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From "Haohui Mai (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-8194) Add administrative tool to be able to examine the NN's view of DN storages
Date Tue, 21 Apr 2015 03:45:59 GMT

    [ https://issues.apache.org/jira/browse/HDFS-8194?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14504246#comment-14504246
] 

Haohui Mai commented on HDFS-8194:
----------------------------------

What about making the information available through JMX / JSON so that the UI can benefit
from it? Or if possible, merging the tool referred in this jira into the UI.



> Add administrative tool to be able to examine the NN's view of DN storages
> --------------------------------------------------------------------------
>
>                 Key: HDFS-8194
>                 URL: https://issues.apache.org/jira/browse/HDFS-8194
>             Project: Hadoop HDFS
>          Issue Type: New Feature
>          Components: namenode
>    Affects Versions: 2.7.0
>            Reporter: Aaron T. Myers
>            Assignee: Colin Patrick McCabe
>
> The NN has long had facilities to be able to list all of the DNs that are registered
with it. It would be great if there were an administrative tool be able to list all of the
individual storages that the NN is tracking.



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