Tag: schema changes

Challenges of Sharding MySQL

MySQL databases are sharded for the best of reasons. At some point the MySQL workload needs to scale, and scaling RDBMSs is hard (Clustrix’s unofficial motto!). Adding read scale to RDBMSs is straightforward via replication. But adding write scale? That’s the real trick, and herein lies some of the challenges […]

Can You ALTER a 3 Billion Row SQL Table Online?

Is it Possible to Alter a 3 Billion Row SQL Table Online? At Clustrix, our goal has always been to simplify everything about the database. We started off tackling the scale-out challenges, then performance, easy MySQL migration, real-time analytics, and so on as the product matured and customers expressed their […]