What are the best practices for using CloudWatch metrics?

What are the best practices for using CloudWatch metrics?

To effectively use CloudWatch metrics, consider the following best practices: 1. Define clear metrics that align with your business goals. 2. Use custom metrics for specific application needs. 3. Set up alarms to monitor critical thresholds. 4. Regularly review and optimize your metrics to avoid unnecessary costs.

How can I create custom metrics in CloudWatch?

You can create custom metrics in CloudWatch by using the AWS SDKs or the AWS CLI. You'll need to use the PutMetricData API call to send your custom metric data to CloudWatch. Make sure to define the namespace, metric name, and dimensions.

What are some common metrics to monitor?

Common metrics to monitor include CPU utilization, memory usage, disk I/O, and network traffic. Additionally, application-specific metrics like request latency and error rates are crucial for performance monitoring.

How do I set up alarms for my metrics?

To set up alarms, go to the CloudWatch console, select 'Alarms', and click 'Create Alarm'. Choose the metric you want to monitor, set the conditions for the alarm, and specify the actions to take when the alarm state changes.