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From "Eric Yang (JIRA)" <j...@apache.org>
Subject [jira] Updated: (HADOOP-4827) Improve data aggregation in database
Date Thu, 11 Dec 2008 17:57:44 GMT

     [ https://issues.apache.org/jira/browse/HADOOP-4827?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Eric Yang updated HADOOP-4827:
------------------------------

    Comment: was deleted

> Improve data aggregation in database
> ------------------------------------
>
>                 Key: HADOOP-4827
>                 URL: https://issues.apache.org/jira/browse/HADOOP-4827
>             Project: Hadoop Core
>          Issue Type: Improvement
>          Components: contrib/chukwa
>         Environment: Redhat EL 5.1, Java 6
>            Reporter: Eric Yang
>            Assignee: Eric Yang
>         Attachments: HADOOP-4827.patch
>
>
> Chukwa is running data aggregation in database, and it has the ability to generate SQL
statements base on macros.  On the other hand, there is also Consolidator program which Chukwa
uses to down sample data in the database.  Consolidator program can be replaced with the generic
Aggregator program plus some macros.  This enhancement will make the database aggregation
framework cleaner.

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