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Date: Tue, 12 Jan 2016 01:52:39 +0000 (UTC)
From: "Naganarasimha G R (JIRA)" <jira@apache.org>
To: yarn-issues@hadoop.apache.org
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Subject: [jira] [Commented] (YARN-4371) "yarn application -kill" should take
 multiple application ids
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    [ https://issues.apache.org/jira/browse/YARN-4371?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15093121#comment-15093121 ] 

Naganarasimha G R commented on YARN-4371:
-----------------------------------------

Hi All,
Sorry for jumping in late,
bq. It's not very helpful to say "Application doesn't exist in RM." and not report which one(s) they are.
Even i feel the same for this point and at least when i use kill -9 <non existant PID> it reports as
{code}
kill -9 9999 10000
bash: kill: (9999) - No such process
bash: kill: (10000) - No such process
{code}
so would prefer to have the same behavior here too.

bq. I think there's also an issue where the user can specify multiple arguments and the command will silently ignore their requests. ... Since we're no longer checking for a specific number of arguments, I think the user can throw in all sorts of other options that will be silently ignored, probably to the surprise of the user.
I agree there is this possibility, but IMO it will be much user friendly to have space as delimiter than any other character like *","* and its similar to the unix kill command . Also to an extent we are taking care by checking {{if (args.length < 3)}}, 
Thoughts ?

> "yarn application -kill" should take multiple application ids
> -------------------------------------------------------------
>
>                 Key: YARN-4371
>                 URL: https://issues.apache.org/jira/browse/YARN-4371
>             Project: Hadoop YARN
>          Issue Type: Improvement
>            Reporter: Tsuyoshi Ozawa
>            Assignee: Sunil G
>         Attachments: 0001-YARN-4371.patch, 0002-YARN-4371.patch, 0003-YARN-4371.patch
>
>
> Currently we cannot pass multiple applications to "yarn application -kill" command. The command should take multiple application ids at the same time. 
> Each entries should be separated with whitespace like:
> {code}
> yarn application -kill application_1234_0001 application_1234_0007 application_1234_0012
> {code}



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