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From "Jing Zhao (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-9112) Haadmin fails if multiple name service IDs are configured
Date Mon, 21 Sep 2015 22:39:07 GMT

    [ https://issues.apache.org/jira/browse/HDFS-9112?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14901549#comment-14901549
] 

Jing Zhao commented on HDFS-9112:
---------------------------------

We had a discussion in HDFS-6376 about this and [~dlmarion]'s point is it's better to require
admin to specify the name service id using "-ns" option in haadmin commands in such a complex
configuration scenario (please see his comment [here|https://issues.apache.org/jira/browse/HDFS-6376?focusedCommentId=14108157&page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-14108157]).


> Haadmin fails if multiple name service IDs are configured
> ---------------------------------------------------------
>
>                 Key: HDFS-9112
>                 URL: https://issues.apache.org/jira/browse/HDFS-9112
>             Project: Hadoop HDFS
>          Issue Type: Bug
>          Components: tools
>    Affects Versions: 2.7.1
>            Reporter: Anu Engineer
>            Assignee: Anu Engineer
>         Attachments: HDFS-9112.001.patch
>
>
> In HDFS-6376 we supported a feature for distcp that allows multiple NameService IDs to
be specified so that we can copy from two HA enabled clusters.
> That confuses haadmin command since we have a check in DFSUtil#getNamenodeServiceAddr
which fails if it finds more than 1 name in that property.



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