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 "Carlo Curino (JIRA)" <ji...@apache.org> on 2013/12/04 02:58:35 UTC

[jira] [Commented] (YARN-1471) The SLS simulator is not running the preemption policy for CapacityScheduler

    [ https://issues.apache.org/jira/browse/YARN-1471?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13838488#comment-13838488 ] 

Carlo Curino commented on YARN-1471:
------------------------------------

As I raised during the discussion in https://issues.apache.org/jira/browse/YARN-1021?focusedCommentId=13745799&page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-13745799 the simulator is not currently compatible with the CapacityScheduler preemption mechanisms.
 
More generally the "wrapping" done is likely to break interactions among components that are accessing not only the top-level interfaces, but leverage specifics of each scheduler. It would be nice to find some better wrapping mechanism. [~ywskycn], [~tucu00]... any idea?



> The SLS simulator is not running the preemption policy for CapacityScheduler
> ----------------------------------------------------------------------------
>
>                 Key: YARN-1471
>                 URL: https://issues.apache.org/jira/browse/YARN-1471
>             Project: Hadoop YARN
>          Issue Type: Bug
>            Reporter: Carlo Curino
>            Assignee: Wei Yan
>            Priority: Minor
>
> The simulator does not run the ProportionalCapacityPreemptionPolicy monitor.  This is because the policy needs to interact with a CapacityScheduler, and the wrapping done by the simulator breaks this. 



--
This message was sent by Atlassian JIRA
(v6.1#6144)