Hi Josep, I found this blocker regression: https://issues.apache.org/jira/browse/KAFKA-17150 Summary: Connector configurations that specified converters with aliases (e.g. JsonConverter instead of org.apache.kafka.connect.json.JsonConverter) previously worked, and in this RC they throw validation exceptions and are unable to start/run. Severity: This would take tasks offline completely until the workers are downgraded or the connectors are reconfigured with full class names Impact: Aliases are commonly used in demos, and slightly less commonly used in production environments. It is by no means a demo-only feature, and I would expect this to break at least one production workload. Risk: I've opened a PR to resolve it here: https://github.com/apache/kafka/pull/16608 . We've already solved this bug once before, so it seems low-risk to widen the scope of the original fix to cover this new case.
I found this apparent bug, but as it doesn't appear to be a regression and has very low severity, I don't think it's a blocker on its own: https://issues.apache.org/jira/browse/KAFKA-17148 If we're rolling a new RC, hopefully we can include this if it's resolved quickly. I also performed the following successful verifications: 1. Verified that protected members don't appear in the generated javadocs (KAFKA-14839) 2. Verified that Connect Distributed can start against a Kraft cluster 3. Verified that plugin scanning doesn't throw errors with jackson (KAFKA-17111) 4. Verified that the allowed.paths configuration works for DirectoryConfigProvider (KIP-993) Unfortunately due to the blocker regression, I think I'll have to -1 (binding) this RC. Sorry! Thanks, Greg On Tue, Jul 16, 2024 at 1:32 PM Jakub Scholz <ja...@scholz.cz> wrote: > +1 (non-binding). I used the staged Scala 2.13 binaries and the staged > Maven artifacts. All seems to work fine. Thanks! > > Jakub > > On Mon, Jul 15, 2024 at 5:53 PM Josep Prat <josep.p...@aiven.io.invalid> > wrote: > > > Hello Kafka users, developers and client-developers, > > > > This is the second release candidate for Apache Kafka 3.8.0. > > > > Some of the major features included in this release are: > > * KIP-1028: Docker Official Image for Apache Kafka > > * KIP-974: Docker Image for GraalVM based Native Kafka Broker > > * KIP-1036: Extend RecordDeserializationException exception > > * KIP-1019: Expose method to determine Metric Measurability > > * KIP-1004: Enforce tasks.max property in Kafka Connect > > * KIP-989: Improved StateStore Iterator metrics for detecting leaks > > * KIP-993: Allow restricting files accessed by File and Directory > > ConfigProviders > > * KIP-924: customizable task assignment for Streams > > * KIP-813: Shareable State Stores > > * KIP-719: Deprecate Log4J Appender > > * KIP-390: Support Compression Level > > * KIP-1018: Introduce max remote fetch timeout config for > > DelayedRemoteFetch requests > > * KIP-1037: Allow WriteTxnMarkers API with Alter Cluster Permission > > * KIP-1047 Introduce new org.apache.kafka.tools.api.Decoder to replace > > kafka.serializer.Decoder > > * KIP-899: Allow producer and consumer clients to rebootstrap > > > > Release notes for the 3.8.0 release: > > https://home.apache.org/~jlprat/kafka-3.8.0-rc1/RELEASE_NOTES.html > > > > **** Please download, test and vote by Thursday, July 18th, 12pm PT* > > > > 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/~jlprat/kafka-3.8.0-rc1/ > > > > * Docker release artifact to be voted upon(apache/kafka-native is > supported > > from 3.8+ release.): > > apache/kafka:3.8.0-rc1 > > apache/kafka-native:3.8.0-rc1 > > > > * Maven artifacts to be voted upon: > > https://repository.apache.org/content/groups/staging/org/apache/kafka/ > > > > * Javadoc: > > https://home.apache.org/~jlprat/kafka-3.8.0-rc1/javadoc/ > > > > * Tag to be voted upon (off 3.8 branch) is the 3.8.0 tag: > > https://github.com/apache/kafka/releases/tag/3.8.0-rc1 > > > > Once https://github.com/apache/kafka-site/pull/608 is merged. You will > be > > able to find the proper documentation under kafka.apache.org. > > * Documentation: > > https://kafka.apache.org/38/documentation.html > > > > * Protocol: > > https://kafka.apache.org/38/protocol.html > > > > * Successful Jenkins builds for the 3.8 branch:Unit/integration tests: > > > > > https://ci-builds.apache.org/blue/organizations/jenkins/Kafka%252Fkafka/detail/3.8/67/ > > (Some known flaky tests and builds from 64 to 68 show tests passing at > > least once). Additionally, this is the CI run for the changes between RC0 > > and RC1: > > > > > https://ci-builds.apache.org/blue/organizations/jenkins/Kafka%2Fkafka-pr/detail/PR-16593/1/pipeline/ > > > > System tests: (Same as before) > > > > > https://confluent-open-source-kafka-branch-builder-system-test-results.s3-us-west-2.amazonaws.com/trunk/2024-07-10--001.f1f05b43-3574-45cb-836e-8968f02d722f--1720631619--apache--3.8--4ecbb75c1f/report.html > > > > * Successful Docker Image Github Actions Pipeline for 3.8 branch: > > Docker Build Test Pipeline (JVM): > > https://github.com/apache/kafka/actions/runs/9941446092 > > Docker Build Test Pipeline (Native): > > https://github.com/apache/kafka/actions/runs/9941449561 > > > > Best, > > -- > > [image: Aiven] <https://www.aiven.io> > > > > *Josep Prat* > > Open Source Engineering Director, *Aiven* > > josep.p...@aiven.io | +491715557497 > > aiven.io <https://www.aiven.io> | < > https://www.facebook.com/aivencloud > > > > > <https://www.linkedin.com/company/aiven/> < > > https://twitter.com/aiven_io> > > *Aiven Deutschland GmbH* > > Alexanderufer 3-7, 10117 Berlin > > Geschäftsführer: Oskari Saarenmaa & Hannu Valtonen > > Amtsgericht Charlottenburg, HRB 209739 B > > >
