[ http://issues.apache.org/jira/browse/NUTCH-207?page=all ]
Rod Taylor updated NUTCH-207:
-----------------------------
Attachment: ratelimit.patch
> 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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