[HBASE-5314] Gracefully rolling restart region servers in rolling-restart.sh

• Type: Improvement
• Status: Closed
• Priority: Minor
• Resolution: Fixed
• Fix Version/s: 0.94.3, 0.95.0
• Component/s: scripts
• Hadoop Flags: Reviewed
• Assignee: Yifeng Jiang
• Reporter: Yifeng Jiang
• Created: 01/Feb/12 08:45
• Updated: 26/Feb/13 08:20
• Resolved: 13/Mar/12 06:30

Description

The rolling-restart.sh has a --rs-only option which simply restarts all region servers in the cluster.
Consider improve it to gracefully restart region servers to avoid the offline time of the regions deployed on that server, and keep the region distributions same as what it was before the restarting.