Github user zentol commented on a diff in the pull request:
https://github.com/apache/flink/pull/2727#discussion_r85698371
--- Diff:
flink-runtime/src/main/java/org/apache/flink/runtime/io/network/buffer/LocalBufferPool.java
---
@@ -111,6 +111,11 @@ public int getNumBuffers() {
}
@Override
+ public int getNumberOfUsedBuffers() {
+ return numberOfRequestedMemorySegments -
getNumberOfAvailableMemorySegments();
--- End diff --
instead of `getNumberOfAvailableMemorySegments()` we could use
`availableMemorySegments.size()` so we never enter a synchronized block and
affect the LocalBufferPool.
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