Amazon CloudWatch¶

enables you to monitor and manage various metrics
configure alarm actions based on data from those metrics
detect anomalous behavior in your environments
visualize logs and metrics with the AWS Management Console
- CloudWatch Logs is centralized place for logs to be stored and analyzed.
take automated actions like scaling
troubleshoot issues
discover insights to keep your applications healthy
you can create custom metrics for your application. Examples:
- Webpage load times
- Request error rates
- Number of processes or threads on your instance
- Amount of work performed by your application

Alarm states¶

OK
ALARM
INSUFFICIENT_DATA
- The metric is not available, or not enough data is available for the metric to determine the alarm state.