zhuxiaoshang opened a new pull request #13519:
URL: https://github.com/apache/flink/pull/13519
## What is the purpose of the change
Currently all the row time over windows in blink planner runtime discards
late records silently, it would be good to have a metric about the late records
dropping.
## Brief change log
- add metrics of late records dropping to all row time over windows
## Verifying this change
This change added tests and can be verified as follows:
- RowTimeRangeBoundedPrecedingFunctionTest
- RowTimeRangeUnboundedPrecedingFunctionTest
- RowTimeRowsBoundedPrecedingFunctionTest
- RowTimeRowsUnboundedPrecedingFunctionTest
## 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? (no)
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