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_r338958281
##########
File path:
flink-runtime/src/main/java/org/apache/flink/runtime/io/network/buffer/NetworkBufferPool.java
##########
@@ -205,14 +236,26 @@ public void
recycleMemorySegments(Collection<MemorySegment> segments) throws IOE
}
private void recycleMemorySegments(Collection<MemorySegment> segments,
int size) throws IOException {
+ CompletableFuture<?> toNotify = null;
synchronized (factoryLock) {
numTotalRequiredBuffers -= size;
- availableMemorySegments.addAll(segments);
+ synchronized (availabilityHelper) {
+ if (availableMemorySegments.isEmpty() &&
!segments.isEmpty()) {
+ toNotify =
availabilityHelper.getUnavailableToResetAvailable();
+ }
+ availableMemorySegments.addAll(segments);
+ if (toNotify != null) {
Review comment:
It can always call `availabilityHelper.notifyAll();`, because even though
this condition is true it does not mean above `availabilityHelper.wait(2000);`
is happening.
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