Janos Kovacs created HIVE-26145:
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Summary: Disable notification cleaner if interval is zero
Key: HIVE-26145
URL: https://issues.apache.org/jira/browse/HIVE-26145
Project: Hive
Issue Type: Sub-task
Components: Metastore
Reporter: Janos Kovacs
Assignee: Janos Kovacs
Many of the housekeeping/background tasks can be turned off in case of having
multiple instances running parallel.
Some are controlled via the housekeeping node configuration, others are not
started if their frequency is set to zero.
The DB-Notification cleaner unfortunately doesn't have this functionality which
makes all instances to race for the lock on the backend HMS database.
Goal is to add change to be able to turn cleaner off in case if there are
multiple instances running (be able to bound it to the housekeeping instance).
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