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From "Doug Cutting (JIRA)" <j...@apache.org>
Subject [jira] Commented: (MAPREDUCE-1016) Make the format of the Job History be JSON instead of Avro binary
Date Thu, 08 Oct 2009 16:32:32 GMT

    [ https://issues.apache.org/jira/browse/MAPREDUCE-1016?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12763551#action_12763551
] 

Doug Cutting commented on MAPREDUCE-1016:
-----------------------------------------

> I'd like to propose the following that may make it easier toward future extension without
requiring too much special case code to support backward compatibility [ ... ]

I think we're over-engineering this.  Can we take this to a separate issue?

> Make the format of the Job History be JSON instead of Avro binary
> -----------------------------------------------------------------
>
>                 Key: MAPREDUCE-1016
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-1016
>             Project: Hadoop Map/Reduce
>          Issue Type: Bug
>            Reporter: Owen O'Malley
>            Assignee: Doug Cutting
>             Fix For: 0.21.0, 0.22.0
>
>         Attachments: MAPREDUCE-1016.patch
>
>
> I forgot that one of the features that would be nice is to off load the job history display
from the JobTracker. That will be a lot easier, if the job history is stored in JSON. Therefore,
I think we should change the storage now to prevent incompatibilities later.

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