So you may remember from our article in November of 2014 about our switch to Redshift, that Koddi uses Amazon Web Services (AWS) to power our platform. While we have moved some of our data to Redshift, we still have quite a bit in MySQL (RDS), and at the beginning of this year we needed to move our main database from one AWS account to another. The normal process when creating a copy of a database in RDS is to take a snapshot and spin up a new database from this snapshot. However, Amazon doesn’t allow you to share snapshots between accounts. This posed the question, how do we efficiently migrate over a billion rows of data?