Zhihua Deng created HIVE-29720:
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Summary: Abort the service if leader candidates cannot participate
in the election
Key: HIVE-29720
URL: https://issues.apache.org/jira/browse/HIVE-29720
Project: Hive
Issue Type: Bug
Components: Standalone Metastore
Reporter: Zhihua Deng
For the lease leader election, if a Metastore cannot participate in the
election within the retries, it's still running with only a message warned.
This could be an issue if all Metastores have failed the election or a
restarted leader cannot join in the election anymore due to some unknown
exception. As a consequence no housekeeping tasks are running across the
warehouse, and the user cannot figure it out early until things become wrong,
such as normal query becomes slow due to no compaction on the delta files. It
would be nice to abort the Metastore early before things become worse.
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