xiangyuf opened a new pull request, #23230:
URL: https://github.com/apache/flink/pull/23230
## What is the purpose of the change
Fix the issue that redundant taskManagers will not be fulfilled in
FineGrainedSlotManager periodically.
## Brief change log
- Change ResourceAllocationStrategy#tryReleaseUnusedResources to
ResourceAllocationStrategy#tryReconcileClusterResources
- Change ResourceReleaseResult to ResourceReconcileResult and add field
pendingTaskManagersToAdd to ResourceReconcileResult
- make the DefaultResourceAllocationStrategy#tryReconcileClusterResources
not only release but also fulfill the redundant taskmanagers
- extract
DefaultResourceAllocationStrategy::tryFulFillRedundantResourcesWithAction as a
reused function for both tryFulfillRequirements and tryReconcileClusterResources
## Verifying this change
This change added tests and can be verified as follows:
- Added unit test
DefaultResourceAllocationStrategyTest#testRedundantResourceShouldBeFulfilled
## 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
- The S3 file system connector: no
## Documentation
- Does this pull request introduce a new feature? no
- If yes, how is the feature documented?
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