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From "Roni Burd (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-6418) Reduce Resource object creation and overhead in Capacity scheduler inner loop
Date Sat, 01 Apr 2017 07:42:41 GMT

    [ https://issues.apache.org/jira/browse/YARN-6418?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15952110#comment-15952110
] 

Roni Burd commented on YARN-6418:
---------------------------------

[~wangda] I responded to your JIRA there and posted some comments.

Let me know what you think 

> Reduce Resource object creation and overhead in Capacity scheduler inner loop
> -----------------------------------------------------------------------------
>
>                 Key: YARN-6418
>                 URL: https://issues.apache.org/jira/browse/YARN-6418
>             Project: Hadoop YARN
>          Issue Type: Improvement
>          Components: capacityscheduler, resourcemanager
>    Affects Versions: 2.7.3, 3.0.0-alpha2, 2.8
>            Reporter: Roni Burd
>            Assignee: Roni Burd
>
> Resource object is used multiple due to ResourceCalculator creates new instances on every
method call. This gets called several times on each node HB. Resource is a very expensive
object that relies on Protobufs 
> The change is to remove the need to use protobuf on the Resource object and avoid creating
many objects in the Resource Calculator all the time



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