Hi, Paolo, Thanks for the context. Do you feel that the doc change addresses your concern?
Jun On Thu, Jul 31, 2025 at 5:13 AM Paolo Patierno <paolo.patie...@gmail.com> wrote: > Hi Jun, > thanks ... that PR came after a long discussion we had in the Strimzi > community https://github.com/strimzi/strimzi-kafka-operator/issues/11685 > when found out about this behaviour ;-) > > Thanks, > Paolo > > On Wed, 30 Jul 2025 at 18:55, Jun Rao <j...@confluent.io.invalid> wrote: > > > Hi, Paolo, > > > > There is a PR https://github.com/apache/kafka/pull/20268 for the doc > > change > > for ELR. > > > > Hi, Christo, > > > > Group rebalance is designed so that each partition is only consumed by a > > single consumer instance at a time. Share consumer by design allows a > > single partition to be consumed by more than one consumer at any time. > So, > > it doesn't need group.coordinator.rebalance.protocols. > > > > Thanks, > > > > Jun > > > > On Wed, Jul 30, 2025 at 6:14 AM Christo Lolov <christolo...@gmail.com> > > wrote: > > > > > Heya! > > > > > > I tested creating a cluster using the binary tgz. Furthermore, I went > > > through the enabling, producing, consuming, and disabling of queues. > > > Lastly, I carried out the same steps on both Docker images. > > > > > > I went through the JavaDocs and clicked on links to confirm they work. > > > > > > I chose artifacts at random and confirmed that they are signed. > > > > > > I went through the release notes, and the OAuth jwt-bearer KIP is > > > classified as an improvement and not as a new feature. I am uncertain > > > whether we have a standardised way of differentiating between them and > > > whether it is up to the KIP-implementer to correctly classify the JIRA > > > ticket. Either way, I don’t think this is a blocker. > > > > > > I cross-checked the upgrade.html with what is currently on the > > > kafka.apache.org website. It appears that in > > > > > > > > > https://github.com/apache/kafka-site/blob/abd4e2ac9d4da0c7e3c54203925725c9e2da653d/41/upgrade.html > > > (part of https://github.com/apache/kafka-site/pull/702/files) we have > > > upgrade notes for 4.1.0, 4.0.0 and 3.9.0 while on the website we have > > > upgrade notes for 4.0.0 and 3.9.0. I suspect we mention only the latest > > > version and give a link to the previous one. In the latest PR, > however, I > > > believe we have 3 sections instead of just 2. > > > > > > It is a bit difficult to see whether the new addition to the default of > > > group.coordinator.rebalance.protocols i.e. streams, is part of the > > > documentation. > > > > > > Along the same lines, is the share value needed for the same > > configuration? > > > There is no mention of it in > > > > > > > > > https://cwiki.apache.org/confluence/display/KAFKA/Queues+for+Kafka+%28KIP-932%29+-+Preview+Release+Notes > > > and I am able to produce and consume using the CLI tools without it? > > > > > > I don't feel that my documentation-related queries are a blocker. As > > > such +1 (binding) for this release candidate from me :) > > > > > > Best, > > > Christo > > > > > > > > > > > > > > > On Wed, 30 Jul 2025 at 08:08, Paolo Patierno <paolo.patie...@gmail.com > > > > > wrote: > > > > > > > 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> > > > > > > > > > > > > -- > 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> >
