Sessions issues and slowness of application

Question

Problem Description: We are experiencing some session issues in our application built using ADF. After one of our recent deployment we are seeing some issues which are causing session values spilling across sessions. For example if a user A is logged in and searching with a value 123 in a certain form in the application, at the same time if another user logs in and opens up the same form he would see 123 value retained in the form. There are other similar issue which are being encountered like concurrent users being logged out randomly, the login name of one user showing up in another users screen, etc. This has recently been encountered and had not been seen until SIT. We are now into UAT and this hence impacts the business hugely as there is a team of end users who the business had made available to see the demos and test furher but with the above explained, the testing is on a stand stilll. We hence see an urgent response on this and request that this be dealt with on utmost priority. in addition to this we have been seeing poor performance especially while accessing the application from IE, mozilla and iPad/Safari browsers. We have also observed that some of the custom images being used in the application UI (residing in a specific folder) are not being cached while others in ARF folder are being cached. Images which are not being cached have been identified as a cause of additional delay in loading of pages.
We are using Jdeveloper 11.1.1.5 .Adf technologies used are ADF faces, we have also used View objects(ADF Business Components) to fetch the data.

Answer 1

This all sounds like you have a problem with application module pooling.
Have you tested your app with am pooling turned off?
Check [url http://tompeez.wordpress.com/2011/07/08/jdev-always-test-your-app-with-applicationmodule-pooling-turned-off/]JDev: Always Test Your App with ApplicationModule Pooling turned off for more input.
Once you've sorted out his problem we can talk about the performance. There are a couple of posts and blogs around about this.
Timo