[HBASE-10927] Add undrain option to RollingRestart

• Type: Bug
• Status: Closed
• Priority: Minor
• Resolution: Incomplete
• Affects Version/s: 0.89-fb
• Component/s: master
• Assignee: Unassigned
• Reporter: Rishit Shroff
• Created: 08/Apr/14 02:56
• Updated: 17/Jun/22 15:51
• Resolved: 17/Jun/22 15:51

Description

Currently, there is no way to undrain the region server with the same regions it was drained to being with. The reason being that we do not persist list of regions we drained.

Creating this jira to take a file with the list of regions to undrain as an input and drain the regions back to the regionserver.