cluster « Session « Java Enterprise Q&A





1. Terracotta Web Sessions - dynamically reload configuration and/or change configured webapps on the fly    stackoverflow.com

Is there a way to dynamically reload the Terracotta configuration file without restarting Terracotta and losing Session replication for every web app?


More Info: I'm in charge of about 30 unruly, ...

2. Java How to invalidate user session when he logs twice with same credential    stackoverflow.com

Hallo all. I found this interesting thread about how to invalidate a user session when he logs twice. http://stackoverflow.com/questions/2372311/jsf-how-to-invalidate-an-user-session-when-he-logs-twice-with-the-same-credentia I have a slightly different environment but I should resolve the same problem. The differences ...

3. Invalidate Session at all Cluster Weblogic    stackoverflow.com

i try to save user session in a hashmap on every cluster. and when i need to invalidate it, i will take specified session id. and invalidate it where the session ...

4. How to do the Sticky session configuration in IBM HTTP SERVER?    stackoverflow.com

I have to do the sticky session configuration in IBM HTTP SERVER load balancer with clustered environment. So I searching for the document on net but no luck. So please if ...

5. What are the different approaches for Java EE session replication?    stackoverflow.com

I am working on a project that requires really high availability and my team is currently working on upgrading some infra-structure and software for a future release. One of the features we ...

6. JBoss 5.X Clustered, how to send a Multicast Message?    stackoverflow.com

I've 2 instances of JBoss (5.1.0 GA) in a cluster and an Apache 2.2 mod jk to do the balance. They are working fine, the sessions are replicated correctly. What I'd like ...

7. WebService Sessions ? Cluster ? Replication ?    coderanch.com

HTTPSession is not available to WebServices. At least I don't know how to use them. But following circumstances should be very typical When WebServices is called some proprietary "session" class should be created and some information should be stored in session to keep information about current state. When successive request comes to the server some information is attached to identify the ...

8. Session object and clustering    coderanch.com

Hello. I plan to save an object in a session. For example, session.setAttribute("myObjectName", theObject); Currently i have one server/web container only. My question is: 1) what if we need to cluster and may run the web application on 2 or more web containers - will i encounter any problem with the session? 2) If there are now two web containers and ...

9. session haldling in a clustering environment    coderanch.com

Suppoe there are three servers A,B,C in a horizontal load balancing enviroment hosting the same application. If the number of request goes beyond 50 on A, the next server serves the request. when a person's request is served by server A, a session is created on server A. Next time, the request of the same person for the resource goes to ...





10. Session Management in Clustering    coderanch.com

Hi, Head First EJB Book says that only one copy of the session objects will be available for all jvm's. Container will manages these session objects and whenever the request goes to alternate server then the session objects will be moved to the server. My Question is 1) How the application servers are maintaining the session objects. Whether the container will ...

11. Session Tracking in clustered environment    coderanch.com

Originally posted by Ronald Heukers: Rajesh, On many loadbalancers you can put the option of session binding on for different ports. That means that a session will always go to the same server where he started. We have enabled this option for our applications and it saves us a lot of troubles with sessions. regards, Ronald

12. Session object in cluster environment    coderanch.com

15. is session devil in clustering environment    coderanch.com

It is suggested in the office that session should be absolutely forbid in clustering environment. The reason is synchronization among nodes cause overhead and problem. Any argument to support this opinion? I personally disagree. Session is for stateless server to remember who the caller is. If you need to implement a stateful application, you have to "save" the user info somewhere, ...

16. Clustered Server - Session Handling    coderanch.com

You said it yourself--the attribute class must implement Serializable in order for the session attribute to migrate to the other VM. If it does not implement Serializable, it will not migrate. However, the specs do not require that Java serialization be used to serialize the object for migration. So if the class has custom serialization code, it may not run.