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https://issues.apache.org/jira/browse/HBASE-21468?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16686050#comment-16686050
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Allan Yang commented on HBASE-21468:
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{quote}
{quote}
[~anoop.hbase], yes, there is one called 
''hbase.master.urgent.procedure.threads'', and the default value is 1, we only 
need one urgent worker to handle meta table.

I will commit this one to branch-2.0 and branch-2.1 soon

> separate workers for meta table is not working
> ----------------------------------------------
>
>                 Key: HBASE-21468
>                 URL: https://issues.apache.org/jira/browse/HBASE-21468
>             Project: HBase
>          Issue Type: Bug
>    Affects Versions: 2.1.1, 2.0.2
>            Reporter: Allan Yang
>            Assignee: Allan Yang
>            Priority: Major
>         Attachments: HBASE-21468.branch-2.0.001.patch
>
>
> This is an addendum for HBASE-21423, since HBASE-21423 is already closed, the 
> QA won't be triggered.
> It is my mistake that the separate workers for meta table is not working, 
> since when polling from queue, the onlyUrgent flag is not passed in.
> And for some UT that only require one worker thread, urgent workers should 
> set to 0 to ensure there is one worker at time.



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