[AWS DA Guru] Monitoring

CloudWatch

• Bascily you can use CloudWatch to monitoring everything in AWS.
• CloudWatch Logs allow you to monitor operating system and application logs.
• By default, EC2 doesn't send operating system-level metrics to CloudWatch.

Metric Frquency

• By default, EC2 sends metric data to CloudWatch in 5-mins intervals
• Additional Charge you can enable detailed monitoring that send at 1-min intervals
• Custom metrics, the default is 1-min intervals, and you can configure high resolution metrics that are sent at 1-second intervals

CloudWatch Agent

• Define your own metrics.
• By installing the CloudWatch Agent on your EC2 instances, you can collect operating system metrics and send them to CloudWatch.
• Memory usage, processes running on your instance, amount of free disk space, CPU idle time, etc.