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Posted to mapreduce-issues@hadoop.apache.org by "Gera Shegalov (JIRA)" <ji...@apache.org> on 2014/01/03 03:51:50 UTC

[jira] [Commented] (MAPREDUCE-5696) Add Localization counters to MR

    [ https://issues.apache.org/jira/browse/MAPREDUCE-5696?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13861135#comment-13861135 ] 

Gera Shegalov commented on MAPREDUCE-5696:
------------------------------------------

[~hitesh], I think we can move these few YARN changes to YARN-1529 instead of creating a new JIRA. I'll upload new patch versions.

> Add Localization counters to MR
> -------------------------------
>
>                 Key: MAPREDUCE-5696
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-5696
>             Project: Hadoop Map/Reduce
>          Issue Type: Improvement
>          Components: mrv2
>            Reporter: Gera Shegalov
>            Assignee: Gera Shegalov
>         Attachments: LocalizationCounters.png, MAPREDUCE-5696.v01.patch
>
>
> Users are often unaware of localization cost that their jobs incur. To measure effectiveness of localization caches it is necessary to expose the overhead in the form of user-visible metrics. The purpose of this JIRA is to compliment YARN-1529. While YARN-1529 attempts to provide a cluster-wide view to cluster admins, this JIRA focuses on exposing the localization overhead on per-job basis to the job owner/user.



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