You are viewing a plain text version of this content. The canonical link for it is here.

Posted to yarn-issues@hadoop.apache.org by "Arun Suresh (JIRA)" <ji...@apache.org> on 2015/09/18 23:05:05 UTC

[jira] [Commented] (YARN-3920) FairScheduler container reservation on a node should be configurable to limit it to large containers

    [ https://issues.apache.org/jira/browse/YARN-3920?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14876408#comment-14876408 ] 

Arun Suresh commented on YARN-3920:
-----------------------------------

Committed to trunk and branch-2.

> FairScheduler container reservation on a node should be configurable to limit it to large containers
> ----------------------------------------------------------------------------------------------------
>
>                 Key: YARN-3920
>                 URL: https://issues.apache.org/jira/browse/YARN-3920
>             Project: Hadoop YARN
>          Issue Type: Improvement
>          Components: fairscheduler
>            Reporter: Anubhav Dhoot
>            Assignee: Anubhav Dhoot
>         Attachments: YARN-3920.004.patch, YARN-3920.004.patch, YARN-3920.004.patch, YARN-3920.004.patch, YARN-3920.005.patch, yARN-3920.001.patch, yARN-3920.002.patch, yARN-3920.003.patch
>
>
> Reserving a node for a container was designed for preventing large containers from starvation from small requests that keep getting into a node. Today we let this be used even for a small container request. This has a huge impact on scheduling since we block other scheduling requests until that reservation is fulfilled. We should make this configurable so its impact can be minimized by limiting it for large container requests as originally intended. 



--
This message was sent by Atlassian JIRA
(v6.3.4#6332)