KodeKloud Notes

AWS CloudWatch Resource Health provides an automated, unified solution for discovering, monitoring, and managing the health and performance of your EC2 instances. With zero additional cost, you gain real-time visibility into key metrics, fully customizable dashboards, and centralized alerts to streamline operations and troubleshooting.

Key Features

Feature	Benefit
Automated Discovery	Instantly discovers all EC2 instances and begins monitoring without manual setup.
Centralized Dashboard	Offers a single pane of glass across accounts and regions to spot trends and anomalies.
Customizable Views & Filters	Drill into CPU, memory, network I/O or filter by tag, instance type, or availability zone.
Grouping & Sorting	Organize instances by custom tags, AZ, or type to quickly isolate performance issues.
Real-Time Monitoring	See live updates on all metrics, enabling faster response to unexpected behavior.

Prerequisites

Install the CloudWatch agent on each EC2 instance to collect OS-level metrics (memory, disk, etc.).
Configure IAM roles and policies to allow the agent to push metrics and grant users dashboard viewing rights.

Warning

Memory and disk metrics are not collected by default. Ensure the CloudWatch agent configuration file includes the appropriate sections for mem_used_percent, disk_used_percent, and any other OS-level metrics you require.

Note

Your IAM policy must include permissions such as cloudwatch:PutMetricData, logs:CreateLogStream, logs:PutLogEvents, and cloudwatch:GetDashboard to fully leverage Resource Health.

Benefits

Improved Troubleshooting: Quickly pinpoint underutilized or overutilized instances with contextual metrics.
Performance Analysis: Combine historical and real-time data to optimize capacity planning.
Zero Additional Cost: Resource Health is included at no extra charge for all AWS customers.

Next Steps

Deploy the CloudWatch agent using the AWS Systems Manager Run Command.
Create a Resource Health dashboard and apply custom filters for your critical workloads.
Explore automated alerts and integrate with Amazon SNS or third-party tools for notifications.

The image is an infographic about "Resource Health in AWS CloudWatch," highlighting features like automated discovery, centralized views, customizable filters, and no additional charges for AWS customers.

References

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