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From "Zhe Zhang (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-7702) Move metadata across namenode - Effort to a real distributed namenode
Date Wed, 04 Feb 2015 23:35:35 GMT

    [ https://issues.apache.org/jira/browse/HDFS-7702?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14306216#comment-14306216
] 

Zhe Zhang commented on HDFS-7702:
---------------------------------

Thanks [~raviprak] for clarifying. It does sound like a very good extension to federation.
[~xiyunyue] Maybe the JIRA title and description should be updated to refer to federation?
HDFS-7737 is currently named "Implement distributed namenode".

> Move metadata across namenode - Effort to a real distributed namenode
> ---------------------------------------------------------------------
>
>                 Key: HDFS-7702
>                 URL: https://issues.apache.org/jira/browse/HDFS-7702
>             Project: Hadoop HDFS
>          Issue Type: Sub-task
>            Reporter: Ray
>            Assignee: Ray
>
> Implement a tool can show in memory namespace tree structure with weight(size) and a
API can move metadata across different namenode. The purpose is moving data efficiently and
faster, without moving blocks on datanode.



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