On 5/18/07, Andrzej Bialecki <[EMAIL PROTECTED]> wrote:
> Doğacan Güney wrote:
> > Hi everyone,
> >
> > Has anyone tried Fetcher2 from latest trunk? On our tests, Fetcher2 is
> > always slower (by a large margin) that Fetcher.
> >
> > For a segment with ~30000 urls, we ran Fetcher with 150 threads and
> > Fetcher2 with 50 threads. Fetcher finishes around 1 hour, while
> > Fetcher2 takes around 4 hours.  We ran this test more than once and
> > got similar results.
> >
> > Are we running Fetcher2 with too few/too many threads? I was under the
> > impression that Fetcher2 doesn't need as many threads as Fetcher since
> > threads do not block.
>
>
> Yes, that was the idea. Could you test it with the same number of
> threads? Is the configuration identical in all other aspects?

Yes, it is identical in other aspects. I am currently testing with
same number of threads. Will report if there is a difference.

>
> Are you running the version with the fix from NUTCH-474?
>
>
> >
> > Any suggestions?
> >
>
> If you already have a setup to reproduce this, you could perhaps spend
> some time debugging this ... add some timing info, and queue info logging.

What do you think would be a good place(or places) to add debug info?
Looking at the code I am not sure where to add them?

>
>
> --
> Best regards,
> Andrzej Bialecki     <><
>   ___. ___ ___ ___ _ _   __________________________________
> [__ || __|__/|__||\/|  Information Retrieval, Semantic Web
> ___|||__||  \|  ||  |  Embedded Unix, System Integration
> http://www.sigram.com  Contact: info at sigram dot com
>
>


-- 
Doğacan Güney
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