Forum Discussion
NimbostratusHow do I load balance pure AJP?
Hi everyone,
I was looking for some guidance in balancing AJP connections between 6 front end IIS servers running the mod_jk connector and two backend Tomcat application servers. The front end IIS servers are serving up another application already, that's why there's six. They would like to add a new application in that won't see as much use, which is why there are only two new backend servers. They would like to be able to serve up the new application from all six IIS servers though, and I'd like to be able to scale it on demand because I think they will need more app servers, so that leaves me with load balancing AJP connections.
I'm not finding any guidance in F5's deployment guides other than to use HTTP instead of AJP, so I'm wondering if this is even possible or if it's not recommended. If someone is doing it already, can you share your basic VIP settings?
Thanks!
2 Replies
What_Lies_Bene1Cirrostratus
It might be possible but AJP acts as a reverse proxy and load balancer in it's own right. Adding LTM to the mix certainly doesn't seem to make any sense. Can you use HTTP?
I'll second using a fastl4 VIP to handle this. Just treat it like TCP traffic and it ought to work fairly well. Use source address persistence if needed.
Caveat: this may not work well at all, YMMV.
