wsry opened a new pull request #12994:
URL: https://github.com/apache/flink/pull/12994
## What is the purpose of the change
The filed initialCredit of RemoteInputChannel is set only once and can be
accessed by multi threads. This patch makes the filed final and moves the
initialization to the constructor of RemoteInputChannel to avoid potential
thread safety issues.
## Brief change log
- Make initialCredit of RemoteInputChannel final
## Verifying this change
This change is already covered by existing tests.
## Does this pull request potentially affect one of the following parts:
- Dependencies (does it add or upgrade a dependency): (yes / **no**)
- The public API, i.e., is any changed class annotated with
`@Public(Evolving)`: (yes / **no**)
- The serializers: (yes / **no** / don't know)
- The runtime per-record code paths (performance sensitive): (yes / **no**
/ don't know)
- Anything that affects deployment or recovery: JobManager (and its
components), Checkpointing, Kubernetes/Yarn/Mesos, ZooKeeper: (yes / **no** /
don't know)
- The S3 file system connector: (yes / **no** / don't know)
## Documentation
- Does this pull request introduce a new feature? (yes / **no**)
- If yes, how is the feature documented? (**not applicable** / docs /
JavaDocs / not documented)
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