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From "Wangda Tan (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-2762) RMAdminCLI node-labels-related args should be trimmed and checked before sending to RM
Date Thu, 04 Dec 2014 02:02:13 GMT

    [ https://issues.apache.org/jira/browse/YARN-2762?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14233812#comment-14233812
] 

Wangda Tan commented on YARN-2762:
----------------------------------

Hi [~rohithsharma],
Thanks for working on this, the trimming itself looks good to me, but some comments about
error message handling

I think we should make the error message more consistent, my suggestion is:
- If no labels specified when adding/removing labels, the message is "No cluster node-labels
are specified"
- If no node-to-labels mapping specified when replace labels, the message is "No node-to-labels
mappings are specified"

And we should make the two kinds of error message as a pre-defined final field of RMAdminCLI.

Thoughts?  

> RMAdminCLI node-labels-related args should be trimmed and checked before sending to RM
> --------------------------------------------------------------------------------------
>
>                 Key: YARN-2762
>                 URL: https://issues.apache.org/jira/browse/YARN-2762
>             Project: Hadoop YARN
>          Issue Type: Sub-task
>          Components: resourcemanager
>            Reporter: Rohith
>            Assignee: Rohith
>            Priority: Minor
>         Attachments: YARN-2762.1.patch, YARN-2762.2.patch, YARN-2762.patch
>
>
> All NodeLabel args validation's are done at server side. The same can be done at RMAdminCLI
so that unnecessary RPC calls can be avoided.
> And for the input such as "x,y,,z,", no need to add empty string instead can be skipped.



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