[jira] [Created] (HBASE-26672) The threadGroup.destroy in ProcedureExecutor.join fails in some tests

["Duo Zhang (Jira)" <ji...@apache.org>]

Duo Zhang created HBASE-26672:
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             Summary: The threadGroup.destroy in ProcedureExecutor.join fails in some tests
                 Key: HBASE-26672
                 URL: https://issues.apache.org/jira/browse/HBASE-26672
             Project: HBase
          Issue Type: Bug
          Components: proc-v2
            Reporter: Duo Zhang


Always see it dumps the threads in the group to stdout.

This is an example
{noformat}
java.lang.ThreadGroup[name=PEWorkerGroup,maxpri=10]
    Thread[HFileArchiver-1,5,PEWorkerGroup]
{noformat}

I guess the problem is that we create a thread pool when executing a procedure so the thread pool will inherit the thread group.

Not a big problem but still a bit nasty...



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