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https://issues.apache.org/jira/browse/HBASE-21017?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16592572#comment-16592572
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Duo Zhang commented on HBASE-21017:
-----------------------------------
I think this may happen even if we do not allow assigning an already onlined
region. It depends on the implementation of RSProcedureDispatcher. If we may
fail a OpenRegionProcedure even if the request has been sent to the RS, this
race could happen. I think it is no harm to make it more robust. Just lock the
RegionStateNode when executing OpenRegionProcedure.
> Revisit the expected states for open/close
> ------------------------------------------
>
> Key: HBASE-21017
> URL: https://issues.apache.org/jira/browse/HBASE-21017
> Project: HBase
> Issue Type: Sub-task
> Components: amv2
> Reporter: Duo Zhang
> Assignee: Duo Zhang
> Priority: Major
> Fix For: 3.0.0, 2.2.0
>
> Attachments: HBASE-21017-debug.patch, HBASE-21017.patch
>
>
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