kezhuw commented on a change in pull request #15425:
URL: https://github.com/apache/flink/pull/15425#discussion_r604597103
##########
File path:
flink-streaming-java/src/main/java/org/apache/flink/streaming/runtime/tasks/StreamTask.java
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@@ -730,12 +730,7 @@ public final void cancel() throws Exception {
(unusedResult, unusedError) -> {
// WARN: the method is called from the task
thread but the callback
// can be invoked from a different thread
- mailboxProcessor.allActionsCompleted();
- try {
- cancelables.close();
- } catch (IOException e) {
- throw new CompletionException(e);
- }
+ stopMailboxProcessor();
Review comment:
That is say `cancelables.close` is supposed to be private to
`StreamTask` but exported due to type but not on purpose, IIUC.
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