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From "Cheng (JIRA)" <>
Subject [jira] Created: (CHUKWA-253) Aggregations by User
Date Tue, 19 May 2009 21:01:45 GMT
Aggregations by User

                 Key: CHUKWA-253
             Project: Hadoop Chukwa
          Issue Type: New Feature
            Reporter: Cheng

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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