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Posted to hdfs-issues@hadoop.apache.org by "stack (JIRA)" <ji...@apache.org> on 2014/03/21 06:26:44 UTC

[jira] [Commented] (HDFS-6133) Make Balancer support don't move blocks belongs to Hbase

    [ https://issues.apache.org/jira/browse/HDFS-6133?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13942811#comment-13942811 ] 

stack commented on HDFS-6133:
-----------------------------

HDFS-4420 looks related?

I skimmed the patch.  Looks good.  You should probably change the issue subject to exclude specified paths from consideration rather than talk of hbase (your patch is of use to more than just hbase installs).    It looks like I can pass multiple -excludes when I run the balancer?   Is the balancer run automatically by HDFS on a period or is it only run manually?

> Make Balancer support don't move blocks belongs to Hbase
> --------------------------------------------------------
>
>                 Key: HDFS-6133
>                 URL: https://issues.apache.org/jira/browse/HDFS-6133
>             Project: Hadoop HDFS
>          Issue Type: Improvement
>          Components: balancer, namenode
>            Reporter: zhaoyunjiong
>            Assignee: zhaoyunjiong
>         Attachments: 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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