On Tue, 25 Jun 2002, Huy Tran wrote:

> Mathias,
> 
> Thanks for the encouraged news.  We've been using Tomcat in our product 
> for a while now.  Now, I need to set it up with support for minimum 100K 
> simultaneous connection to our server side.  If you could share some of 
> your knowledge how you did it with your site, it would be tremendously 
> helpful for me and many other Tomcat user out there.

100k simultaneous connections ??? Well, that's a lot.

Depending on the request and hardware, you could run 1-200 
RPS on one tomcat - but you would need a pretty large farm to load
balance 100.000. 

I would use few hardware load balancers, and several apache
boxes in front of the farm.

Hopefully not all of the requests will be for dynamic content -
so you may be able to handle it. But I've never seen 100.000 
concurent users ( well, google probably has more - and is 
certainly not impossible - but it'll take some work )

Costin
 




> 
> Regards,
> 
> Huy Tran.
> 
> Mathias Herberts wrote:
> 
> >[EMAIL PROTECTED] wrote:
> >  
> >
> >>On Tue, 25 Jun 2002, GOMEZ Henri wrote:
> >>
> >>    
> >>
> >>>>>Pier could you detail what should be a Tomcat HA, and how
> >>>>>it could fit in TC 5.0 proposal ?
> >>>>>          
> >>>>>
> >>>>As far as I can remember it was voted -1...
> >>>>        
> >>>>
> >>>What about TC 5.0 with HA capability ?
> >>>      
> >>>
> >>TC5.0 will have a 'higher availability' then 4.1 which is better
> >>than 4.0. Same goes for 3.3 versus 3.2, and so on.
> >>    
> >>
> >
> >[snip]
> >
> >  
> >
> >>Well, I know quite a few people who managed to get tomcat in
> >>production on a variety of sites ( including very large loads).
> >>    
> >>
> >
> >I run Tomcat on 20 or so production web sites, with volumes in the
> >2/3 million hits per day mark. I've been running Tomcat since march
> >2000, starting with 3.2.1.
> >
> >I think with a little of involvment it is easy to set up a high
> >availability environment using Apache/Tomcat and maybe hardware load
> >balancers. Maybe what is missing is a good tutorial on such a setup.
> >Maybe I could start thinking about writing something about our setup. We
> >came up with neat tricks to handle live application upgrade and this
> >sort of things. I don't know where this could fit in but it is
> >definitely the kind of HOWTO that could be good for the spread of Tomcat
> >on production environments.
> >
> >As for the pure servlet speed Tomcat can deliver, from what I see
> >everyday, the bottleneck is usually in the data tier and not in the
> >application server, so this is a purely sterile debate in my opinion.
> >
> >Just my 2 cents of euro worth.
> >
> >Mathias.
> >
> >--
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> >
> >  
> >
> 
> 


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