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Posted to hdfs-dev@hadoop.apache.org by "Nathan Roberts (JIRA)" <ji...@apache.org> on 2016/02/18 17:13:18 UTC

[jira] [Reopened] (HDFS-4946) Allow preferLocalNode in BlockPlacementPolicyDefault to be configurable

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

Nathan Roberts reopened HDFS-4946:
----------------------------------

[~jrkinley], re-opening because this is a very useful patch. Let me know if you disagree or would like me to assign it to myself to close out any remaining issues.

> 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
>            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 a client from writing the first replica of every block (i.e. the entire file) to the local DataNode.



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