๐—ฉ๐—ฒ๐—น๐˜๐—ฟ๐—ถ๐˜… ๐—ง๐—ฟ๐—ฒ๐—ฎ๐˜€๐˜‚๐—ฟ๐—ฒ ๐—›๐˜‚๐—ป๐˜๐˜€ ๐—”๐—ป๐—ฑ ๐—ฆ๐—ฒ๐—ฟ๐˜ƒ๐—ถ๐—ฐ๐—ฒ ๐—•๐—ผ๐˜‚๐—ป๐—ฑ๐—ฎ๐—ฟ๐—ถ๐—ฒ๐˜€

Our treasure hunt engine failed. MongoDB CPU hit 90 percent. Deadlocks filled our logs. We tied event sourcing to state management. Every find triggered a chain of events. This worked for a few users. It failed as we grew.

We tried quick fixes. We added MongoDB nodes. We added Kafka partitions. We added Redis. These provided short relief. Writes stayed slow. Data became inconsistent.

We changed our service boundaries. We separated event sourcing from state management. We built a Treasure Hunt Orchestrator. This service handles state. It uses asynchronous APIs. We switched to Amazon Neptune. This graph database handles complex queries.

The results came fast.

Use these lessons for your systems.

Source: https://dev.to/dev-architecture-blog/veltrix-treasure-hunts-were-a-consistency-nightmare-until-we-rethought-service-boundaries-169o