Of course, here my +1 (non binding) for the release :-) On Wed, 30 Jul 2025 at 08:15, Paolo Patierno <paolo.patie...@gmail.com> wrote:
> HI, > within the Strimzi project we ran all the regression tests and everything > seems to be fine. > We had to deal with a behavioural change in Kafka 4.1. It seems that now > ELR feature is enabled by default (while it was disabled in 4.0) and when > it's enabled, you cannot change the min ISR broker configuration (but, if > enabled, it was the same with 4.0). > > Thanks, > Paolo Patierno > > On Mon, 28 Jul 2025 at 20:48, Mickael Maison <mickael.mai...@gmail.com> > wrote: > >> Hi, >> >> Quick update about the system tests. >> >> Streams: >> If I make the change suggested by Matthias, all the Streams tests pass. >> So we need to update the release process to not run into this issue. >> Either we don't only merge the RC tags into the release branch after >> the vote, or we update the logic to not expect a SNAPSHOT version. >> >> Core: >> While trying to debug >> network_degrade_test.test_rate,name=rate-1000-latency-50, I noticed it >> is also failing in my environment with 4.0.0. >> Also the test was already flaky when introduced, see >> https://github.com/apache/kafka/pull/18247#issuecomment-2550372486, so >> I think we can consider not a blocker. >> >> Thanks, >> Mickael >> >> On Sat, Jul 26, 2025 at 12:24 PM Andrew Schofield >> <andrew_schofield_j...@outlook.com> wrote: >> > >> > Hi, >> > I downloaded and tested 4.1.0 RC1. >> > >> > I successfully checked the enablement and administration of the share >> > group and streams groups features. >> > >> > I also downloaded the documentation from the pending kafka-site PR. >> > I observe that it was necessary to manually change the #include >> > directives from 40 to 41 like this: >> > >> > <!--#include virtual="41/documentation.html" --> >> > >> > Once I'd done that, I could see the 4.1 documentation as expected. >> > I guess that's part of the actual release process. >> > >> > Also checked the javadoc and that looks OK to me. >> > >> > +1 (non-binding) >> > >> > Thanks, >> > Andrew >> > >> > ________________________________________ >> > From: Kuan-Po Tseng <brandb...@gmail.com> >> > Sent: 22 July 2025 16:43 >> > To: dev@kafka.apache.org <dev@kafka.apache.org> >> > Subject: Re: [VOTE] 4.1.0 RC1 >> > >> > Hi folks, >> > >> > I tested upgrading Kafka from both 3.7.2 and 3.8.1 to 4.1.0 and >> everything >> > seems good: >> > - Three-node KRaft cluster; verified produce/consume records worked >> > correctly using `kafka-producer-perf-test.sh` and >> > `kafka-console-consumer.sh` before and after each server upgrade. >> > - After upgrading one node to 4.1.0, saw repeated `The node does not >> > support UPDATE_RAFT_VOTER` logs — expected since server with older >> versions >> > don't support this API. >> > - Once all nodes were upgraded, the message disappeared. Everything >> worked >> > as expected. >> > >> > +1 (non-binding) >> > >> > Best, >> > Kuan-Po Tseng >> > >> > On Tue, Jul 22, 2025 at 11:03 PM Chia-Ping Tsai <chia7...@gmail.com> >> wrote: >> > >> > > hi >> > > If anyone wants to test 4.1.0-RC1 without the backport fix, please >> simply >> > > configure the jdk_version to use another image. For example: >> > > >> > > jdk_version="openjdk:17-bullseye" /bin/bash tests/docker/run_tests.sh >> > > >> > > Best, >> > > Chia-Ping >> > > >> > > Josep Prat <josep.p...@aiven.io.invalid> 於 2025年7月22日 週二 下午10:56寫道： >> > > >> > > > Hi Mickael, >> > > > I don't think we need a new RC just because of these files. >> Technically >> > > > speaking these files are part of the source tarball (which we >> release), >> > > but >> > > > as they are test files, I wouldn't consider them as a blocker that >> would >> > > > grant a new RC. >> > > > >> > > > Best, >> > > > >> > > > On Tue, Jul 22, 2025 at 4:51 PM Mickael Maison < >> mickael.mai...@gmail.com >> > > > >> > > > wrote: >> > > > >> > > > > Hi, >> > > > > >> > > > > Quick update regarding the system tests. My environment is back >> but >> > > > > now we're hitting >> https://issues.apache.org/jira/browse/KAFKA-19501. >> > > > > >> > > > > Debian buster which is used in the system tests is out of support >> and >> > > > > it's apt repository has now been archived. It worked till last >> week >> > > > > but now it's gone so we get an error when building the Docker >> image. >> > > > > We had only updated trunk to use bullseye. I've just backported >> the >> > > > > fix to 4.1: >> > > > > >> > > > >> > > >> https://github.com/apache/kafka/commit/d5a3acda897890379edb8819f15b144fcea564b0 >> > > > > >> > > > > The fix is only in tests/docker/Dockerfile and >> tests/docker/ducker-ak. >> > > > > My understanding is that these files are not part of any of the >> > > > > release artifacts. >> > > > > So I'm considering keeping the RC1 artifacts and running the >> system >> > > > > tests with the fix. >> > > > > >> > > > > Let me know if my understand is incorrect, or if you'd prefer >> building >> > > > > a new RC regardless. Obviously if we find issues with RC1, we'll >> do >> > > > > another RC anyway. >> > > > > >> > > > > Thanks, >> > > > > Mickael >> > > > > >> > > > > >> > > > > >> > > > > On Mon, Jul 21, 2025 at 5:04 PM Mickael Maison < >> > > mickael.mai...@gmail.com >> > > > > >> > > > > wrote: >> > > > > > >> > > > > > Hello Kafka users, developers and client-developers, >> > > > > > >> > > > > > This is the second candidate for release of Apache Kafka 4.1.0. >> > > > > > >> > > > > > The release brings many new features and improvements: >> > > > > > - Mechanism for plugin to register metrics >> > > > > > - Allow running multiple versions of connector plugins >> > > > > > - Queue are now in preview access >> > > > > > - New Streams rebalance protocol in early access >> > > > > > - Support for OAuth jwt-bearer grant type >> > > > > > - Improved metadata replication >> > > > > > >> > > > > > Release notes for the 4.1.0 release: >> > > > > > >> > > > > >> > > > >> > > >> https://dist.apache.org/repos/dist/dev/kafka/4.1.0-rc1/RELEASE_NOTES.html >> > > > > > >> > > > > > *** Please download, test and vote by Friday July 25. >> > > > > > >> > > > > > 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://dist.apache.org/repos/dist/dev/kafka/4.1.0-rc1/ >> > > > > > >> > > > > > * Docker release artifacts to be voted upon: >> > > > > > apache/kafka:4.1.0-rc1 >> > > > > > apache/kafka-native:4.1.0-rc1 >> > > > > > >> > > > > > * Maven artifacts to be voted upon: >> > > > > > >> > > >> https://repository.apache.org/content/groups/staging/org/apache/kafka/ >> > > > > > >> > > > > > * Javadoc: >> > > > > > https://dist.apache.org/repos/dist/dev/kafka/4.1.0-rc1/javadoc/ >> > > > > > >> > > > > > * Tag to be voted upon (off 4.1 branch) is the 4.1.0 tag: >> > > > > > https://github.com/apache/kafka/releases/tag/4.1.0-rc1 >> > > > > > >> > > > > > * Documentation: >> > > > > > https://kafka.apache.org/41/documentation.html >> > > > > > PR (https://github.com/apache/kafka-site/pull/702) is not >> merged yet >> > > > > > >> > > > > > * Protocol: >> > > > > > https://kafka.apache.org/41/protocol.html >> > > > > > PR (https://github.com/apache/kafka-site/pull/702) is not >> merged yet >> > > > > > >> > > > > > * Successful CI builds for the 4.1 branch: >> > > > > > Unit/integration tests: >> > > > > https://github.com/apache/kafka/actions/runs/16415760777 >> > > > > > System tests: The environment I use for running the system >> tests is >> > > > > > under maintenance. If someone can run the system tests, go >> ahead. >> > > > > > Otherwise I'll send an update once I'm able to run them. >> > > > > > >> > > > > > * Successful Docker Image Github Actions Pipeline for 4.1 >> branch: >> > > > > > Docker Build Test Pipeline (JVM): >> > > > > > https://github.com/apache/kafka/actions/runs/16415783067 >> > > > > > Docker Build Test Pipeline (Native): >> > > > > > https://github.com/apache/kafka/actions/runs/16415786103 >> > > > > > >> > > > > > Thanks, >> > > > > > Mickael >> > > > > >> > > > >> > > > >> > > > -- >> > > > [image: Aiven] <https://www.aiven.io/> >> > > > >> > > > *Josep Prat* >> > > > Sr. Engineering Director, Streaming Services, *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, >> > > > >> > > > Kenneth Chen >> > > > Amtsgericht Charlottenburg, HRB 209739 B >> > > > >> > > >> > > > -- > Paolo Patierno > > *Senior Principal Software Engineer @ IBM**CNCF Ambassador* > > Twitter : @ppatierno <http://twitter.com/ppatierno> > Linkedin : paolopatierno <http://it.linkedin.com/in/paolopatierno> > GitHub : ppatierno <https://github.com/ppatierno> > -- Paolo Patierno *Senior Principal Software Engineer @ IBM**CNCF Ambassador* Twitter : @ppatierno <http://twitter.com/ppatierno> Linkedin : paolopatierno <http://it.linkedin.com/in/paolopatierno> GitHub : ppatierno <https://github.com/ppatierno>
