Currently our PRODUCTION env is supporting 8 GB of RAM and the number of applications that are deployed is close to 25. Out of which 15 are accessed on a regular basis with nominal load, But we are facing Out Of Memory Issues very often , we diagnosed the logs and dumps using ISA , which havent given any concrete conclusions . Please let us know if there is any limit on the number of applications that can be deployed on a single profile of WAS 7
Based on the performance Testing indications if are supposed to deploy only 15 applications , Can you please suggest some options to cater the rest of the applications deployments (Clustering, New profile creation.. etc).
Also suggest some Performance testing tools which can be helpful
No need for clustering if these applications are distinct. Clustering is used to allow an application to be scalable, rather than as a way to deploy more applications. simply having a second server would do.
For WebSphere, Rational Performance Tester is a common tool to use.