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From "Aaron T. Myers (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HDFS-1804) Modify or add a new block-volume device choosing policy that looks at free space
Date Wed, 03 Apr 2013 23:47:16 GMT

     [ https://issues.apache.org/jira/browse/HDFS-1804?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Aaron T. Myers updated HDFS-1804:
---------------------------------

    Status: Patch Available  (was: Open)
    
> Modify or add a new block-volume device choosing policy that looks at free space
> --------------------------------------------------------------------------------
>
>                 Key: HDFS-1804
>                 URL: https://issues.apache.org/jira/browse/HDFS-1804
>             Project: Hadoop HDFS
>          Issue Type: New Feature
>          Components: datanode
>    Affects Versions: 2.0.4-alpha
>            Reporter: Harsh J
>            Assignee: Aaron T. Myers
>            Priority: Minor
>         Attachments: HDFS-1804.patch
>
>
> HDFS-1120 introduced pluggable block-volume choosing policies, but still carries the
vanilla RoundRobin as its default.
> An additional implementation that also takes into consideration the free space remaining
on the disk (or other params) should be a good addition as an alternative to vanilla RR.

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