1996fanrui opened a new pull request, #22761:
URL: https://github.com/apache/flink/pull/22761
## What is the purpose of the change
The outputQueueSize indicates `The real size of queued output buffers in
bytes.`, so it shouldn't be negative. However, it may be negative in some cases.
## Brief change log
Fix the bug that totalWrittenBytes of BufferWritingResultPartition misses
some data, including:
- PipelinedSubpartition#finishReadRecoveredState writes the
`EndOfChannelStateEvent` even if the unaligned checkpoint is disable
- PipelinedSubpartition#addRecovered writes channel state(if the job
recovered from unaligned checkpoint, the outputQueueSize is totally wrong)
- PipelinedSubpartition#finish writes the `EndOfPartitionEvent`
## Verifying this change
Improved the `ResultPartitionTest#testSizeOfQueuedBuffers`
## 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 documented
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