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From "Julien Nioche (JIRA)" <>
Subject [jira] [Assigned] (NUTCH-207) Bandwidth target for fetcher rather than a thread count
Date Sat, 05 Apr 2014 07:33:15 GMT


Julien Nioche reassigned NUTCH-207:

    Assignee: Julien Nioche

Will see if I can port this patch to the current version of the Fetcher

> Bandwidth target for fetcher rather than a thread count
> -------------------------------------------------------
>                 Key: NUTCH-207
>                 URL:
>             Project: Nutch
>          Issue Type: New Feature
>          Components: fetcher
>    Affects Versions: 0.8
>            Reporter: Rod Taylor
>            Assignee: Julien Nioche
>             Fix For: 1.9
>         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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