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https://issues.apache.org/jira/browse/HDFS-13226?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16390595#comment-16390595
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Íñigo Goiri commented on HDFS-13226:
------------------------------------

I'd be OK switching to using {void}, we intenrally don't have many issues 
deploying this kind of chances.
Not sure what others think, [~linyiqun]?

For the exception, we should figure out a way to check the exception in the 
{{RouterAdmin}}.
A minor comment, avoid using the {{Assert.}} prefix.

> RBF: We should throw the failure validate and refuse this mount entry
> ---------------------------------------------------------------------
>
>                 Key: HDFS-13226
>                 URL: https://issues.apache.org/jira/browse/HDFS-13226
>             Project: Hadoop HDFS
>          Issue Type: Sub-task
>          Components: hdfs
>    Affects Versions: 3.2.0
>            Reporter: maobaolong
>            Assignee: maobaolong
>            Priority: Major
>              Labels: RBF
>             Fix For: 3.2.0
>
>         Attachments: HDFS-13226.001.patch, HDFS-13226.002.patch, 
> HDFS-13226.003.patch, HDFS-13226.004.patch
>
>
> one of the mount entry source path rule is that the source path must start 
> with '\', somebody didn't follow the rule and execute the following command:
> {code:bash}
> $ hdfs dfsrouteradmin -add addnode/ ns1 /addnode/
> {code}
> But, the console show we are successful add this entry.



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