Docs » Available host and application monitors » Configure application exporters and receivers for monitoring » cAdvisor

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 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 Splunk Infrastructure Monitoring navigators.

  • Access the Metric Finder and search for metrics sent by the monitor. For information, see Use the Metric Finder.

Installation 🔗

Follow these steps to deploy this integration:

  1. Deploy the Splunk Distribution of OpenTelemetry Collector to your host or container platform:

  2. Configure the monitor, as described in the Configuration section.

  3. Restart the Splunk Distribution of OpenTelemetry Collector.

Configuration 🔗

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

  1. Include the Smart Agent receiver in your configuration file.

  2. Add the monitor type to the Collector configuration, both in the receiver and pipelines sections.

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 🔗

  • Learn more about the available metric types in Observability Cloud.

  • 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 more about metric categories.

  • To add additional metrics, see how to configure extraMetrics using the Collector.

Troubleshooting 🔗

If you are not able to see your data in Splunk Observability Cloud, try these tips:

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