## What is the purpose of the change *(For example: This pull request fix that the slots in task executor will leak if task executor fail to offer it to job master due to rpc timeout.)*
## Verifying this change - *Add a test in TaskExecutorTest* ## 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) [ Full content available at: https://github.com/apache/flink/pull/6780 ] This message was relayed via gitbox.apache.org for [email protected]
