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From "Jie Huang (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (CHUKWA-650) Re-configure Demux ReduceNumber without re-starting the DemuxManager service
Date Tue, 24 Jul 2012 02:00:33 GMT

    [ https://issues.apache.org/jira/browse/CHUKWA-650?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13421099#comment-13421099
] 

Jie Huang commented on CHUKWA-650:
----------------------------------

Oops, I will upload the correct patch soon. 
                
> Re-configure Demux ReduceNumber without re-starting the DemuxManager service
> ----------------------------------------------------------------------------
>
>                 Key: CHUKWA-650
>                 URL: https://issues.apache.org/jira/browse/CHUKWA-650
>             Project: Chukwa
>          Issue Type: Improvement
>          Components: Data Processors
>    Affects Versions: 0.6.0
>            Reporter: Jie Huang
>            Assignee: Jie Huang
>
> Currently, DemuxManager controls the Demux's reduce number by reading "CHUKWA_DEMUX_REDUCER_COUNT_FIELD"
at the initialization part. It is impossible to tune that reduce number before the next round
of demux happens. The only way is to restart that DemuxManager service. I wonder if it is
OK to parse that configuration item in  runDemux() function.

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