kezhuw commented on a change in pull request #15425:
URL: https://github.com/apache/flink/pull/15425#discussion_r604612731
##########
File path:
flink-streaming-java/src/main/java/org/apache/flink/streaming/runtime/tasks/SourceOperatorStreamTask.java
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@@ -97,6 +97,11 @@ public void init() throws Exception {
inputProcessor = new StreamOneInputProcessor<>(input, output,
operatorChain);
}
+ @Override
+ protected void finishTask() throws Exception {
+ stopMailboxProcessor();
Review comment:
@becketqin `CancelTaskException` is caught in `catch` clause later
inside `StreamTask.invoke`. `cleanUpInvoke` is invoked anyway though
`CancelTaskException` is propagated to `Task` for state handling.
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