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From "Antonio Gallardo" <>
Subject Re: [ANN] runs on Cocoon!
Date Mon, 27 Sep 2004 21:25:15 GMT
Hi Bertrand:

I am happy to hear about another successful OJB history. If you allow, I
can forward this mail to the OJB user list ;-)

Best Regards,

Antonio Gallardo

Bertrand Delacretaz dijo:
> Le 27 sept. 04, à 09:12, Andreas Hartmann a écrit :
>> ...Congratulations, it's a nice site and really fast!
>> Are you allowed to talk about the implementation?
> Thanks - sure I can talk, in fact I hope to be able to donate some
> components to Cocoon. 'll know more when the project is actually
> closed, which will take a few weeks: as you can see we had to cut a few
> corners to meet Saturdays deadline:
>    $ find . -type f | grep -v CVS | xargs grep TODO | wc -l
>     289
> The performance part comes mainly from the front-end apache2 mod_cache.
> Simply adding the right HTTP headers and making sure the content-length
> header is generated as well (by setting the buffering flag on the HTML
> serializer) allows the front -end cache to do its job very nicely.
> This is what allows us to reach the 800 pages/second mark (tested from
> localhost, so theoretical, but still a nice figure) on this fairly fast
> Dell dual 3.6GHz server. It's got 2 GB of RAM and the JVM is configured
> to use 512MB, but runs nicely with much less on test servers.
> On a cache miss, Cocoon needs about 500msec to generate a page, not bad
> considering that there are several aggregations, at least two CInclude
> stages and maybe 10 (mostly simple) XSLT transforms on the way.
> Currently we have put a fairly low caching lifetime on pages (30
> seconds only) as it was more convenient for initial testing, but we can
> easily raise it without stopping the system, should the need arise.
> The database is a plain MySQL, out of the box, and on that side the OJB
> object cache handles the typical "write seldom, read often" usage
> pattern very nicely.
>> The only thing I don't like on the first glance is the URI scheme :)
> Why? You don't like it flat?
> Document names like 50-2 deserve an explanation though: the TV show is
> organized by show number, so 50-2 means "the second subject of show
> 50".
> Having short names is also a plus when you need to put URLs on TV, as
> in that case the show is very short (about 8 minutes) and its main goal
> is to bring people on the website, so they put the URLs on screen
> during the show.
> -Bertrand

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