[HBASE-22827] Expose multi-region merge in shell and Admin API - ASF JIRA

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Details

Type: Improvement
Status: Resolved
Priority: Major
Resolution: Fixed
Affects Version/s: None
Fix Version/s: 3.0.0-alpha-1, 2.3.0, 2.2.4, 2.1.10
Component/s: Admin, shell
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Release Note:

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merge_region shell command can now be used to merge more than 2 regions as well. It takes a list of regions as comma separated values or as an array of regions, and not just 2 regions. The full regionnames and encoded regionnames are continued to be accepted.

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merge_region shell command can now be used to merge more than 2 regions as well. It takes a list of regions as comma separated values or as an array of regions, and not just 2 regions. The full regionnames and encoded regionnames are continued to be accepted.

Description

~~HBASE-22777~~ adds being able to merge more than two regions at once. It is only available internally currently for use by hbck2 doing fixup of overlaps in hbase:meta. This issue is about exposing it via the Admin Interface and in turn, via the shell. Probably best if old two region merge method is deprecated.