DataWeek Conference + Expo

As a company grows and changes, so does its data infrastructure needs. Technologies and data-models that may have made sense at one point in time gradually become ill-suited for handling the problems facing your business today. When that data is mission-critical, though, it's often a daunting task to migrate backends or models - leading many engineers to spend countless hours dealing with workarounds, caching strategies, and other mitigation patterns rather than facing the data model problem head on. As change.org has grown from a small blog site to the world's leading petition platform we have had to deal with this problem in a number of ways. This talk will explore how we have successfully transitioned production-facing data from MongoDB and LevelDB to Cassandra and MySQL through a multi-phase process with a focus on data integrity and verification.