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

• Type: Improvement
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 3.0.0-alpha-1, 2.3.0, 2.2.4, 2.1.10
• Component/s: Admin, shell

Release Note

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.

• Assignee: Sakthi
• Reporter: Michael Stack
• Created: 09/Aug/19 23:06
• Updated: 06/Mar/20 02:57
• Resolved: 06/Mar/20 02:56

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.

Issue Links

• is related to: HBASE-22777 Add a multi-region merge (for fixing overlaps, etc.)
• relates to: HBASE-23826 [HBCK2] Expose Multi-Region merge feature via hbck2
• links to: GitHub Pull Request #1138
• links to: GitHub Pull Request #1204
• links to: GitHub Pull Request #1218