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From "Doug Cutting (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HADOOP-195) transfer map output transfer with http instead of rpc
Date Wed, 24 May 2006 19:14:30 GMT
    [ http://issues.apache.org/jira/browse/HADOOP-195?page=comments#action_12413168 ] 

Doug Cutting commented on HADOOP-195:
-------------------------------------

So you'd prefer we commit this as-is & clean it up later?  Or should we hold off a bit
& wait for Owen's HTTP-based map output collector?

> transfer map output transfer with http instead of rpc
> -----------------------------------------------------
>
>          Key: HADOOP-195
>          URL: http://issues.apache.org/jira/browse/HADOOP-195
>      Project: Hadoop
>         Type: Improvement

>   Components: mapred
>     Versions: 0.2
>     Reporter: Owen O'Malley
>     Assignee: Owen O'Malley
>      Fix For: 0.3
>  Attachments: MapFileSimulator.java, data-transfer-chart.pdf, mapfilesimulator-big.txt,
mapfilesimulator-sort2.txt, netstat.log, netstat.xls, parallel-copiers.txt
>
> The data transfer of the map output should be transfered via http instead rpc, because
rpc is very slow for this application and the timeout behavior is suboptimal. (server sends
data and client ignores it because it took more than 10 seconds to be received.)

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