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https://issues.apache.org/jira/browse/HBASE-22777?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16904242#comment-16904242
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stack commented on HBASE-22777:
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HBASE-22827 is about exposing multi-merge in Admin and Shell. Currently only
available internally.
> Add a multi-region merge (for fixing overlaps, etc.)
> ----------------------------------------------------
>
> Key: HBASE-22777
> URL: https://issues.apache.org/jira/browse/HBASE-22777
> Project: HBase
> Issue Type: Sub-task
> Components: hbck2, proc-v2
> Reporter: stack
> Assignee: stack
> Priority: Major
> Fix For: 3.0.0, 2.3.0, 2.0.6, 2.2.1, 2.1.6
>
> Attachments: HBASE-22777.branch-2.0.001.patch,
> HBASE-22777.branch-2.0.002.patch, HBASE-22777.branch-2.1.001.patch,
> HBASE-22777.branch-2.1.002.patch, HBASE-22777.master.001.patch,
> HBASE-22777.master.002.patch, HBASE-22777.master.003.patch,
> HBASE-22777.master.004.patch, HBASE-22777.master.005.patch
>
>
> MergeTableRegionProcedure does two regions at a time only. We have hardcoded
> notion that merge has an 'A' and 'B' parent.
> This issue is about making it so we merge N regions all in the one go. We
> need this facility generally; will simplify operator's life being able to
> merge up in one go rather than in steps of two. In particular, would make
> fixing overlaps easier if could just merge all regions in the overlapping
> area.
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