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From "Karthik Kambatla (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-2883) Queuing of container requests in the NM
Date Fri, 15 Apr 2016 14:58:25 GMT

    [ https://issues.apache.org/jira/browse/YARN-2883?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15243066#comment-15243066
] 

Karthik Kambatla commented on YARN-2883:
----------------------------------------

The latest patch (YARN-2883.013.patch) looks mostly good to me, barring some unaddressed comments
from my previous review - visibility of methods in ContainersMonitorImpl and the config itself.
As I said, for the config, I am comfortable filing a follow-up. And, yeah, the findbugs. 

> Queuing of container requests in the NM
> ---------------------------------------
>
>                 Key: YARN-2883
>                 URL: https://issues.apache.org/jira/browse/YARN-2883
>             Project: Hadoop YARN
>          Issue Type: Sub-task
>          Components: nodemanager, resourcemanager
>            Reporter: Konstantinos Karanasos
>            Assignee: Konstantinos Karanasos
>         Attachments: YARN-2883-trunk.004.patch, YARN-2883-trunk.005.patch, YARN-2883-trunk.006.patch,
YARN-2883-trunk.007.patch, YARN-2883-trunk.008.patch, YARN-2883-trunk.009.patch, YARN-2883-trunk.010.patch,
YARN-2883-trunk.011.patch, YARN-2883-trunk.012.patch, YARN-2883-trunk.013.patch, YARN-2883-yarn-2877.001.patch,
YARN-2883-yarn-2877.002.patch, YARN-2883-yarn-2877.003.patch, YARN-2883-yarn-2877.004.patch,
YARN-2883.013.patch
>
>
> We propose to add a queue in each NM, where queueable container requests can be held.
> Based on the available resources in the node and the containers in the queue, the NM
will decide when to allow the execution of a queued container.
> In order to ensure the instantaneous start of a guaranteed-start container, the NM may
decide to pre-empt/kill running queueable containers.



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