NicoK commented on a change in pull request #6809: [FLINK-10491][network] Pass
BufferPoolOwner in the constructor of LocalBufferPool
URL: https://github.com/apache/flink/pull/6809#discussion_r223741773
##########
File path:
flink-runtime/src/main/java/org/apache/flink/runtime/io/network/NetworkEnvironment.java
##########
@@ -209,8 +209,11 @@ public void setupPartition(ResultPartition partition)
throws IOException {
int maxNumberOfMemorySegments =
partition.getPartitionType().isBounded() ?
partition.getNumberOfSubpartitions() *
networkBuffersPerChannel +
extraNetworkBuffersPerGate :
Integer.MAX_VALUE;
+ // If the partition type is back pressure-free, we
register with the buffer pool for
+ // callbacks to release memory.
bufferPool =
networkBufferPool.createBufferPool(partition.getNumberOfSubpartitions(),
- maxNumberOfMemorySegments);
+ maxNumberOfMemorySegments,
partition.getPartitionType().hasBackPressure() ? partition : null);
Review comment:
Actually, the comment above looks right but the code does not - it should
resemble the old behaviour of:
```
if (!partitionType.hasBackPressure()) {
bufferPool.setBufferPoolOwner(this);
}
```
If I'm right, then this is apparently not covered by tests either (and
should be added!)
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