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From "Tsz Wo Nicholas Sze (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-6133) Make Balancer support exclude specified path
Date Fri, 20 Feb 2015 13:52:14 GMT

    [ https://issues.apache.org/jira/browse/HDFS-6133?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14328931#comment-14328931
] 

Tsz Wo Nicholas Sze commented on HDFS-6133:
-------------------------------------------

> ... I was wondering whether there is any compatibility issue when we do rolling upgrade?
...

For rolling upgrade, the block pinning feature should be first disabled, then upgrade the
cluster and then enable the feature.  What do you think?


> Make Balancer support exclude specified path
> --------------------------------------------
>
>                 Key: HDFS-6133
>                 URL: https://issues.apache.org/jira/browse/HDFS-6133
>             Project: Hadoop HDFS
>          Issue Type: Improvement
>          Components: balancer & mover, datanode
>            Reporter: zhaoyunjiong
>            Assignee: zhaoyunjiong
>             Fix For: 2.7.0
>
>         Attachments: HDFS-6133-1.patch, HDFS-6133-10.patch, HDFS-6133-11.patch, HDFS-6133-2.patch,
HDFS-6133-3.patch, HDFS-6133-4.patch, HDFS-6133-5.patch, HDFS-6133-6.patch, HDFS-6133-7.patch,
HDFS-6133-8.patch, HDFS-6133-9.patch, HDFS-6133.patch
>
>
> Currently, run Balancer will destroying Regionserver's data locality.
> If getBlocks could exclude blocks belongs to files which have specific path prefix, like
"/hbase", then we can run Balancer without destroying Regionserver's data locality.



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