curcur commented on a change in pull request #17187:
URL: https://github.com/apache/flink/pull/17187#discussion_r708032081
##########
File path:
flink-streaming-java/src/main/java/org/apache/flink/streaming/runtime/tasks/StreamTask.java
##########
@@ -916,11 +931,15 @@ public final void cleanUp(Throwable throwable) throws
Exception {
suppressedException =
runAndSuppressThrowable(this::releaseOutputResources,
suppressedException);
- suppressedException =
- runAndSuppressThrowable(channelIOExecutor::shutdown,
suppressedException);
-
- suppressedException = runAndSuppressThrowable(mailboxProcessor::close,
suppressedException);
+ if (channelIOExecutor != null) {
+ suppressedException =
+ runAndSuppressThrowable(channelIOExecutor::shutdown,
suppressedException);
+ }
Review comment:
er... I think `runAndSuppressThrowable` is not designed for this
purpose, but coincidentally yes ^-^.
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