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From "Daniel Templeton (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-6909) The performance advantages of YARN-6679 are lost when resource types are used
Date Mon, 30 Oct 2017 20:04:00 GMT

    [ https://issues.apache.org/jira/browse/YARN-6909?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16225659#comment-16225659
] 

Daniel Templeton commented on YARN-6909:
----------------------------------------

This patch looks like it's largely a refactor.  It doesn't address the issue that when there
are more than 2 resources, a PB is used even for internal operations.

> The performance advantages of YARN-6679 are lost when resource types are used
> -----------------------------------------------------------------------------
>
>                 Key: YARN-6909
>                 URL: https://issues.apache.org/jira/browse/YARN-6909
>             Project: Hadoop YARN
>          Issue Type: Sub-task
>          Components: resourcemanager
>    Affects Versions: YARN-3926
>            Reporter: Daniel Templeton
>            Assignee: Sunil G
>            Priority: Critical
>         Attachments: YARN-6909.001.patch
>
>
> YARN-6679 added the {{SimpleResource}} as a lightweight replacement for {{ResourcePBImpl}}
when a protobuf isn't needed.  With resource types enabled and anything other than memory
and CPU defined, {{ResourcePBImpl}} will always be used.



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