Datadog Agent Agent not collecting CPU metrics

CPU metrics collection is not enabled or misconfigured.

Understanding Datadog Agent

Datadog Agent is a powerful tool designed to collect metrics and events from your infrastructure and applications. It provides real-time visibility into the performance of your systems, helping you monitor and optimize your operations. The Agent runs on your hosts and sends data to the Datadog platform, where it can be visualized and analyzed.

Identifying the Symptom

One common issue users encounter is the Datadog Agent not collecting CPU metrics. This symptom is observed when expected CPU usage data is missing from the Datadog dashboard, leading to gaps in monitoring and analysis.

What You Might See

In the Datadog dashboard, you might notice that CPU-related graphs are empty or not updating. Additionally, logs might not show any CPU metric collection activity.

Exploring the Issue

The root cause of this issue is often that CPU metrics collection is not enabled or is misconfigured. The Datadog Agent requires specific configurations to collect and report CPU metrics accurately.

Configuration Files

Check the configuration files, typically located in /etc/datadog-agent/datadog.yaml or a similar path, to ensure that CPU metrics collection is enabled. Misconfigurations in these files can prevent the Agent from collecting the necessary data.

Steps to Resolve the Issue

Follow these steps to enable and verify CPU metrics collection:

Step 1: Verify Configuration

Open the Datadog Agent configuration file:

sudo nano /etc/datadog-agent/datadog.yaml

Ensure that the following line is present and uncommented:

collect_cpu_metrics: true

Step 2: Restart the Agent

After making changes, restart the Datadog Agent to apply the new configuration:

sudo systemctl restart datadog-agent

Step 3: Check Agent Status

Verify that the Agent is running correctly and collecting metrics:

sudo datadog-agent status

Look for CPU metrics in the output to confirm they are being collected.

Additional Resources

For more detailed information on configuring the Datadog Agent, refer to the official Datadog Agent documentation. If issues persist, consider reaching out to Datadog Support for further assistance.

By following these steps, you should be able to resolve the issue of the Datadog Agent not collecting CPU metrics, ensuring comprehensive monitoring of your systems.

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