Guozhang Wang created KAFKA-10362:
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Summary: When resuming Streams active task with EOS, the
checkpoint file should be deleted
Key: KAFKA-10362
URL: https://issues.apache.org/jira/browse/KAFKA-10362
Project: Kafka
Issue Type: Bug
Components: streams
Reporter: Guozhang Wang
Today when we suspend a task we commit and along with the commit we always
write checkpoint file even if we are eosEnabled (since the state is already
SUSPENDED). But the suspended task may later be resumed and in that case the
checkpoint file should be deleted since it should only be written when it is
cleanly closed.
With our latest rebalance protocol in KIP-429, resume would not be called since
all suspended tasks would be closed, but with the old eager protocol it may
still be called — I think that may be the reason we did not get it often.
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