cgroups 🔗
The Splunk Distribution of OpenTelemetry Collector uses the Smart Agent receiver with the cgroups monitor type to report statistics about cgroups on Linux. This receiver supports cgroups version 1, not the newer cgroups version 2 unified implementation.
This monitor is available on Linux.
For general information on cgroups, see the Linux control groups and Linux Kernel documentation:
For detailed information on cpu and memory cgroup metrics, see the Red Hat guides:
https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/6/html/resource_management_guide/sec-cpu Note that the
cpuacctcgroup is primarily an informational cgroup that gives detailed information on how long processes in a cgroup used the CPU.
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:
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.
Read more on how to Use Smart Agent monitors with the Collector.
See how to set up the Smart Agent receiver.
Learn about config options in Collector default configuration.
Example 🔗
To activate this integration, add the following to your Collector configuration:
receivers:
smartagent/cgroups:
type: cgroups
... # Additional config
Next, add the monitor to the service.pipelines.metrics.receivers section of your configuration file:
service:
pipelines:
metrics:
receivers: [smartagent/cgroups]
Filtering 🔗
You can limit the cgroups for which metrics are generated with the cgroups config option to the receiver.
For example, the following will only monitor Docker-generated cgroups:
receivers:
smartagent/cgroups:
type: cgroups
cgroups:
"/docker/*"
Configuration settings 🔗
The following table shows the configuration options for this receiver:
Option |
Required |
Type |
Description |
|---|---|---|---|
|
no |
|
The cgroup names to include or exclude, based on the full hierarchy path. This set can be overridden. If not provided, |
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
extraMetricsin Add additional metrics.
Troubleshooting 🔗
If you are not able to see your data in Splunk Observability Cloud, try these tips:
Submit a case in the Splunk Support Portal.
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To learn about even more support options, see Splunk Customer Success.