CloudWatch Troubleshooting Guides.

Step-by-step guides to diagnose and fix common issues in AWS Lambda, API Gateway, and ECS - using your CloudWatch logs.

AWS Lambda

Lambda Cold Start Troubleshooting

Identify cold start patterns, measure init duration impact, and reduce latency with provisioned concurrency and package optimization.

Lambda Timeout Debugging

Diagnose "Task timed out" errors, trace slow downstream calls, and prevent timeout failures.

Lambda Out of Memory Errors

Detect memory pressure, identify leaks, and right-size your Lambda memory allocation.

DynamoDB Throttling in Lambda

Fix ProvisionedThroughputExceededException errors and eliminate throttling from your logs.

API Gateway

API Gateway 502 Bad Gateway

Debug Lambda integration failures, malformed responses, and Bad Gateway errors.

API Gateway 504 Timeouts

Fix the 29-second integration timeout limit and optimize slow backends.

Amazon ECS

ECS Container OOM Kills

Diagnose exit code 137, out-of-memory container terminations, and fix memory limits.

General

How to Export CloudWatch Logs

Step-by-step guide to exporting CloudWatch logs as JSON using the console, CLI, or SDK.