While ECS-Optimized Amazon Linux has provided significant benefits in terms of scalability and cost optimization, we have encountered a few operational challenges. One limitation is application-level debugging. Compared to traditional EC2 instances, troubleshooting in ECS can be more complex because containers are ephemeral. Without centralized observability tools, it is more difficult to pinpoint the exact source of an issue, such as the specific line of code, request, or service responsible for an error or performance bottleneck. To address this, we have implemented our own centralized logging and monitoring solution to improve visibility into application behavior. Another consideration is resource sizing. Our microservices have relatively modest memory requirements, so the available ECS task configurations are sufficient for our workloads. However, for large, monolithic applications with higher memory and compute requirements, scaling can require a different architecture or deployment strategy. Since our platform is built using independently scalable microservices, this has not been a significant limitation for our environment.
