Thanks Sebastien. Sounds like somebody should update or remove that page...

On Tue, Nov 25, 2014 at 12:08 PM, Sebastian Nagel <
[email protected]> wrote:

> Hi,
>
> if it's about a recent Nutch version: there is no such property.
> (sorry, if it's taken from http://wiki.apache.org/nutch/FetchOptions:
>  this information is really outdated)
>
> With Nutch 1.9 the following properties are available
> which will cause threads to be started and stopped
> to come close to the configured bandwidth:
>
> <property>
>   <name>fetcher.bandwidth.target</name>
>   <value>-1</value>
>   <description>Target bandwidth in kilobits per sec for each mapper
> instance. This is used to adjust
> the number of
>   fetching threads automatically (up to fetcher.maxNum.threads). A value
> of -1 deactivates the
> functionality, in which case
>   the number of fetching threads is fixed (see
> fetcher.threads.fetch).</description>
> </property>
>
> <property>
>   <name>fetcher.maxNum.threads</name>
>   <value>25</value>
>   <description>Max number of fetch threads allowed when using
> fetcher.bandwidth.target. Defaults to
> fetcher.threads.fetch if unspecified or
>   set to a value lower than it. </description>
> </property>
>
> <property>
>   <name>fetcher.bandwidth.target.check.everyNSecs</name>
>   <value>30</value>
>   <description>(EXPERT) Value in seconds which determines how frequently
> we should reassess the
> optimal number of fetch threads when using
>    fetcher.bandwidth.target. Defaults to 30 and must be at least
> 1.</description>
> </property>
>
>
> Best,
> Sebastian
>
> On 11/25/2014 12:09 AM, Dan Kinder wrote:
> > Hi, I'm having trouble finding documentation about how bandwidth
> throttling
> > is actually implemented in Nutch. Is it implemented, and if so how? Or do
> > most people just use squid proxies, etc.?
> >
> > -dan
> >
>
>


-- 
Dan Kinder
Senior Software Engineer
Turnitin – www.turnitin.com
[email protected]

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