𝗪𝗵𝘆 𝗦𝗲𝗿𝘃𝗲𝗿 𝗘𝗰𝗼𝗻𝗼𝗺𝗶𝗲𝘀 𝗙𝗮𝗶𝗹
I built a bank interest system for Veltrix. I wanted players to save money. You think a simple formula works. It does not.
Players found a way to make free money. They moved funds fast. MySQL struggled. It had deadlocks and timeouts.
I changed the tech stack. I used Apache Kafka for transactions. I added Redis to store balances. I used Cassandra for high volume data. I added rate limits to stop cheating.
The results:
- Exploits fell 90%.
- Database errors fell 95%.
- Deposits grew 25%.
- Latency fell 40%.
Learn from my mistakes. Run load tests before you launch. Build better monitoring. Use functional programming for cleaner code.