https://hub.docker.com/layers/apache/kafka/3.7.0-rc2/images/sha256-5b4707c08170d39549fbb6e2a3dbb83936a50f987c0c097f23cb26b4c210c226?context=explore > > /************************************** > > Thanks, > Stanislav Kozlovski >
