Lambda SQS Async Resilience
Design resilient asynchronous processing with Lambda, SQS queues, dead-letter queues, partial batch response, and CloudWatch alerting for Lambda concurrency and queue depth.
Lab Overview
Implement professional-level serverless resilience patterns for SAP-C02. Configure an SQS standard queue with a dead-letter queue (DLQ). Create a Lambda function that processes SQS batches with partial batch responses for individual message failures. Set up CloudWatch alarms for queue depth, Lambda error rate, and concurrent execution throttles. Test failure scenarios to validate DLQ routing and automated recovery.
What You'll Learn
Configure SQS queue with DLQ and redrive policy
Create Lambda function with SQS event source mapping
Implement partial batch failure handling for message-level resilience
Set up CloudWatch alarms for operational visibility
Prerequisites
Understanding of AWS Lambda, SQS, and IAM execution roles
Familiarity with CloudWatch metrics and alarms
Technologies Covered
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