xintongsong opened a new pull request #12623: URL: https://github.com/apache/flink/pull/12623
## What is the purpose of the change This PR fixes the test instabilities due to concurrent access to JobTable. ## Brief change log Added an argument `MainThreadExecutable` for `TaskSubmissionTestEnvironment#registerJobMasterConnection` to guarantee it's always executed in the RPC main thread. ## Verifying this change Manually verified by printing all the access thread names in `DefaultJobTable`. ## Does this pull request potentially affect one of the following parts: - Dependencies (does it add or upgrade a dependency): (nono) - The public API, i.e., is any changed class annotated with `@Public(Evolving)`: (no) - The serializers: (no) - The runtime per-record code paths (performance sensitive): (no) - Anything that affects deployment or recovery: JobManager (and its components), Checkpointing, Kubernetes/Yarn/Mesos, ZooKeeper: (no) - The S3 file system connector: (no) ## Documentation - Does this pull request introduce a new feature? (no) - If yes, how is the feature documented? (not applicable) ---------------------------------------------------------------- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. For queries about this service, please contact Infrastructure at: us...@infra.apache.org