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From "Jerome Boulon (JIRA)" <j...@apache.org>
Subject [jira] Commented: (CHUKWA-253) Aggregations by User
Date Tue, 02 Jun 2009 17:41:07 GMT

    [ https://issues.apache.org/jira/browse/CHUKWA-253?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12715601#action_12715601
] 

Jerome Boulon commented on CHUKWA-253:
--------------------------------------

Cluster should be manually specified. Also keep in mind that you can use a set of parameter
file for the same query.
This way in order to add another cluster you only have to drop one additional parameter file.

> Aggregations by User
> --------------------
>
>                 Key: CHUKWA-253
>                 URL: https://issues.apache.org/jira/browse/CHUKWA-253
>             Project: Hadoop Chukwa
>          Issue Type: New Feature
>            Reporter: Cheng
>         Attachments: chukwa-253-1.patch, chukwa-253.patch
>
>
> Typically a user submits jobs with similar characteristics. Aggregating the following
metrics based on users can help
> quickly identify VIP users and how their jobs look like:
> -       slot-hours used for map tasks, for reduce tasks
> -       total jobs, jobs failed
> -       data-local-maps,  rack-local-maps, remote-maps
> -       total map-input-bytes, reduce-output-records
> -       total map tasks, total reduce tasks
> The granularity of the aggregation can be as coarse as daily. Data may be used to report
top-K users in certain
> categories. Data shall be available as chukwa records (namely, one record per day per
user).

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