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From "Naganarasimha G R (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-4529) Yarn CLI killing applications in batch
Date Mon, 04 Jan 2016 04:37:39 GMT

    [ https://issues.apache.org/jira/browse/YARN-4529?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15080688#comment-15080688
] 

Naganarasimha G R commented on YARN-4529:
-----------------------------------------

Thanks [~linyiqun] for providing the patches,
IMO it would be better to get opinion from other community members and then make some progress
as it would avoid some unnecessary rework effort. And its just in initial stage, may be it
would be better to discuss what would be the right approach for the scenarios which we are
coming across and then come up with jira's and work for it. Thoughts? 
In btw wanted to know whats the scenario you want to address by providing a batch kill ? One
scenario which we had encountered was lot of application had got recovered and the applications
were hanging and finally we had to write some script to get all the apps of particular state
and kill. Hence i was thinking providing an admin option should be better to kill in such
scenarios. 
And IMO it would be good to have in combination like {{kill applications in particular state
of particular user in particular queue}} and thought it would be better be in {{rmadmin}}
cli, thoughts?
cc/ [~ozawa] & [~sunilg]



> Yarn CLI killing applications in batch
> --------------------------------------
>
>                 Key: YARN-4529
>                 URL: https://issues.apache.org/jira/browse/YARN-4529
>             Project: Hadoop YARN
>          Issue Type: New Feature
>          Components: applications, client
>    Affects Versions: 2.7.1
>            Reporter: Lin Yiqun
>            Assignee: Lin Yiqun
>         Attachments: YARN-4529.001.patch
>
>
> We have not a good way to kill applications conveniently when starting some apps unexpected.
At present, we have to kill them one by one. We can add some kill command that can kill apps
in batch, like these:
> {code}
> -killByAppStates <States>       The states of application that will be killed.
> -killByUser <User name>         Kill running-state applications of specific user.
> {code}



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