yunfengzhou-hub commented on code in PR #22931:
URL: https://github.com/apache/flink/pull/22931#discussion_r1279088716
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flink-runtime/src/main/java/org/apache/flink/runtime/scheduler/VertexEndOfDataListener.java:
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@@ -51,6 +51,12 @@ public void recordTaskEndOfData(ExecutionAttemptID
executionAttemptID) {
subtaskStatus.set(executionAttemptID.getSubtaskIndex());
}
+ public boolean areAllTasksOfJobVertexEndOfData(JobVertexID jobVertexID) {
+ BitSet subtaskStatus = tasksReachedEndOfData.get(jobVertexID);
+ return subtaskStatus.cardinality()
Review Comment:
This code path had been covered by
CheckpointIntervalDuringBacklogITCase#testExcludeFinishedOperatorBacklogStatus,
but it seems to be a flaky test where it depends on the order of vertices
returned by Map#iterator whether exceptions would be thrown. I'll fix this bug
anyway.
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