[jira] [Updated] (YARN-3692) Allow REST API to set a user generated message when killing an application

["Rohith Sharma K S (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/YARN-3692?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Rohith Sharma K S updated YARN-3692:
------------------------------------
    Attachment: 0002-YARN-3692.patch

Rebased the patch with slight modifications from previous. [~naganarasimha_gr@apache.org] kindly review the patch. 

> 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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