[HBASE-10209] Speed region assign in failover

• Type: Improvement
• Status: Closed
• Priority: Major
• Resolution: Abandoned
• Affects Version/s: 0.94.14
• Component/s: Region Assignment
• Assignee: Unassigned
• Reporter: Lijin Bin
• Created: 19/Dec/13 10:08
• Updated: 17/Jun/22 15:33
• Resolved: 17/Jun/22 15:33

Description

During master initializate, if there are regionservers shutdown improperly previous or start up failed, master will think this is a failover and assign regions one by one.
We have a cluster with 200+ nodes and 32000+regions, it takes 50mins to start up all.
The patch is based on 0.94 branch, and trunk is different now.