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http://issues.apache.org/jira/browse/NUTCH-207?page=comments#action_12365462 ] 

Rod Taylor commented on NUTCH-207:
----------------------------------

Code was by Radu Mateescu with additional kibitzing by myself.

> Bandwidth target for fetcher rather than a thread count
> -------------------------------------------------------
>
>          Key: NUTCH-207
>          URL: http://issues.apache.org/jira/browse/NUTCH-207
>      Project: Nutch
>         Type: New Feature
>   Components: fetcher
>     Versions: 0.8-dev
>     Reporter: Rod Taylor
>  Attachments: ratelimit.patch
>
> Increases or decreases the number of threads from the starting value 
> (fetcher.threads.fetch) up to a maximum (fetcher.threads.maximum) to achieve 
> a target bandwidth (fetcher.threads.bandwidth).
> It seems to be able to keep within 10% of the target bandwidth even when 
> large numbers of errors are found or when a number of large pages is run 
> across.
> To achieve more accurate tracking Nutch should keep track of protocol 
> overhead as well as the volume of pages downloaded.

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