AWS ECS Support
AWS ECS support, troubleshooting and optimization.
Amazon ECS is a straightforward way to run containers, but task failures, deployment stalls and networking mistakes can be hard to see from the console alone.
Common ECS problems we fix
The Amazon ECS issues our engineers see most often, and how we resolve them.
ECS task keeps stopping or restarting
Look at the stopped reason first: out of memory kills (exit code 137), failing health checks, an essential container exiting, or an image pull error. We trace the cause in task events and logs, then adjust memory limits, health check settings or the image.
ECS service stuck deploying or rolling back
Deployments stall when new tasks never become healthy, the load balancer health check path is wrong, or there is not enough cluster capacity. We fix health checks, minimum healthy percent and capacity providers, and enable deployment circuit breakers.
CannotPullContainerError on ECS or Fargate
This is typically missing network access to ECR (no NAT gateway or VPC endpoints), a task execution role without ECR permissions, or a wrong image tag. We correct the route or endpoints and the IAM role.
ECS Fargate costs too high
Oversized CPU and memory per task, always-on dev environments and missing Savings Plans inflate Fargate bills. We right-size task definitions, use Fargate Spot where safe, consider Graviton (ARM) tasks and schedule non-production scaling.
ECS service unreachable behind a load balancer
Security groups, target group port mappings and subnet routing are the usual suspects, along with awsvpc networking mistakes. We trace the path from the load balancer to the container and fix the break.
How We Help With ECS
Senior AWS engineers who explain what they change and why.
What we do
- Cluster, service and task definition design
- CI/CD pipelines with safe rollbacks
- Autoscaling and capacity provider tuning
- Logging, metrics and alarms for containers
How it works
- Tell us what is wrong or what you want to improve
- We review with read-only access first
- We fix, explain and document the change
- We hand off with monitoring so it stays fixed
Specialized ECS support
Deep-dive help for specific ECS tasks.
ECS Fargate cost optimization: pay for the tasks you actually needLower your ECS Fargate bill. TwinTix right-sizes tasks, applies Fargate Spot, Graviton and Savings Plans, and removes hidden networking and log costs.
ECS task stopped with exit code 137: find out why and fix itECS tasks stopping with exit code 137 or OutOfMemoryError? TwinTix reads stopped reasons and metrics to find OOM kills, failed health checks and bad shutdowns.
ECS deployment circuit breaker and automatic rollbackStop bad ECS deployments from taking you down. TwinTix configures the circuit breaker, health settings and alarms for automatic rollback.
ECS CannotPullContainerError: why images fail to pull and the fixFix ECS CannotPullContainerError for ECR and Docker Hub images. TwinTix checks networking, endpoints, IAM, tags and rate limits to get tasks running.
Frequently Asked Questions
What is the difference between ECS and EKS?
ECS is AWS's own container orchestrator and is simpler to run. EKS is managed Kubernetes, which offers portability and a large ecosystem but more operational work. We help you choose and run either.
Should I use Fargate or EC2 for ECS?
Fargate removes server management and suits most teams. EC2-backed ECS can be cheaper at steady high utilization or when you need specific instance features. We model both against your workload.
Can you migrate our Docker app to ECS?
Yes. We containerize the app if needed, build the task definitions and pipeline, and cut over with minimal downtime.
Need Help With Amazon ECS?
Schedule an appointment. Describe the problem and we will tell you the fastest safe way to fix it.
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