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From "Eric Yang (JIRA)" <j...@apache.org>
Subject [jira] Updated: (CHUKWA-430) Narrow down input for FSM mapreduce job
Date Wed, 16 Dec 2009 02:51:18 GMT

     [ https://issues.apache.org/jira/browse/CHUKWA-430?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Eric Yang updated CHUKWA-430:
-----------------------------

    Resolution: Fixed
        Status: Resolved  (was: Patch Available)

I just committed this, thanks Ari and Jiaqi.

> Narrow down input for FSM mapreduce job
> ---------------------------------------
>
>                 Key: CHUKWA-430
>                 URL: https://issues.apache.org/jira/browse/CHUKWA-430
>             Project: Hadoop Chukwa
>          Issue Type: Bug
>          Components: MR Data Processors
>    Affects Versions: 0.4.0
>            Reporter: Eric Yang
>            Assignee: Eric Yang
>             Fix For: 0.4.0
>
>         Attachments: CHUKWA-430.patch
>
>
> FSMDataloader supplies all demux output data to FSM state machine.  This is not efficient
because most of the data type do not contribute to state generation.  According to Jiaqi,
the state machine requires the following types:
>  JobHistoryTaskDataMapper:
> /chukwa/repos/chukwa/JobData
> /chukwa/repos/chukwa/TaskData
> TaskTrackerClientTraceMapper:
> /chukwa/repos/chukwa/ClientTraceDetailed
> DataNodeClientTraceMapper:
> /chukwa/repos/chukwa/ClientTraceDetailed
> This jira is to optimize the data loader supplied input, and narrow down the required
input type.

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