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From "Tsz Wo Nicholas Sze (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HDFS-7310) Mover can give first priority to local DN if it has target storage type available in local DN
Date Mon, 08 Jun 2015 04:21:00 GMT

     [ https://issues.apache.org/jira/browse/HDFS-7310?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Tsz Wo Nicholas Sze updated HDFS-7310:
--------------------------------------
    Issue Type: Sub-task  (was: Improvement)
        Parent: HDFS-7197

> Mover can give first priority to local DN if it has target storage type available in
local DN
> ---------------------------------------------------------------------------------------------
>
>                 Key: HDFS-7310
>                 URL: https://issues.apache.org/jira/browse/HDFS-7310
>             Project: Hadoop HDFS
>          Issue Type: Sub-task
>          Components: balancer & mover
>    Affects Versions: 3.0.0
>            Reporter: Uma Maheswara Rao G
>            Assignee: Vinayakumar B
>             Fix For: 2.7.0
>
>         Attachments: HDFS-7310-001.patch, HDFS-7310-002.patch, HDFS-7310-003.patch, HDFS-7310-004.patch
>
>
> Currently Mover logic may move blocks to any DN which had target storage type. But if
the src DN has target storage type then mover can give highest priority to local DN. If local
DN does not contains target storage type, then it can assign to any DN as the current logic
does.
>   This is a thought, have not go through the code fully yet.
> Thoughts?



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