Kubernetes Engine (OKE) Metrics

Kubernetes Engine metrics help you monitor Kubernetes clusters, along with node pools and individual worker nodes. You can use metrics data to diagnose and troubleshoot cluster and node pool issues.

While frequency varies by metric, default service metrics typically have a frequency of 60 seconds (that is, at least one data point posted per minute).

To view a default set of metrics charts in the Console, navigate to the cluster you're interested in, and then click Metrics. You also can use the Monitoring service to create custom queries. See Building Metric Queries.

IAM policies: To monitor resources, you must be granted the required type of access in a policy  written by an administrator, whether you're using the Console or the REST API with an SDK, CLI, or other tool. The policy must give you access to both the monitoring services and the resources being monitored. If you try to perform an action and get a message that you don't have permission or are unauthorized, contact the administrator to find out what type of access you were granted and which compartment  you need to work in. For more information about user authorizations for monitoring, see IAM Policies.

For example, to observe the condition of nodes in a Kubernetes cluster, you must have been granted access using a policy statement similar to the following:

Allow group <group-name> to read metrics in <location>

The metrics listed in the following tables are automatically available for any Kubernetes clusters you create. You do not need to enable monitoring on the resource to get these metrics.

Kubernetes Engine metrics include the following dimensions:

RESOURCEID

The OCID  of the resource to which the metric applies.

RESOURCEDISPLAYNAME

The name of the resource to which the metric applies.

RESPONSECODE

The response code sent from the Kubernetes API server.

RESPONSEGROUP

The response code group, based on the response code's first digit (for example, 2xx, 3xx, 4xx, 5xx).

CLUSTERID

The OCID  of the cluster to which the metric applies.

NODEPOOLID

The OCID  of the node pool to which the metric applies.

NODESTATE

The state of the compute instance hosting the worker node. For example, ACTIVE, CREATING, DELETING, DELETED, FAILED, UPDATING, INACTIVE.

NODECONDITION

The condition of the worker node, as indicated by the Kubernetes API server. For example, Ready, MemoryPressure, PIDPressure, DiskPressure, NetworkUnavailable.

AVAILABILITYDOMAIN

The availability domain where the compute instance resides.

FAULTDOMAIN

The fault domain where the compute instance resides.

For information about using the API and signing requests, see REST API documentation and Security Credentials. For information about SDKs, see SDKs and the CLI.