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From "Hudson (Commented) (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-4402) Retaining locality after restart broken
Date Thu, 06 Oct 2011 22:33:29 GMT

    [ https://issues.apache.org/jira/browse/HBASE-4402?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13122364#comment-13122364
] 

Hudson commented on HBASE-4402:
-------------------------------

Integrated in HBase-0.92 #48 (See [https://builds.apache.org/job/HBase-0.92/48/])
    HBASE-4402 Retaining locality after restart broken

stack : 
Files : 
* /hbase/branches/0.92/CHANGES.txt
* /hbase/branches/0.92/src/main/java/org/apache/hadoop/hbase/master/AssignmentManager.java
* /hbase/branches/0.92/src/main/java/org/apache/hadoop/hbase/master/DefaultLoadBalancer.java
* /hbase/branches/0.92/src/test/java/org/apache/hadoop/hbase/master/TestDefaultLoadBalancer.java

                
> 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: 4402-v3.txt, 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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