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https://issues.apache.org/jira/browse/HBASE-22777?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16902158#comment-16902158
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stack commented on HBASE-22777:
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.005 has a one line change trying to fix crazy checkstyle report. Other
checkstyle complaint is an import order error but the order is correct.
Otherwise, no change. The failed tests are failures to complete the xml...
> 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
> Attachments: 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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