Hi all,
We are currently experiencing an issue on our system where user A gets the HTTP response intended for user B. In fact, user A and user B are two completely different users that are logged on to our system. User A and User B both a send a different request and then BOTH users get the same response. This problem occurs sporadically and so far we have not been to reproduce it. Our setup is as follows: We have a server that runs apache and acts as a reverse proxy to the second apache on another server. Both these servers run Apache 2.2.9. The apache on the second server includes the mod_jk module and this server also runs a tomcat which routes the requests to our backend java application. Detail specification of the problem scenario: In the web GUI, user A requests a list of customers and user B requests a list of the current orders (these requests are be handled in different servlets). User A receives the correct list of its customers, however User B gets the same HTTP response! We traced both requests through the entire chain of apache/apache/tomcat/backend etc. and we see both requests (User A and User B) in the logging of our first and second apache. These requests are for completely different servlets, this rules out any coding problems inside the servlet. The reason why we can correlate the HTTP response of User A with the HTTP response User B receives, is the size of the HTTP response in the apache logging. We have looked through the change log of tomcat/apache and we have searched many forums to see if others have encountered this issue. Unfortunately, we have found very little information. It is also very difficult to reproduce this situation, since it occurs randomly and we have only seen it happen 3 times in about 2 months time. System specification: OS: Solaris 10 Apache: 2.2.9 Tomcat: 6.0.16.0 Tomcat_jvm: 1.6.0_07-b06 mod_jk: 1.2.26 java: 1.6.07 The versions of apache/tomcat etc. have not been updated for quite some time (more than a year at least). If anyone could shed some light on this issue or has experienced it themselves: any information would be greatly appreciated. Regards, Robert Colpaert Please help Logica to respect the environment by not printing this email / Pour contribuer comme Logica au respect de l'environnement, merci de ne pas imprimer ce mail / Bitte drucken Sie diese Nachricht nicht aus und helfen Sie so Logica dabei, die Umwelt zu schützen. / Por favor ajude a Logica a respeitar o ambiente nao imprimindo este correio electronico. This e-mail and any attachment is for authorised use by the intended recipient(s) only. It may contain proprietary material, confidential information and/or be subject to legal privilege. It should not be copied, disclosed to, retained or used by, any other party. If you are not an intended recipient then please promptly delete this e-mail and any attachment and all copies and inform the sender. Thank you.
