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Date: Thu, 8 Dec 2016 08:25:58 +0000 (UTC)
From: "Hitesh Sharma (JIRA)" <jira@apache.org>
To: yarn-issues@hadoop.apache.org
Message-ID: <JIRA.12982533.1466730366000.470372.1481185558730@Atlassian.JIRA>
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References: <JIRA.12982533.1466730366000@Atlassian.JIRA> <JIRA.12982533.1466730366218@arcas>
Subject: [jira] [Commented] (YARN-5292) NM Container lifecycle and state
 transitions to support for PAUSED container state.
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archived-at: Thu, 08 Dec 2016 08:26:00 -0000


    [ https://issues.apache.org/jira/browse/YARN-5292?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15731526#comment-15731526 ] 

Hitesh Sharma commented on YARN-5292:
-------------------------------------

Hi [~kasha], the design doc and the patch allow an opportunistic container to be paused and resumed. The actual implementation of the pluggable interface will be as part of [YARN-5196] and there via yarn-site.xml you can specify the preemption policy for an opportunistic container when there is a guaranteed container waiting to run (i.e. pause or kill). Currently only the NM scheduler can raise the PAUSE/RESUME events and there is no support for doing so in the container management protocol.

One of the questions on the table is if there is a need to extend support of PAUSE/RESUME to guaranteed containers and have the AMs initiate that. Would love to hear some thoughts on that and if there are any use cases that can benefit from that.

> NM Container lifecycle and state transitions to support for PAUSED container state.
> -----------------------------------------------------------------------------------
>
>                 Key: YARN-5292
>                 URL: https://issues.apache.org/jira/browse/YARN-5292
>             Project: Hadoop YARN
>          Issue Type: Sub-task
>            Reporter: Hitesh Sharma
>            Assignee: Hitesh Sharma
>         Attachments: YARN-5292.001.patch, YARN-5292.002.patch, YARN-5292.003.patch, YARN-5292.004.patch, YARN-5292.005.patch, yarn-5292.pdf
>
>
> This JIRA addresses the NM Container and state machine and lifecycle changes needed  to support pausing.


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