What does a high error rate in Lambda indicate?

A high error rate in a Lambda function indicates that there is a significant number of failed invocations. This metric is crucial for assessing the function’s reliability and performance. A high error rate may stem from various issues, such as code bugs, misconfigurations, or failures in dependencies that the function relies on.

Monitoring the error rate allows developers and operators to quickly identify and address problems that could affect the user experience or the stability of the application. This information is vital for maintaining the health of the serverless architecture and ensuring that the function can perform as expected without excessive failures disrupting its operation.