Siyao Meng created HDDS-15429:
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             Summary: Fix updateAndRestart deadlock with 
BackgroundService.PeriodicalTask
                 Key: HDDS-15429
                 URL: https://issues.apache.org/jira/browse/HDDS-15429
             Project: Apache Ozone
          Issue Type: Bug
            Reporter: Siyao Meng
            Assignee: Siyao Meng


Any thread that calls shutdown() also can't hold the monitor lock on 
BackgroundService instance, in this case updateAndRestart. Otherwise, it can 
deadlock. This is a follow-up to HDDS-14645.

Context: https://github.com/apache/ozone/pull/10378#discussion_r3328231014



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