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https://issues.apache.org/jira/browse/HBASE-22738?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17124479#comment-17124479
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Guanghao Zhang commented on HBASE-22738:
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[~Ddupg] The patch for master cannot apply to branch-2.2/branch-2.3/branch-2
directly. Can you help to prepare a patch for these branches. Thanks.
> Fallback to default group to choose RS when there are no RS in current group
> ----------------------------------------------------------------------------
>
> Key: HBASE-22738
> URL: https://issues.apache.org/jira/browse/HBASE-22738
> Project: HBase
> Issue Type: Bug
> Components: rsgroup
> Reporter: Guanghao Zhang
> Assignee: Sun Xin
> Priority: Major
>
> We configure one regionserver for hbase system table. But when rolling
> upgrade, you need move the region to other regionservers. But because there
> are no other regionservers in this group, you cannot move the region...
>
>
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