Kafka

HI KAFKA Users, We have two configured Linux Kafka on the 2 environment UAT and PRODUCTION. Environment through same warning simultaneous Every 12 hours once same exact time. So can anyone please share the Root cause of the issue and solution of the issue. Issue has been observed last month 17 APR 2026 onwards. Thanks and Regards, THIRUVARASAMOORTHI R. From: R THIRUVARASAMOORTHI Sent: 06 May 2026 10:34 To: 'users@kafka.apache.org' <users@kafka.apache.org> Cc: RAJARAM KUMAR <RAJARAM.KUMAR2@mahindra.com> Subject: KAFKA 2.13-3.3.1 Zookeeper issue Hello Kafka Community, We are currently using Kafka version kafka_2.13-3.3.1 on a Linux Ubuntu server. This setup has been running successfully for the past two years to integrate two PLM [3DExperience and Teamcenter] applications. In recent days, we have encountered recurring issues in the Zookeeper services, and it leads to bring down the zookeeper service within 10 days: Every 12 hours/24 hours, Zook...

I had an idea for a Kafka Streams implementation of Allen’s Temporal Logic (from the early 80’s), and came up with this. It’s just a toy/demo but I thought it was pretty cool what the AI (with significant help from me) could come up with in a few hours of effort. Article is here: https://www.linkedin.com/pulse/kafka-streams-implementation-allens-temporal-logic-llms-paul-brebner-j247e/ Code is here: https://github.com/paul-brebner/kafka-streams-allen-intervals/tree/main Enjoy! -- Regards, Paul Brebner NetApp Instaclustr Technology Evangelist Read my blogs at https://www.instaclustr.com/paul-brebner/ Follow me on https://www.linkedin.com/in/paul-brebner-0a547b4/

Hello Kafka users, developers and client-developers, This is the 3rd candidate for release of Apache Kafka 4.3.0. Since RC2, we've added fixes for: - https://issues.apache.org/jira/browse/KAFKA-20380 - https://issues.apache.org/jira/browse/KAFKA-20571 - https://issues.apache.org/jira/browse/KAFKA-20572 Release notes for the 4.3.0 release: https://dist.apache.org/repos/dist/dev/kafka/4.3.0-rc2/RELEASE_NOTES.html *** Please download, test and vote by May 20, 5pm CEST Kafka's KEYS file containing PGP keys we use to sign the release: https://downloads.apache.org/kafka/KEYS * Release artifacts to be voted upon (source and binary): https://dist.apache.org/repos/dist/dev/kafka/4.3.0-rc2/ * Docker release artifacts to be voted upon: apache/kafka:4.3.0-rc2 apache/kafka-native:4.3.0-rc2 * 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/4.3....

Hi, I did the following: - checked the signatures and checksums - built from source - ran the tests - Tested Docker Images: -- can start -- can create topics - ran quickstart - ran sample apps with consumer groups - checked Java client interaction from artifacts (admin, producer, consumer and streams) - checked Tiered Storage offloads to remote storage (with Aiven's plugin) - checked Kafka Connect Verified on Linux with JDK 21 +1 (binding) On Tue, May 12, 2026 at 5:31 PM Lucas Brutschy via dev <dev@kafka.apache.org> wrote: > +1 (non-binding) > > Verified on macOS arm64, JDK 17: > > * GPG signatures and SHA512 checksums for source, binary, and > site-docs tarballs > * LICENSE/NOTICE present > * Built source with ./gradlew jar — BUILD SUCCESSFUL > * git tag 4.2.1-rc4 commit matches the shipped jar's > kafka-version.properties commitId > * KRaft quickstart: format --standalone, broker start, > t...

+1 (non-binding) Verified on macOS arm64, JDK 17: * GPG signatures and SHA512 checksums for source, binary, and site-docs tarballs * LICENSE/NOTICE present * Built source with ./gradlew jar — BUILD SUCCESSFUL * git tag 4.2.1-rc4 commit matches the shipped jar's kafka-version.properties commitId * KRaft quickstart: format --standalone, broker start, topic/produce/consume * KIP-1071 streams group: ran WordCountDemo with group.protocol=streams; logs show StreamsGroupHeartbeatRequestManager and counts aggregate correctly across rounds. Exercised kafka-streams-groups.sh --list/--describe/--members/--state/--offsets/ --verbose; --reset-offsets correctly rejected while Stable, accepted once Empty * Docker images apache/kafka and apache/kafka-native: both start, produce/consume works against each, commitId matches the tag * Documentation, javadoc, protocol, release-notes, and GitHub tag URLs all reachable * Maven staging artifacts present with La...

Hi Mickael, I did the following: - verified the checksums and signatures - build from source (java 21) -> run quickstart, basic produce/consume with Classic and Consumer groups - run basic consume/produce on both docker images - run the network degrade sys test that was failing on your side. I got a green run for the test_rate on 4.3 after some retries https://confluent-open-source-kafka-branch-builder-system-test-results.s3-us-west-2.amazonaws.com/trunk/2026-05-11--001.f3134388-b3df-48e5-ae8b-98d07ddfff55--1778526564--apache--4.3--84b51283d6/report.html +1 (binding) Best! Lianet On Mon, May 11, 2026 at 2:51 PM Jakub Scholz <jakub@scholz.cz> wrote: > @Maciej: You mean within Strimzi? The system tests we have covering OAuth > passed. But I have not done any special testing for that as OAuth is not > really my specialty. > > Jakub > > On Mon, May 11, 2026 at 5:36 PM Maciej Malecki <emaciejm@gmail.com> wrote: > > ...

@Maciej: You mean within Strimzi? The system tests we have covering OAuth passed. But I have not done any special testing for that as OAuth is not really my specialty. Jakub On Mon, May 11, 2026 at 5:36 PM Maciej Malecki <emaciejm@gmail.com> wrote: > Does this version work with strimzi oauth 0.17.1? > > *__________________* > *Regards,* > > *Maciej Małecki* > > pon., 11 maj 2026, 16:58 użytkownik Jakub Scholz <jakub@scholz.cz> > napisał: > > > I used the staged binaries and Maven artifacts, and: > > * did some manual smoke testing > > * Run it within Strimzi and its system tests > > > > All seems to work fine, so +1 (non-binding). > > > > Thanks & Regards > > Jakub > > > > On Tue, May 5, 2026 at 1:41 PM Mickael Maison <mickael.maison@gmail.com> > > wrote: > > > > > Hello Kafka users, developers and client-developers, >...