I would also do a serious reality check on the 30,000 concurrent users number. After going through something like the drill below you will find that you have architected yourself one big system. The sticker shock alone might be enough for people to go back and seriously reconsider their numbers. Marketing people are sometimes on crack.
Bigger sites (like eBay) work on seperating their services. So their frontpage is static and gets updated every so often. The second you search you are thrown to another server that just does searches. When you want to buy/bid you move to another server that just does that. -e On Tue, 5 Aug 2003, Ralph Einfeldt wrote: > build a model like > > - each user is on the site for n Minutes > - each user makes n requests > - the mean time between to page requests is n seconds > - each page request creates n http requests > - specify the average size for an http request > - specify the average ratio of request/db access > > ......... > > With that you can compute memory usage, requests/per second, > concurrent databae connection etc. > > With these number you have to test your application (not tomcat) > and see what your application can handle. There is no rule of > thumb. (It can't be, it's like predicting the time to ride by > horse fom New York to Frisko, whithout knowing the rider, > the baggage and without having a map) > > Depending on the structure of the site and the effort you want > to invest you can improve the result by building groups of users, > pages, requests and estimate these. > > > -----Original Message----- > > From: Heart Prince [mailto:[EMAIL PROTECTED] > > Sent: Tuesday, August 05, 2003 2:57 PM > > To: [EMAIL PROTECTED] > > Subject: how to suppor 30000 concurrent users > > > > > > howmany concurrent users does tomcat support? if i want to > > design a web > > application for 30,000 concurrent users, what is the step? > > clustering is > > related to this? how many servers i need if i am clustering > > > > _________________________________________________________________ > > Latest movie trailers. On your mobile. > > http://server1.msn.co.in/sp03/gprs/howcani_movie.asp With GPRS. > > > > > > --------------------------------------------------------------------- > > To unsubscribe, e-mail: [EMAIL PROTECTED] > > For additional commands, e-mail: [EMAIL PROTECTED] > > > > > > > > --------------------------------------------------------------------- > To unsubscribe, e-mail: [EMAIL PROTECTED] > For additional commands, e-mail: [EMAIL PROTECTED] > > > --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
