yunfengzhou-hub opened a new pull request, #23953:
URL: https://github.com/apache/flink/pull/23953
## What is the purpose of the change
This pull request supports configuring the PARALLELISM_OVERRIDES
configuration during the job submission process. Before this PR, Flink has
currently only allowed configuring this parameter before the Dispatcher, or the
cluster, starts.
## Brief change log
- Pass PARALLELISM_OVERRIDES from environment to job graph.
- Make dispatcher use PARALLELISM_OVERRIDES from job graph before submitting
job.
## Verifying this change
This change is covered by modified and newly added tests in
JarRunHandlerParameterTest and DispatcherTest.
## 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, ZooKeeper: yes
- 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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