[jira] [Created] (FLINK-15691) TaskExecutorPartitionLifecycleTest#runInTaskExecutorThreadAndWait does not run in main thread

[Shang Yuanchun (Jira)]

Till Rohrmann created FLINK-15691:
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             Summary: TaskExecutorPartitionLifecycleTest#runInTaskExecutorThreadAndWait does not run in main thread
                 Key: FLINK-15691
                 URL: https://issues.apache.org/jira/browse/FLINK-15691
             Project: Flink
          Issue Type: Bug
          Components: Runtime / Coordination, Tests
    Affects Versions: 1.9.1, 1.10.0
            Reporter: Till Rohrmann
             Fix For: 1.11.0


The method {{TaskExecutorPartitionLifecycleTest#runInTaskExecutorThreadAndWait}} does not run the given runnable in the {{TaskExecutors}} main thread. Instead it will run it in an arbitrary thread of the {{RpcService}}.

The reason why this does not cause test instabilities is that we execute operations which don't cause race conditions. However, in order to avoid spreading false friends I would suggest to get rid of this pattern. Moreover, I would question whether {{TaskExecutorPartitionLifecycleTest}} really needs access to the {{TaskExecutors}} internal state. I believe there is an easy way using the {{TaskExecutors}} public API to implement the tests.

cc [~chesnay], [~azagrebin]



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