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 "Chen He (JIRA)" <ji...@apache.org> on 2014/04/03 17:54:18 UTC

[jira] [Commented] (YARN-1612) Change Fair Scheduler to not disable delay scheduling by default

    [ https://issues.apache.org/jira/browse/YARN-1612?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13958905#comment-13958905 ] 

Chen He commented on YARN-1612:
-------------------------------

Hi [~sandyr]
Thank you for the reply. However, in FairScheduler source code, the "nodeLocalityDelayMs" gets the waiting time from Configuration where "DEFAULT_LOCALITY_DELAY_NODE_MS" is -1ms. Does "Change Fair Scheduler to not disable delay scheduling by default" mean to set the "DEFAULT_LOCALITY_DELAY_NODE_MS" according to the size of cluster? In Matei's paper, he suggests this waiting time to be 3 times of heartbeat interval which is calculated from the size of cluster.

> Change Fair Scheduler to not disable delay scheduling by default
> ----------------------------------------------------------------
>
>                 Key: YARN-1612
>                 URL: https://issues.apache.org/jira/browse/YARN-1612
>             Project: Hadoop YARN
>          Issue Type: Improvement
>          Components: scheduler
>            Reporter: Sandy Ryza
>            Assignee: Chen He
>




--
This message was sent by Atlassian JIRA
(v6.2#6252)