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From "Tsz Wo (Nicholas), SZE (JIRA)" <j...@apache.org>
Subject [jira] Updated: (HADOOP-5258) Provide dfsadmin functionality to report on namenode's view of network topology
Date Tue, 10 Mar 2009 23:03:50 GMT

     [ https://issues.apache.org/jira/browse/HADOOP-5258?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Tsz Wo (Nicholas), SZE updated HADOOP-5258:
-------------------------------------------

       Resolution: Fixed
    Fix Version/s: 0.21.0
     Hadoop Flags: [Incompatible change, Reviewed]  (was: [Incompatible change])
           Status: Resolved  (was: Patch Available)

I committed this.  Thanks, Jakob!

> 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
>             Fix For: 0.21.0
>
>         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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