fanrui created FLINK-27522:
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Summary: Ignore max buffers per channel when allocate buffer
Key: FLINK-27522
URL: https://issues.apache.org/jira/browse/FLINK-27522
Project: Flink
Issue Type: Improvement
Components: Runtime / Checkpointing, Runtime / Network
Affects Versions: 1.15.0, 1.14.0
Reporter: fanrui
Fix For: 1.16.0
This is first task of
[FLIP-227|https://cwiki.apache.org/confluence/display/FLINK/FLIP-227%3A+Support+overdraft+buffer]
The LocalBufferPool will be unavailable when the maxBuffersPerChannel is
reached for this channel or availableMemorySegments.isEmpty.
If we request a memory segment from LocalBufferPool and the
maxBuffersPerChannel is reached for this channel, we just ignore that and
continue to allocate buffer while availableMemorySegments isn't empty in
LocalBufferPool.
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