Using the circuit-breaker pattern with AWS Lambda extensions and Amazon DynamoDB
Compute Blog
This article explains how to implement the circuit breaker pattern with AWS Lambda extensions and Amazon DynamoDB to mitigate cascading failures in distributed systems.
Specifically, the article covers:
- Using Lambda extensions to implement the circuit breaker pattern by having an external process check service reachability and maintain circuit state in a caching layer
- Architectural overview of the solution, involving Lambda functions, DynamoDB, EventBridge, and API Gateway
- Step-by-step walkthrough of deploying and testing the solution using AWS SAM
- Simulating a closed circuit breaker state to test the behavior when a microservice is unresponsive
- Cleanup steps and security considerations
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