Appserver Performance Issues - Tuning and Analysis

40 % of issues from App server ,10%  of issues from web server ,20% from network ,30% from DB

Threads are being established to App Server and Connections are going to DB.

1) Threads

2) Memory

3) Connection pool

Similar  to java in  .net we have CLR ( common language runtime) it is similar to JVM.

CLR converts any microsoft language to talk with windows OS .

JVM and CLR are core of app servers.

Session and Connections are different .

Connection might be established to webserver . But session is connected to app server.In most cases sessions and users are same.

Appserver has more than 5000 in queue ,it would be a problem.check wait time also .

if contention is high response time also high.Contention is waiting to complete some specific task.

DB Connection Pools -

Main issue in app server is out of memory - this happens because lack of effective garbage collection.