[HBASE-5914] Bulk assign regions in the process of ServerShutdownHandler

• Type: Improvement
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 0.95.0
• Hadoop Flags: Reviewed
• Assignee: Chunhui Shen
• Reporter: Chunhui Shen
• Created: 02/May/12 05:48
• Updated: 23/Sep/13 18:31
• Resolved: 12/Jun/12 05:06

Description

In the process of ServerShutdownHandler, we currently assign regions singly.

In the large cluster, one regionserver always carried many regions, this action is quite slow.

What about using bulk assign regions like cluster start up.

In current logic, if we failed assigning many regions to one destination server, we will wait unitl timeout,
however in the process of ServerShutdownHandler, we should retry it to another server.

Issue Links

• is related to: HBASE-6012 Handling RegionOpeningState for bulk assign
• relates to: HBASE-7039 Port HBASE-5914 Bulk assign regions in the process of ServerShutdownHandler (and bugfix part of HBASE-6012) to 0.94