zhijiangW commented on a change in pull request #11351: [FLINK-16404][runtime]
Solve the potential deadlock problem when reducing exclusive buffers to zero
URL: https://github.com/apache/flink/pull/11351#discussion_r397605870
##########
File path:
flink-runtime/src/main/java/org/apache/flink/runtime/io/network/partition/consumer/RemoteInputChannel.java
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@@ -397,6 +409,17 @@ public void notifyBufferDestroyed() {
// Nothing to do actually.
}
+ @Override
+ public void onExactlyOnceCheckpointCompletedOrCanceled(long
checkpointId) {
+ synchronized (bufferQueue) {
Review comment:
why need to synchronized `bufferQueue`?
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