Accelerate Rewind: How Instagram Uses Cassandra to Operate on a Global Scale

The text discusses how Instagram initially used Apache Cassandra™ to store its data in a single data center, but as the company expanded and added more data centers globally, it faced challenges with replication strategy. To address these issues, Instagram decided to stop duplicating data everywhere and instead stored data closest to the region where it was generated. This approach allowed for faster and more efficient network performance. The company also utilized a tool called Akkio developed by Facebook to manage local data at scale.