CloudWatch best practices

Here are the best practices that we can follow in CloudWatch:

• It is best practice to monitor AWS resources and hosted applications using CloudWatch. It helps in identifying performance bottlenecks and also helps in optimizing resource costs.
• It is recommended that you enable billing alerts for an AWS account. It helps to monitor the monthly costs and keep a tab on them.
• For better understanding of CloudWatch visualization, toggle the metrics between UTC and local time.
• By default, CloudWatch provides basic monitoring for resources and records metrics at a five-minute interval. It is recommended that you use detailed monitoring for critical resources, which records metrics at a one-minute interval.
• Enable custom metrics where required. For example, you can enable memory monitoring on EC2 instance, which is not part of the default EC2 metrics.
• Create custom metrics for monitoring application behaviour and link them to CloudWatch. They provide better insight on the application...