Well I finally got a second webserver and put it into production on the weekend. Along with a serveriron load balancer. The main reason for the upgrade is that i’m fast approaching 64,000 concurrent users and you can only have 64k users per IP. But even when using a load balancer its tricky to set up without running into problems.
The SI supports a maximum of 64,000 simultaneous connections on each source IP address. This maximum value is based on the architectural limits of IP itself. As a result, if you add only one source IP address, the SI can support up to a maximum of 64,000 simultaneous connections to the real servers. If you configure 64 source IP addresses, the SI can support more simultaneous connections.
I could have just assigned a second IP and added round robin DNS, but this way I’ve got more redundancy and can just swap in more web servers. Also ServerIrons allow some really cool stuff to happen like load balance passed on Cookies, session data, ip data you can even block bots.
Here is another Video panel with startup founders..