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Date: Tue, 10 Mar 2009 15:51:50 -0700 (PDT)
From: "Jakob Homan (JIRA)" <jira@apache.org>
To: core-dev@hadoop.apache.org
Subject: [jira] Updated: (HADOOP-5258) Provide dfsadmin functionality to
 report on namenode's view of network topology
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     [ https://issues.apache.org/jira/browse/HADOOP-5258?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Jakob Homan updated HADOOP-5258:
--------------------------------

    Attachment: HADOOP-5258.patch

> Provide dfsadmin functionality to report on namenode's view of network topology
> -------------------------------------------------------------------------------
>
>                 Key: HADOOP-5258
>                 URL: https://issues.apache.org/jira/browse/HADOOP-5258
>             Project: Hadoop Core
>          Issue Type: New Feature
>          Components: dfs
>            Reporter: Jakob Homan
>            Assignee: Jakob Homan
>         Attachments: HADOOP-5258.patch, HADOOP-5258.patch, HADOOP-5258.patch, HADOOP-5258.patch
>
>
> As discussed in HADOOP-4954, it would be useful to be able to query the namenode to its current view on the network topology of racks and datanodes.  This would allow ops to compare what the namenode sees with what they expect it to see.  

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