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 "Karthik Kambatla (JIRA)" <ji...@apache.org> on 2014/12/24 01:38:13 UTC

[jira] [Commented] (YARN-2990) FairScheduler's delay-scheduling always waits for node-local and rack-local delays, even for off-rack-only requests

    [ https://issues.apache.org/jira/browse/YARN-2990?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14257730#comment-14257730 ] 

Karthik Kambatla commented on YARN-2990:
----------------------------------------

AM containers don't care about locality, so fixing this would improve the app launch time. 

> FairScheduler's delay-scheduling always waits for node-local and rack-local delays, even for off-rack-only requests
> -------------------------------------------------------------------------------------------------------------------
>
>                 Key: YARN-2990
>                 URL: https://issues.apache.org/jira/browse/YARN-2990
>             Project: Hadoop YARN
>          Issue Type: Bug
>          Components: fairscheduler
>    Affects Versions: 2.6.0
>            Reporter: Karthik Kambatla
>            Assignee: Karthik Kambatla
>         Attachments: yarn-2990-test.patch
>
>
> Looking at the FairScheduler, it appears the node/rack locality delays are used for all requests, even those that are only off-rack. 
> More details in comments. 



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