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Posted to mapreduce-issues@hadoop.apache.org by "Doug Cutting (JIRA)" <ji...@apache.org> on 2009/10/17 00:59:31 UTC

[jira] Updated: (MAPREDUCE-1016) Make the format of the Job History be JSON instead of Avro binary

     [ https://issues.apache.org/jira/browse/MAPREDUCE-1016?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Doug Cutting updated MAPREDUCE-1016:
------------------------------------

    Attachment: MAPREDUCE-1016.patch

Here's a new version of this patch that also upgrades to Avro 1.2.0.

In Avro 1.2, generated classes are no longer all nested within an interface, which mandated a systematic update to references to the generated classes.

> 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, 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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