Logging and Monitoring with CloudWatch
Implement robust logging within your Lambda functions and monitor their performance and errors using AWS CloudWatch.
Why Log & Monitor Lambda?
When your Lambda functions run in the cloud, you can't just attach a debugger. This is where logging and monitoring become incredibly important!
They help you understand what your function is doing, debug issues, and ensure it's performing well.
Meet AWS CloudWatch
AWS CloudWatch is the central observability service for AWS. It collects and processes raw data from AWS services (like Lambda) into readable metrics and logs.
- CloudWatch Logs: Stores your function's text output.
- CloudWatch Metrics: Gathers performance data (invocations, errors, duration).
- CloudWatch Alarms: Notifies you when metrics cross defined thresholds.
All lessons in this course
- Lambda Runtime and Handler
- Environment Variables and Layers
- Logging and Monitoring with CloudWatch
- Error Handling, Retries & Dead-Letter Queues