liuyongvs opened a new pull request, #26962:
URL: https://github.com/apache/flink/pull/26962
## What is the purpose of the change
Optimize the timer registration logic in window early/late firing scenarios.
For keys that will not receive subsequent data, it is unnecessary to repeatedly
register processing timers, thereby reducing the number of timers and state
access to improve performance.
## Verifying this change
org.apache.flink.table.runtime.operators.window.groupwindow.operator.WindowOperatorTest#testEventTimeTumblingWindowsWithEarlyFiring
org.apache.flink.table.runtime.operators.window.groupwindow.operator.WindowOperatorTest#testEventTimeTumblingWindowsWithEarlyAndLateFirings
## 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: (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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