mjsax commented on a change in pull request #8776:
URL: https://github.com/apache/kafka/pull/8776#discussion_r434111426
##########
File path:
streams/src/main/java/org/apache/kafka/streams/processor/internals/StandbyTask.java
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@@ -247,6 +247,9 @@ private void close(final boolean clean) {
"state manager close",
log
);
+ } else if (state() == State.CLOSED) {
+ log.trace("Skip closing since state is {}", state());
+ return;
} else {
throw new IllegalStateException("Illegal state " + state() + "
while closing standby task " + id);
Review comment:
The state could be `RESTORING` what is _illegal_ but not _unknown_ -- We
would need more conditions to distinguish both cases (introducing `switch()`
would be helpful for this case). Thoughts?
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