pnowojski commented on a change in pull request #15425: URL: https://github.com/apache/flink/pull/15425#discussion_r604611859
########## File path: flink-streaming-java/src/main/java/org/apache/flink/streaming/runtime/tasks/SourceOperatorStreamTask.java ########## @@ -97,6 +97,11 @@ public void init() throws Exception { inputProcessor = new StreamOneInputProcessor<>(input, output, operatorChain); } + @Override + protected void finishTask() throws Exception { + stopMailboxProcessor(); Review comment: > is that StreamTask.invoke() throws CancelTaskException upon cancelation without going through the cleanup logic... ? `cleanUpInvoke()` is/should always be called, regardless of clean shutdown or abrupt cancelation. -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. For queries about this service, please contact Infrastructure at: us...@infra.apache.org