[HBASE-4402] Retaining locality after restart broken

• Type: Bug
• Status: Closed
• Priority: Blocker
• Resolution: Fixed
• Affects Version/s: 0.92.0
• Fix Version/s: 0.92.0
• Component/s: master
• Hadoop Flags: Reviewed
• Assignee: Todd Lipcon
• Reporter: Todd Lipcon
• Created: 14/Sep/11 07:19
• Updated: 20/Nov/15 11:52
• Resolved: 06/Oct/11 20:12

Description

In DefaultLoadBalancer, we implement the "retain assignment" function like so:

      if (sn != null && servers.contains(sn)) {
        assignments.get(sn).add(region.getKey());

but this will never work since after a cluster restart, all servers have a new ServerName with a new startcode.