Bandwidth target for fetcher rather than a thread count
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         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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