zhijiangW commented on a change in pull request #9993:
[FLINK-14498][runtime]Introduce NetworkBufferPool#isAvailable() for interacting
with LocalBufferPool.
URL: https://github.com/apache/flink/pull/9993#discussion_r340578198
##########
File path:
flink-runtime/src/main/java/org/apache/flink/runtime/io/network/buffer/NetworkBufferPool.java
##########
@@ -170,9 +180,13 @@ public void recycle(MemorySegment segment) {
throw new IllegalStateException("Buffer
pool is destroyed.");
}
- final MemorySegment segment =
availableMemorySegments.poll(2, TimeUnit.SECONDS);
- if (segment != null) {
- segments.add(segment);
+ synchronized (availabilityHelper) {
Review comment:
Yes, I also had the similar feeling before. But not quite sure whether it is
feasible to do that (I mean considering carefully whether has deadlock concern)
and how many efforts to pay for that. But it is actually worth doing so if
making sense.
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