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From "Junping Du (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-4131) Add API and CLI to kill container on given containerId
Date Tue, 08 Sep 2015 17:38:46 GMT

    [ https://issues.apache.org/jira/browse/YARN-4131?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14735238#comment-14735238
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Junping Du commented on YARN-4131:
----------------------------------

bq.  I'd actually leave out the waiting for the operation to complete: make it fully async
and let caller wait if they want to.
The logic in YarnClientImpl should demonstrate the async way of consuming this API. It basically
call killContainer() and looping to check return code (true means container is still active,
so kill event get sent). Anything else to do, like: put some explicit async tag on this API?

bq.  is there any way to set the exit code? I'd like to signal pre-emption and out of memory
events at some point.
Do you mean how we can know if container get killed successfully? Basically two ways, one
is just like mentioned above, call killContainer() return false means container is gone; or
call getContainerReport() or getContainers() in ApplicationBaseProtocol which return active
containers only.

> Add API and CLI to kill container on given containerId
> ------------------------------------------------------
>
>                 Key: YARN-4131
>                 URL: https://issues.apache.org/jira/browse/YARN-4131
>             Project: Hadoop YARN
>          Issue Type: Sub-task
>          Components: applications, client
>            Reporter: Junping Du
>            Assignee: Junping Du
>         Attachments: YARN-4131-demo-2.patch, YARN-4131-demo.patch
>
>
> Per YARN-3337, we need a handy tools to kill container in some scenarios.



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