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https://issues.apache.org/jira/browse/HBASE-4402?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13119596#comment-13119596
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Todd Lipcon commented on HBASE-4402:
------------------------------------
Since we now have locality metrics on regions, it seems like we can already see
that information elsewhere. The log output here is helpful since you can
quickly see which servers didn't properly rejoin the cluster.
> Retaining locality after restart broken
> ---------------------------------------
>
> Key: HBASE-4402
> URL: https://issues.apache.org/jira/browse/HBASE-4402
> Project: HBase
> Issue Type: Bug
> Components: master
> Affects Versions: 0.92.0
> Reporter: Todd Lipcon
> Assignee: Todd Lipcon
> Priority: Blocker
> Fix For: 0.92.0
>
> Attachments: hbase-4402.txt, hbase-4402.txt
>
>
> In DefaultLoadBalancer, we implement the "retain assignment" function like so:
> {code}
> if (sn != null && servers.contains(sn)) {
> assignments.get(sn).add(region.getKey());
> {code}
> but this will never work since after a cluster restart, all servers have a
> new ServerName with a new startcode.
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