Case Study: Epsilon achieves reliable 100M+ daily email delivery with Percona XtraDB Cluster and ProxySQL

Epsilon supports 100M+ daily emails with Percona

Epsilon, a global marketing and data services leader, faced a significant infrastructure challenge. Their Harmony platform, which functions as a "global post office," needed to process metadata for over 100 million daily email transactions without interruption. The existing database architecture was strained by high-concurrency connections and was at risk of split-brain scenarios, which could lead to data inconsistency and downtime. To modernize this critical system and ensure reliability, Epsilon turned to the vendor Percona for a solution involving Percona XtraDB Cluster and Percona Expert Support.

Percona implemented a solution using Percona XtraDB Cluster to create a synchronous multi-node architecture that eliminated split-brain risk and ensured data consistency. They also deployed ProxySQL to intelligently route traffic and manage high-concurrency connections, preventing any single node from becoming a bottleneck. This resulted in a resilient, high-availability infrastructure that successfully supports over 100 million daily transactions without data loss or disruption to client campaigns, directly ensuring business continuity for Epsilon's major retail and automotive clients.

Epsilon