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_r406701445
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File path:
flink-runtime/src/main/java/org/apache/flink/runtime/io/network/partition/PipelinedSubpartition.java
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@@ -396,13 +415,11 @@ public int getBuffersInBacklog() {
private boolean shouldNotifyDataAvailable() {
// Notify only when we added first finished buffer.
- return readView != null && !flushRequested &&
getNumberOfFinishedBuffers() == 1;
+ return readView != null && !flushRequested &&
!isBlockedByCheckpoint && getNumberOfFinishedBuffers() == 1;
}
private void notifyDataAvailable() {
- if (readView != null) {
Review comment:
better to make this change as a separate hotfix commit
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