Amazon CloudWatch Events provides a stream of events describing changes to your AWS resources, such as when an application adds tags to an Amazon Relational Database Service (RDS) instance or unusual API call patterns are logged byAWS CloudTrail.
This enables you to respond quickly to application availability issues or resource changes, with notifications from AWS services delivered in near-real-time. You simply write rules to indicate which events are of interest to your application and what automated action to take when a rule matches an event, such as stopping an Amazon Elastic Compute Cloud (EC2) instance, sending an Amazon Simple Notification Service (SNS) message, or adding the event to an Amazon Simple Queue Service (SQS) queue.
You may also schedule cron-like actions, such as taking an Amazon Elastic Block Store (EBS) volume snapshot every hour, at intervals down to 1-minute.
Amazon CloudWatch Events is already available in the US East (N. Virginia), US West (Oregon), US West (N. California), EU (Ireland), EU (Frankfurt), Asia Pacific (Singapore), Asia Pacific (Tokyo), and Asia Pacific (Sydney) regions.
You can get started monitoring system events in theCloudWatch Events console, or by reading ourdocumentation.