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From "Robert Chansler (JIRA)" <j...@apache.org>
Subject [jira] Updated: (HADOOP-4029) NameNode should report status and performance for each replica of image and log
Date Tue, 03 Mar 2009 18:16:56 GMT

     [ https://issues.apache.org/jira/browse/HADOOP-4029?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel

Robert Chansler updated HADOOP-4029:

    Release Note: Added name node storage information to the dfshealth page, and moved data
node information to a separated page.  (was: Add NameNode storage information to the dfshealth
page and move DataNode information to a separated page.)
    Hadoop Flags: [Incompatible change, Reviewed]  (was: [Reviewed, Incompatible change])

Edit release note for publication.

> NameNode should report status and performance for each replica of image and log
> -------------------------------------------------------------------------------
>                 Key: HADOOP-4029
>                 URL: https://issues.apache.org/jira/browse/HADOOP-4029
>             Project: Hadoop Core
>          Issue Type: New Feature
>          Components: dfs
>    Affects Versions: 0.20.0
>            Reporter: Robert Chansler
>            Assignee: Boris Shkolnik
>             Fix For: 0.20.0
>         Attachments: HADOOP-4029-1.patch, HADOOP-4029-2.patch, HADOOP-4029.patch
> The administrator should have immediate access to the status of each replica. In addition
to reporting whether the replica is active or not, measured performance should be reported
so as to indicate whether a replica might impact cluster performance or might be in danger
of failing.
> We're probably not close to doing automated replica fail over, but we can give the administrator
some clues.

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