thank you Cyrille Le Clerc . i'm read mail you in the cas-user and am tying it
2009/8/11 Cyrille Le Clerc <[email protected]> > Hello Yuri, > > We happily use CAS on a high volume web portal in France. We have > more than 800,000 authentications on peak days and the traffic is > planned to increase. > > We use CAS over three Tomcat 6.0.18 / Sun JVM 1.6.0.13-32 bits / > RHEL 4 / Dual Quad Core Xeon CPUs servers (less than 5 K euros per > box). The three servers consume less than 10 percents of CPU (measured > with vmstat) ; we want 3 nodes for high availability, not for the > load. Tomcat session replication is not enabled, CAS doesn't need it. > > In front of these Tomcat server, we use mutualized Apache 2.2 + > mod_proxy_balancer/mod_proxy_http web servers. In front of the Apache > servers, we have one Big IP hardware load balancer. > > For CAS tickets distribution, we first used the JPATicketRegistry > against an Active/StandBy Oracle DataGuard database. We were very > happy with it but the DBAs told us that we were writing too much so we > moved 6 weeks ago to a Distributed EHCache Ticket Registry (RMI > synchronous replication for service tickets and RMI Asynchronous 500ms > delay for authentication tickets, no RMI tuning). > > Both JPA and EH Cache RMI Ticket Registry have shown to be very > reliable, simple and efficient. EH Cache RMI Ticket Registry burns a > bit more CPU than the JPA Ticket Registry did but we gain to remove > one layer in our architecture. I detailed our JPA and customization > experience in > http://www.mail-archive.com/[email protected]/msg01599.html > . > > Another thing we like very much about CAS is that it is very easy > to understand and to customize to your specific needs. You even have > to be careful not to customize too much, maintenance of custome > development is expensive as it is with every piece of software. > . > To conclude, we are very happy with CAS whatever the backend is a > database or EHCache RMI and we are very confident in the increase of > traffic the marketing plans for our web site. CAS will not be our > bottleneck. > > Hope this helps, > > Cyrille > > (1) http://www.mail-archive.com/[email protected]/msg01599.html > > -- > Cyrille Le Clerc > [email protected] [email protected] > http://blog.xebia.fr > > > On Tue, Aug 11, 2009 at 12:17 AM, Yuri Negocio Negocio > <[email protected]> wrote: > > > > Hi Guys, > > > > I'm evaluating Open Source SSO solutions for a website with large > amounts of access to an institution of the Brazilian government. > > I am seriously considering the use of CAS as a solution, however, I need > some success stories of high availability to illustrate my infrastructure > team. > > > > What is the biggest documented case of simultaneous access to CAS SSO > solution? > > > > What is the best way to achieve HA with CAS SSO? > > > > Regards, > > > > Yuri Feitosa Negócio > > > > Software Archite > > > > -- > > You are currently subscribed to [email protected] as: > [email protected] > > > > To unsubscribe, change settings or access archives, see > http://www.ja-sig.org/wiki/display/JSG/cas-user > > -- > You are currently subscribed to [email protected] as: > [email protected] > To unsubscribe, change settings or access archives, see > http://www.ja-sig.org/wiki/display/JSG/cas-user > > -- You are currently subscribed to [email protected] as: [email protected] To unsubscribe, change settings or access archives, see http://www.ja-sig.org/wiki/display/JSG/cas-user
