[HBASE-8596] [docs] Add docs about Region server "draining" mode

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 0.92.2, 0.98.0, 0.94.7, 0.95.0
• Fix Version/s: 0.98.0, 0.95.1
• Component/s: documentation, regionserver
• Hadoop Flags: Reviewed
• Assignee: Jonathan Hsieh
• Reporter: Jonathan Hsieh
• Created: 22/May/13 21:22
• Updated: 23/Sep/13 19:08
• Resolved: 22/May/13 21:40

Description

HBASE-4298 introduced "draining" mode for region servers to optimize rolling restarts to allow for multiple RS's going down simultaneously. There is a good blog post from the original author.

I've added highlights from and and a link to it in the Node Decommissioning section of the ref guide.