[GitHub] tillrohrmann opened a new pull request #7665: [FLINK-11551][rpc] Allow RpcEndpoint to execute asynchronous stop operations

[GitBox <gi...@apache.org>]

tillrohrmann opened a new pull request #7665: [FLINK-11551][rpc] Allow RpcEndpoint to execute asynchronous stop operations
URL: https://github.com/apache/flink/pull/7665
 
 
   ## What is the purpose of the change
   
   Replace RpcEndpoin#postStop with RpcEndpoint#onStop method which can execute asynchronous
   operations in the main thread executor. onStop returns a future which will terminate the
   RpcEndpoint once it is completed.
   
   The new stop semantics allow to execute complex shut down logic which requires asynchronous
   operations.
   
   ## Verifying this change
   
   - Added `AkkaRpcServiceTest#testAkkaRpcServiceShutDownWithRpcEndpoints`, `AkkaRpcServiceTest#testAkkaRpcServiceShutDownWithRpcEndpoints` and `AkkaRpcActorTest#testMainThreadExecutionOnStop`.
   
   ## Does this pull request potentially affect one of the following parts:
   
     - Dependencies (does it add or upgrade a dependency): (no)
     - 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, 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)
   

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