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From "Haohui Mai (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-7303) If there are multiple datanodes on the same host, then only one datanode is listed on the NN UI’s datanode tab
Date Tue, 28 Oct 2014 23:05:34 GMT

    [ https://issues.apache.org/jira/browse/HDFS-7303?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14187665#comment-14187665
] 

Haohui Mai commented on HDFS-7303:
----------------------------------

I suggest for simplicity let's export both host and port in JMX -- the UI can strip out the
ports if desired.

>  If there are multiple datanodes on the same host, then only one datanode is listed on
the NN UI’s datanode tab
> ---------------------------------------------------------------------------------------------------------------
>
>                 Key: HDFS-7303
>                 URL: https://issues.apache.org/jira/browse/HDFS-7303
>             Project: Hadoop HDFS
>          Issue Type: Bug
>    Affects Versions: 2.5.1
>            Reporter: Benoy Antony
>            Assignee: Benoy Antony
>            Priority: Minor
>         Attachments: HDFS-7303.patch
>
>
> If you start multiple datanodes on different ports on the the same host, only one of
them appears in the NN UI’s datanode tab.
> While this is not a common scenario, there are still scenarios where you need to start
multiple datanodes on the same host.



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