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From "Eric Yang (JIRA)" <>
Subject [jira] Updated: (CHUKWA-316) jobconf Error in mr_job_* table
Date Fri, 19 Jun 2009 22:48:07 GMT


Eric Yang updated CHUKWA-316:

       Resolution: Fixed
    Fix Version/s: 0.3.0
           Status: Resolved  (was: Patch Available)

I just committed this, thanks Terence.

> jobconf Error in mr_job_* table
> -------------------------------
>                 Key: CHUKWA-316
>                 URL:
>             Project: Hadoop Chukwa
>          Issue Type: Bug
>          Components: Data Processors
>    Affects Versions: 0.2.0
>         Environment: Redhat EL 5,1, Java 6
>            Reporter: Eric Yang
>            Assignee: Eric Yang
>            Priority: Blocker
>             Fix For: 0.2.0, 0.3.0
>         Attachments: CHUKWA-316.patch
> The current mr_job table, jobconf columns contains the content of jobconf for some rows,
and other rows contains the
> path of the jobconf.
> In the sequence file, jobconf is the field for location of the jobconf path.  The content
of the jobconf is
> JOBCONF-JSON.  In database table, jobconf is the content of the jobconf.  Unfortunately,
the new automatic mapping will
> detect sequence file "jobconf" field is a match with "jobconf" column in the database.
 Hence the
> last update wins.
> To work around this problem, we need ability to undefine sequence file field to match
to database column.
> Personally, I think indirect data translation mapping is the wrong thing to do.  The
mapping should be as straight forward as possible.

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