gaoyunhaii opened a new pull request #11924:
URL: https://github.com/apache/flink/pull/11924
## What is the purpose of the change
This PR fixes the unstable input channel test.
Currently some test might be unstable with specific thread concurrency when
we simulating the cases that recycling exclusive and floating buffers in
different threads. However, in realistic there should be no such cases.
Therefore, we could change the recycling into the same thread.
## Brief change log
- c9d0fc65ad8da1f3295d3fb608967ddb471bb370 fixes the unstable tests.
## Verifying this change
This change is a trivial rework / code cleanup without any test coverage.
## 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, 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**
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