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From "Kihwal Lee (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HDFS-4946) Allow preferLocalNode in BlockPlacementPolicyDefault to be configurable
Date Thu, 18 Feb 2016 19:15:18 GMT

     [ https://issues.apache.org/jira/browse/HDFS-4946?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Kihwal Lee updated HDFS-4946:
-----------------------------
    Description: Allow preferLocalNode in BlockPlacementPolicyDefault to be disabled in configuration
to prevent clients from writing the first replica of every block (i.e. the entire file) to
the local DataNode.  (was: Allow preferLocalNode in BlockPlacementPolicyDefault to be disabled
in configuration to prevent a client from writing the first replica of every block (i.e. the
entire file) to the local DataNode.)

> Allow preferLocalNode in BlockPlacementPolicyDefault to be configurable
> -----------------------------------------------------------------------
>
>                 Key: HDFS-4946
>                 URL: https://issues.apache.org/jira/browse/HDFS-4946
>             Project: Hadoop HDFS
>          Issue Type: Improvement
>          Components: namenode
>    Affects Versions: 2.0.0-alpha, 3.0.0, 2.7.2
>            Reporter: James Kinley
>            Assignee: James Kinley
>         Attachments: HDFS-4946-1.patch, HDFS-4946-2.patch
>
>
> Allow preferLocalNode in BlockPlacementPolicyDefault to be disabled in configuration
to prevent clients from writing the first replica of every block (i.e. the entire file) to
the local DataNode.



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