NLB and fault tolerance. Messing up sessions.
Posted on 2008-10-29
I have 2 web servers (Server A and Server B). They are setup in an NLB cluster. While they are both up, all of the traffic goes to one server and not the other. I don't really care about that. When Server A goes down, after about 15 seconds, requests begin to be served from Server B. That is great. The problem is that when server A comes back up, it will hijack all the sessions of Server B. If someone is working in the App on B when A comes up, all traffic gets redirected to A and borks up the session. I have affinity set, which from what I understand dedicates the session to a box. Can someone tell me how to fix this please.
Thanks in advance.