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From "Hadoop QA (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-3497) Update Balancer policy with NodeGroup layer
Date Tue, 17 Jul 2012 04:06:35 GMT

    [ https://issues.apache.org/jira/browse/HDFS-3497?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13415880#comment-13415880
] 

Hadoop QA commented on HDFS-3497:
---------------------------------

-1 overall.  Here are the results of testing the latest attachment 
  http://issues.apache.org/jira/secure/attachment/12536770/HDFS-3497-v2.patch
  against trunk revision .

    -1 patch.  The patch command could not apply the patch.

Console output: https://builds.apache.org/job/PreCommit-HDFS-Build/2839//console

This message is automatically generated.
                
> Update Balancer policy with NodeGroup layer
> -------------------------------------------
>
>                 Key: HDFS-3497
>                 URL: https://issues.apache.org/jira/browse/HDFS-3497
>             Project: Hadoop HDFS
>          Issue Type: Sub-task
>          Components: balancer
>    Affects Versions: 1.0.0, 2.0.0-alpha
>            Reporter: Junping Du
>            Assignee: Junping Du
>         Attachments: HDFS-3497-v2.patch, HDFS-3497.patch
>
>
> 1. Make sure Network Topology and BlockPlacementPolicy check in balancer is compatible
with new one with adding NodeGroup layer.
> 2. Update balancer policy for performance optimization with Node Group - "choose the
target and source node on the same node group for balancing as the first priority".
> 3. Make sure balancing policy will not eliminate reliability on environment with nodegroup
(virtualization) that verify good target on NodeGroup relationship. (This part of work is
separated out and tracked in HDFS-3496) 

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