zhijiangW commented on a change in pull request #11351: [FLINK-16404][runtime]
Avoid caching buffers for blocked input channels before barrier alignment
URL: https://github.com/apache/flink/pull/11351#discussion_r408649420
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File path:
flink-runtime/src/main/java/org/apache/flink/runtime/io/network/partition/PipelinedSubpartition.java
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@@ -179,6 +182,10 @@ public void release() {
@Nullable
BufferAndBacklog pollBuffer() {
synchronized (buffers) {
+ if (isBlockedByCheckpoint) {
Review comment:
I see, it is for the case of local channel. I think we should supplement a
test to cover this change if possible.
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