-1 (non-binding)
I performed the following actions successfully: - `mvn clean verify` using OpenJDK 17 + Maven 3.9.14 - `helm unittest helm/flink-kubernetes-operator --file "tests/**/*_test.yaml”` command - Built the Docker image and installed the operator within Helm - Ran the examples on normal runs and on different combinations However, while running the examples by checking the new features added as part of this new release, I hit the following problems, which I consider to be real blockers: - The same problem that Mate Czagany mentioned. This problem is always visible for Flink 2.0+ jobs, and the errors are becoming a real noise and a false alarm for healthy jobs that are properly configured. Also, this one has a real consequence as well: a partial runtime config is silently cached, and each cache refresh burns some seconds of a reconcile thread in the RestClusterClient retry loop. - The autoscaler parallelism overrides break every redeploy after a scaling, for deployments running on Flink versions lower than 2.0. Since FLINK-39791, the operator boots with the standard YAML parser, so the scaling realizer serializes `pipeline.jobvertex-parallelism-overrides` into the CR in the standard flow format, which the legacy parser of 1.x jobs cannot read. In-place rescaling keeps working, so the problem is seen after the first spec upgrade or last-state restore, where the job fails at submission with "Could not parse value ... Illegal quoting". Based on this, I created FLINK-40474 [1] bug with the full analysis, and I’m going to provide a PR for it today. Best regards, Dennis [1] https://issues.apache.org/jira/browse/FLINK-40474 On Tue, Aug 25, 2026 at 2:52 PM Samrat Deb <[email protected]> wrote: > +1 (non-binding) > > - Built from source with JDK 17, mvn clean verify succeeds > - Source matches tag release-1.16.0-rc2 > - Verified SHA512 checksums and GPG signatures > - LICENSE/NOTICE present, RAT passes, no binaries in source > > Bests, > Samrat > > On Tue, Aug 25, 2026 at 3:00 PM Mate Czagany <[email protected]> wrote: > > > +1 (non-binding) > > > > - Verified signatures and checksums > > - No binaries in the source release > > - Helm chart version and appVersion match, 1.16.0 > > - Image tag in Helm chart is correct, `d6f8e84` > > - Successfully built from source with JDK 17 and Maven 3.8.6 > > - Verified NOTICE files, all looks good > > - Verified JIRA release notes > > - Ran the basic example job with Flink 2.2, upgraded parallelism, cleaned > > up job. > > > > However I saw that the feature introduced by FLINK-35746 [1] that > observes > > the Flink configuration via REST does not correctly work for Flink 2.x > jobs > > as one of the expected fields was removed, and the operator still uses > 1.20 > > client. I have opened a PR [2] to fix it. I'm not sure if it's release > > blocking. It only causes the new feature to not work properly for Flink > 2.x > > jobs. > > > > Best regards, > > Mate > > > > [1] https://issues.apache.org/jira/browse/FLINK-35746 > > [2] https://github.com/apache/flink-kubernetes-operator/pull/1193 > > > > On Tue, Aug 25, 2026 at 8:00 AM Weiqing Yang <[email protected]> > > wrote: > > > > > +1 (non-binding) > > > > > > - Verified SHA512 checksums and GPG signatures (source, helm chart, > > > index.yaml) > > > - Source matches tag release-1.16.0-rc2 (dotfiles and the release image > > pin > > > aside) > > > - LICENSE/NOTICE present, RAT passes, no binaries in source > > > - Built from source with JDK 17, mvn clean verify passes > > > - Ran the JDBC and docs integration tests with -Dit.skip=false > > > - Checked Maven staging (artifacts present, signatures verified on > every > > > jar and pom) > > > - Helm chart version and appVersion are 1.16.0, image tag matches the > rc2 > > > commit > > > - Reviewed web PR #877 (a few comments, non-blocking) > > > > > > I don't think either is release blocking: link [3] points at f4f4582, > the > > > pre-version-bump commit, so that image is still on 1.16-SNAPSHOT while > > the > > > chart correctly uses d6f8e84. And reflectasm 1.09 is bundled in the > > shaded > > > jar but missing from NOTICE, same as in 1.15.0. > > > > > > Best, > > > Weiqing > > > > > > On Fri, Aug 21, 2026 at 9:21 AM Gyula Fóra <[email protected]> wrote: > > > > > > > Hi Everyone, > > > > Please review and vote on the release candidate #2 for the version > > > > 1.16.0 of Apache Flink Kubernetes Operator, > > > > as follows: > > > > [ ] +1, Approve the release > > > > [ ] -1, Do not approve the release (please provide specific comments) > > > > > > > > **Release Overview** > > > > > > > > As an overview, the release consists of the following: > > > > a) Kubernetes Operator canonical source distribution (including the > > > > Dockerfile), to be deployed to the release repository at > > > > dist.apache.org > > > > b) Kubernetes Operator Helm Chart to be deployed to the release > > > > repository at dist.apache.org > > > > c) Maven artifacts to be deployed to the Maven Central Repository > > > > d) Docker image to be pushed to dockerhub > > > > > > > > **Staging Areas to Review** > > > > > > > > The staging areas containing the above mentioned artifacts are as > > > > follows, for your review: > > > > * All artifacts for a,b) can be found in the corresponding dev > > > > repository at dist.apache.org [1] > > > > * All artifacts for c) can be found at the Apache Nexus Repository > [2] > > > > * The docker image for d) is staged on github [3] > > > > > > > > All artifacts are signed with the key 21F06303B87DAFF1 [4] > > > > > > > > Other links for your review: > > > > * JIRA release notes [5] > > > > * source code tag "release-1.16.0-rc2" [6] > > > > * PR to update the website Downloads page to include Kubernetes > > > > Operator links [7] > > > > > > > > **Vote Duration** > > > > > > > > The voting time will run for at least 72 hours. > > > > It is adopted by majority approval, with at least 3 PMC affirmative > > > votes. > > > > > > > > **Note on Verification** > > > > > > > > You can follow the basic verification guide here[8]. > > > > Note that you don't need to verify everything yourself, but please > > > > make note of what you have tested together with your +- vote. > > > > > > > > Cheers! > > > > Gyula Fora > > > > > > > > [1] > > > > > > > > > > https://dist.apache.org/repos/dist/dev/flink/flink-kubernetes-operator-1.16.0-rc2/ > > > > [2] > > > > > > https://repository.apache.org/content/repositories/orgapacheflink-1939/ > > > > [3] ghcr.io/apache/flink-kubernetes-operator:f4f4582 > > > > [4] https://dist.apache.org/repos/dist/release/flink/KEYS > > > > [5] > > > > > > > > > > https://issues.apache.org/jira/secure/ReleaseNote.jspa?projectId=12315522&version=12356946 > > > > [6] > > > > > > > > > > https://github.com/apache/flink-kubernetes-operator/tree/release-1.16.0-rc2 > > > > [7] https://github.com/apache/flink-web/pull/877 > > > > [8] > > > > > > > > > > https://cwiki.apache.org/confluence/display/FLINK/Verifying+a+Flink+Kubernetes+Operator+Release > > > > > > > > > >
