On Wed, 2012-01-11 at 02:29 -0800, Weffen Cheung wrote: > Hello, > > I am using 2 tomcat(7.0.11) on my server, with clustering and session > duplication. All the things are running smoothy except the session problem > sometimes: > > 1. userA login, userB login
Are userA and userB on the same TC instance? > 2. Sometimes when userB load a page, he found that he has became userA, it > means that userB's login session data has been replaced with userA. Don't > know why. Is it a bug? In most cases this occurs due to a session, request or response object being retained by a servlet. This is bad and can cause behaviors similar to the one you are reporting. > Anyone encounter the same problem?? > > Any advice would be high appreciated! One other thought, what do you have in front of the two TC instances? Apache HTTPD with mod_proxy? or with mod_jk? Have you confirmed that the correct session id is being sent from the browser to your load balancer and then from the load balancer to your TC instance? Dan