wsry commented on a change in pull request #11877:
URL: https://github.com/apache/flink/pull/11877#discussion_r665084877
##########
File path:
flink-runtime/src/main/java/org/apache/flink/runtime/io/network/partition/PipelinedSubpartition.java
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@@ -517,19 +539,20 @@ private void increaseBuffersInBacklog(BufferConsumer
buffer) {
}
}
- /**
- * Gets the number of non-event buffers in this subpartition.
- *
- * <p><strong>Beware:</strong> This method should only be used in tests in
non-concurrent access
- * scenarios since it does not make any concurrency guarantees.
- */
- @SuppressWarnings("FieldAccessNotGuarded")
- @VisibleForTesting
+ /** Gets the number of non-event buffers in this subpartition. */
public int getBuffersInBacklog() {
- if (flushRequested || isFinished) {
- return buffersInBacklog;
- } else {
- return Math.max(buffersInBacklog - 1, 0);
+ synchronized (buffers) {
Review comment:
I will add a private int getBuffersInBacklogUnsafe() method
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