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https://issues.apache.org/jira/browse/HDFS-4946?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Junping Du updated HDFS-4946:
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Fix Version/s: 2.8.0
> 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, 2.7.2, 3.0.0-alpha1
> Reporter: James Kinley
> Assignee: Nathan Roberts
> Fix For: 2.8.0, 2.7.3, 3.0.0-alpha1
>
> 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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