Suppose I have more than one web application servers running and I am logging in a User from Server1 thus his session starts.As http is stateless, suppose if the next request goes to Server3 than the Sever1 which was used to login to the application,if I use cookies, hidden form , its not going to work in Server2.
So how do I manage the session ?, maybe by generating an ID (or even reusing the jsessioid generated ) and storing it in a central database,so that all servers can access this session ID and validate it before processing the request.Then in that case, I need to develop a mechanism to store all the session data as object to the database.
Is there any other built in mechanisms available ?
If you are deploying application on more than one server, you should use “Clustering”. Application servers are able to handle this scenario using “session replication”. With session replication, each server will have a copy of the active users session. IF the first request goes to server A and second request goes to server B, it will be transparent to application code and end user.
For clustering/session replication in Tomcat, you can have a look at this link.