Hey guys, sorry the server was down and acting up for a large part of the day. It finally "gave out" under so much load and, unfortunately for all of us, I am super busy at work this week for the first time in a long time.
So, I went ahead and jumped up my costs quite a bit by starting up several more AWS instances. I now have an instance hosting nginx and redis, which load balances to two separate node instances, and then I have a dedicated mongodb instance running as well. I'm really hoping this keeps things running smooth for awhile. :-)
Great post Wil, and thank you for spinning up the extra hardware.