Datadog Agent is a critical component of the Datadog ecosystem, designed to collect metrics, traces, and logs from your infrastructure and applications. It provides real-time insights into the performance and health of your systems, enabling you to monitor and optimize your operations effectively. For more information, visit the official Datadog Agent documentation.
One common issue users encounter is the Datadog Agent not collecting MongoDB metrics. This symptom is typically observed when expected MongoDB metrics do not appear in the Datadog dashboard, leading to gaps in monitoring and analysis.
The primary reason for this issue is that MongoDB metrics collection is either not enabled or the Datadog Agent lacks the necessary permissions to access the MongoDB instance. Without proper configuration, the agent cannot retrieve and report the required metrics.
To diagnose the root cause, verify if the MongoDB integration is enabled in your Datadog Agent configuration. Additionally, ensure that the agent has the correct credentials and network access to connect to the MongoDB instance.
First, ensure that the MongoDB integration is enabled in your Datadog Agent. You can do this by editing the datadog.yaml configuration file. Add or update the following section:
init_config:
instances:
- server: mongodb://:@:
# Add any additional configuration options here
Replace <username>, <password>, <host>, and <port> with your MongoDB instance details.
Ensure that the Datadog Agent has the necessary permissions to access the MongoDB instance. The user credentials provided in the configuration should have read access to the required databases and collections.
After making changes to the configuration, restart the Datadog Agent to apply the updates. Use the following command to restart the agent:
sudo systemctl restart datadog-agent
Once the agent is restarted, verify that MongoDB metrics are being collected. You can check the Datadog dashboard for the presence of MongoDB metrics or use the Datadog Agent status command to confirm that the integration is active.
By following these steps, you should be able to resolve the issue of Datadog Agent not collecting MongoDB metrics. Proper configuration and permissions are crucial for successful metrics collection. For further assistance, refer to the Datadog MongoDB integration guide.
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