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From "Cheng (JIRA)" <>
Subject [jira] Commented: (CHUKWA-253) Aggregations by User
Date Tue, 02 Jun 2009 17:33:07 GMT


Cheng commented on CHUKWA-253:

Just talked to Eric. CHUKWA_IDENT_STRING might not be the right source for cluster name. Also
each chukwa instance could monitor more than one cluster. We may need a conf file to specify
all clusters.

> Aggregations by User
> --------------------
>                 Key: CHUKWA-253
>                 URL:
>             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

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