Reliability is the most important feature of a payment gateway. If we are down, you lose money. In July 2024, we completed a massive infrastructure migration to ensure 99.99% availability.
Multi-Region Redundancy
We migrated from a single AWS region to an active-active setup across us-east-1 (N. Virginia) and eu-central-1 (Frankfurt). Traffic is routed via DNS latency checks to the nearest healthy data center.
Database Failover
We utilize Amazon Aurora Global Database. If the primary region fails, one of the secondary regions is promoted to primary with a latency of less than 1 second. This ensures that transaction data is never lost, even in the event of a catastrophic regional outage.
Chaos Engineering
To test our resilience, we regularly run "Game Days" where we intentionally inject failure into our system—killing pods, severing database connections, and introducing network latency. This helps us identify weak points and automate recovery scripts.
The Result
Since the migration, we have maintained 100% uptime during peak traffic windows, processing over 500 transactions per second without degradation.