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From "Rohith Sharma K S (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-3692) Allow REST API to set a user generated message when killing an application
Date Tue, 06 Sep 2016 08:22:20 GMT

    [ https://issues.apache.org/jira/browse/YARN-3692?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15466801#comment-15466801
] 

Rohith Sharma K S commented on YARN-3692:
-----------------------------------------

ahh.. compilation failure.. pretty bad on myself:-( Thanks Naga for finding it. 

For 2.9, I do changes only with REST service so that it can be compatible with branch-2. For
client support let me create a separate JIRA where in compatibility can be discussed and handle
only for trunk. 

> Allow REST API to set a user generated message when killing an application
> --------------------------------------------------------------------------
>
>                 Key: YARN-3692
>                 URL: https://issues.apache.org/jira/browse/YARN-3692
>             Project: Hadoop YARN
>          Issue Type: Improvement
>            Reporter: Rajat Jain
>            Assignee: Rohith Sharma K S
>         Attachments: 0001-YARN-3692.patch, 0002-YARN-3692.patch
>
>
> Currently YARN's REST API supports killing an application without setting a diagnostic
message. It would be good to provide that support.
> *Use Case*
> Usually this helps in workflow management in a multi-tenant environment when the workflow
scheduler (or the hadoop admin) wants to kill a job - and let the user know the reason why
the job was killed. Killing the job by setting a diagnostic message is a very good solution
for that. Ideally, we can set the diagnostic message on all such interface:
> yarn kill -applicationId ... -diagnosticMessage "some message added by admin/workflow"
> REST API { 'state': 'KILLED', 'diagnosticMessage': 'some message added by admin/workflow'}



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