TanYuxin-tyx opened a new pull request, #24695:
URL: https://github.com/apache/flink/pull/24695
## What is the purpose of the change
Backport to Flink 1.19 for
https://github.com/apache/flink/pull/24688#event-12553480360
*When using sortBufferAccumulator, we should recycle the buffers to
freeSegments before releasing the data buffer. The reason is that when getting
buffers from the DataBuffer, it may require more buffers than the current
quantity available in freeSegments. Consequently, to ensure adequate buffers
from DataBuffer, the flushed and recycled buffers should also be added to
freeSegments for reuse.*
## Brief change log
- *Reuse the recycled buffers before releasing data buffer for sort
accumulator*
## Verifying this change
This change is already covered by added tests
*SortBufferAccumulatorTest#testReuseRecycledBuffersWhenFlushDataBuffer*.
## 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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