Final answer:
Amazon CloudWatch is the service used to extract important metrics from Amazon RDS and Amazon EC2 instances, providing data for monitoring applications, optimizing resource utilization, and observing operational health.
Step-by-step explanation:
The service that can help you extract important metrics from Amazon Relational Database Service (Amazon RDS) and Amazon Elastic Compute Cloud (Amazon EC2) instances is Amazon CloudWatch. Amazon CloudWatch is a monitoring and management service built for developers, system operators, site reliability engineers (SREs), and IT managers. It provides data and actionable insights to monitor your applications, understand and respond to system-wide performance changes, optimize resource utilization, and get a unified view of operational health.
Amazon CloudWatch collects monitoring metrics and logs which can be visualized using automated dashboards, set for alarms, and used to react to changes in your AWS resources. For example, when monitoring Amazon EC2 instances, CloudWatch can provide metrics like CPU utilization, disk I/O, and network usage. Similarly, when working with Amazon RDS, it can provide metrics on database connections, disk space usage, and read/write throughput, among others.
To set up monitoring with Amazon CloudWatch, you would typically:
- Identify the metrics you wish to monitor in your EC2 instances and RDS databases.
- Use the Amazon CloudWatch console, AWS CLI, or AWS SDKs to retrieve the current monitoring data for your resources.
- Create CloudWatch alarms to notify you when your metrics cross a defined threshold.
- Use CloudWatch dashboards to create visual representations of your metrics and log data to keep an at-a-glance view of resources.
By utilizing Amazon CloudWatch, users can maintain a robust and proactively managed AWS environment which can be critical for ensuring the performance and reliability of your services.
Learn more about Amazon CloudWatch