cAdvisor 🔗

The Splunk Distribution of OpenTelemetry Collector uses the Smart Agent receiver with the cAdvisor monitor type to pull metrics directly from cAdvisor. By default, it runs on port 4194, but it can be configured to any other port.

If you are using Kubernetes, consider the Kubelet stats receiver because many Kubernetes nodes do not expose cAdvisor on a network port, even though they are running it within Kubelet.

If you are running containers with Docker, retrieved metrics might overlap with docker-container-stats‘. Consider not enabling the Docker monitor in a Kubernetes environment, or else use filtering to allow only certain metrics. This will cause the built-in Docker dashboards to be blank, but container metrics will be available on the Kubernetes dashboards instead.

This integration is available on Kubernetes, Linux, and Windows.

Benefits 🔗

After you configure the integration, you can access these features:

View metrics. You can create your own custom dashboards, and most monitors provide built-in dashboards as well. For information about dashboards, see View dashboards in Splunk Observability Cloud.
View a data-driven visualization of the physical servers, virtual machines, AWS instances, and other resources in your environment that are visible to Infrastructure Monitoring. For information about navigators, see Use navigators in Splunk Infrastructure Monitoring.
Access the Metric Finder and search for metrics sent by the monitor. For information, see Search the Metric Finder and Metadata catalog.

Installation 🔗

Follow these steps to deploy this integration:

Deploy the Splunk Distribution of OpenTelemetry Collector to your host or container platform:
- Install on Kubernetes
- Install on Linux
Configure the monitor, as described in the Configuration section.
Restart the Splunk Distribution of OpenTelemetry Collector.

Configuration 🔗

To use this integration of a Smart Agent monitor with the Collector:

Include the Smart Agent receiver in your configuration file.
Add the monitor type to the Collector configuration, both in the receiver and pipelines sections.

See how to Use Smart Agent monitors with the Collector.
See how to set up the Smart Agent receiver.
For a list of common configuration options, refer to Common configuration settings for monitors.
Learn more about the Collector at Get started: Understand and use the Collector.

Example 🔗

To activate this integration, add the following to your Collector configuration:

receivers:
  smartagent/cadvisor:
    type: cadvisor
    ... # Additional config

Next, add the monitor to the service.pipelines.metrics.receivers section of your configuration file:

service:
  pipelines:
    metrics:
      receivers: [smartagent/cadvisor]

Configuration settings 🔗

The following table shows the configuration options for this receiver:

Option	Required	Type	Description
`cadvisor URL`	no	`string`	Where to find cAdvisor. The default value is: `http://localhost:4194`.

Metrics 🔗

The following metrics are available for this integration:

Notes 🔗

To learn more about the available in Observability Cloud see Metric types
In host-based subscription plans, default metrics are those metrics included in host-based subscriptions in Observability Cloud, such as host, container, or bundled metrics. Custom metrics are not provided by default and might be subject to charges. See Metric categories for more information.
In MTS-based subscription plans, all metrics are custom.
To add additional metrics, see how to configure extraMetrics in Add additional metrics

Troubleshooting 🔗

If you are a Splunk Observability Cloud customer and are not able to see your data in Splunk Observability Cloud, you can get help in the following ways.

Available to Splunk Observability Cloud customers

Submit a case in the Splunk Support Portal .
Call Splunk Customer Support .

Available to prospective customers and free trial users

Ask a question and get answers through community support at Splunk Answers .
Join the Splunk #observability user group Slack channel to communicate with customers, partners, and Splunk employees worldwide. To join, see Chat groups in the Get Started with Splunk Community manual.

To learn about even more support options, see Splunk Customer Success .

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