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From "Bill Graham (JIRA)" <j...@apache.org>
Subject [jira] Commented: (CHUKWA-473) Make default processor configurable
Date Fri, 09 Apr 2010 16:26:50 GMT

    [ https://issues.apache.org/jira/browse/CHUKWA-473?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12855458#action_12855458
] 

Bill Graham commented on CHUKWA-473:
------------------------------------

I've got a patch ready that makes the default map processor configurable, but just wanted
to clarify how we want to do the same for the reducer processor. It looks for a class based
on key.getReduceType() and falls back on IdentityReducer in ReduceProcessorFactory. Assuming
that's what we want to be able to set a default for.

If so I need to change the signature of {{ReduceProcessorFactory.getProcessor(String reduceType)}}
to either take a JobConf object or a default processor string, since I don't think that method
should return null and delegate the default logic to the caller. I'm leaning slightly towards
the later. Any opinions either way? 

> Make default processor configurable
> -----------------------------------
>
>                 Key: CHUKWA-473
>                 URL: https://issues.apache.org/jira/browse/CHUKWA-473
>             Project: Hadoop Chukwa
>          Issue Type: New Feature
>            Reporter: Bill Graham
>            Assignee: Bill Graham
>
> The default processor is hard coded to {{DefaultProcessor}} in the {{Demux}} class. This
should be configurable.

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