Andor Molnar created HBASE-27810:
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Summary: HBCK throws RejectedExecutionException when closing
ZooKeeper resources
Key: HBASE-27810
URL: https://issues.apache.org/jira/browse/HBASE-27810
Project: HBase
Issue Type: Bug
Components: hbck
Affects Versions: 2.5.4, 2.4.17, 3.0.0-alpha-3, 2.6.0
Reporter: Andor Molnar
Assignee: Andor Molnar
HBCK throws RejectedExecutionException at the end of run, because the order of
closing ZooKeeper resources has been swapped in HBASE-27426.
In ZKWatcher.java close() method first it shuts down the zkEventProcessor and
when it fully shut down, it closes the RecoverableZooKeeper (the ZK client).
The watcher receives the close event which cannot be submitted to the event
processor and throws exception.
I think we need to check whether the executor is able to receive jobs before
submitting.
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