This week we found ourselves in the wonderful but awful spot of having a lot of traffic hitting our DB servers. Its good because we are getting our customers moved over to AWS but bad since that means we need to scale up our RDS instances. After some panicked moments and a couple of hot fixes, we disabled some batches that were pushing our taxed DB servers to the limit and causing micro outages and I started researching the best way to scale up RDS clusters. Most of the info out there was a little vague so I contacted AWS support and here is the info they gave me:

Of course after reading through this I realized how simple it was and maybe that’s why there isn’t a more detailed guide on how to do this. Hopefully this post helps the next guy who needs to do this and has the office waiting on him to figure it out.

Written by kevin