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Posted to yarn-issues@hadoop.apache.org by "Arun Suresh (JIRA)" <ji...@apache.org> on 2017/12/20 19:49:00 UTC

[jira] [Commented] (YARN-7676) Fix inconsistent priority ordering in Priority and SchedulerRequestKey

    [ https://issues.apache.org/jira/browse/YARN-7676?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16298987#comment-16298987 ] 

Arun Suresh commented on YARN-7676:
-----------------------------------

Thanks for raising this Botong.
[~leftnoteasy] / [~sunilg] will this affect application priority (ordering of the apps itself) ? Looking at {{TestApplicationPriority}} am guessing it would.

> Fix inconsistent priority ordering in Priority and SchedulerRequestKey
> ----------------------------------------------------------------------
>
>                 Key: YARN-7676
>                 URL: https://issues.apache.org/jira/browse/YARN-7676
>             Project: Hadoop YARN
>          Issue Type: Bug
>            Reporter: Botong Huang
>            Assignee: Botong Huang
>            Priority: Minor
>         Attachments: YARN-7676.v1.patch
>
>
> Today the priority ordering in _Priority.compareTo()_ and _SchedulerRequestKey.compareTo()_ is inconsistent. Both _compareTo_ method is trying to reverse the order: 
> P0.compareTo(P1) > 0, meaning priority wise P0 < P1. However, SK(P0).comapreTo(SK(P1)) < 0, meaning priority wise SK(P0) > SK(P1). 
> This is attempting to fix that by undo both reversing logic. So that priority wise P0 > P1 and SK(P0) > SK(P1). 



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