Hello There, I finally managed to install and configure modJk2 with Apache 1.3 and Tomcat 5. It's running fine and the new graceful shutdown functionality is doing a good job :-)
Now I want to set up in memory session replication. The problem I see with that is when I shutdown the first node, deploy the new code and restart it I would have two nodes running on a different code basis trying to replicate session information. The newly started Tomcat instance gets all the session data from the running node before it eventually opens all the ports and lets people connect to it, doesn't it?! There's now switch enabling me to activate and deactivate session replication on runtime (like JK2 offers configuration reloading by accessing the jkstatus page). Please correct me if I'm wrong... Assuming the above I think I'll need FOUR tomcat instances (1a, 1b, 2a, 2b) to implement a real failover solution. I would assign two instances to one group (1a, 1b) and the other two to a second group (2a, 2b). The tomcat instances would replicate session states just with other instances in the same group, i.e 1a with 1b and 2a with 2b respectively. This way I would be able to graceful shutdown one group (e.g. group 1) and deploy the new code without affecting the other group (e.g. group 2). Also one of the tomcat instances could fail (e.g. 1a) because there is always a 'backup node' in the same group (1b). Now the question (sorry for the long introduction to my problem): How can I assign the tomcat instances to different groups running under the same loadbalancer? Is that possible at all or is there a better solution for the scenario described above? Thanks TJ --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
