This is official Amazon Web Services (AWS) documentation for Amazon CloudWatch.
You can use Amazon CloudWatch to monitor, manage, and publish various metrics on your AWS cloud resources, as well as configure alarm actions based on data from metrics.
This guide provides conceptual information about CloudWatch and shows you how to use the service to create new web applications or integrate with existing ones. You can use this guide to program using the command line interface (CLI) or the Query API. This guide also explains how to integrate CloudWatch with other Amazon Web Services, such as Amazon Elastic Compute Cloud (Amazon EC2), Elastic Load Balancing, Amazon Simple Notification Service (Amazon SNS), and Auto Scaling.