Metrics
Karpenter makes several metrics available in Prometheus format to allow monitoring cluster provisioning status. These metrics are available by default at karpenter.karpenter.svc.cluster.local:8080/metrics configurable via the METRICS_PORT environment variable documented here
Consistency Metrics
karpenter_consistency_errors
Number of consistency checks that have failed.
Deprovisioning Metrics
karpenter_deprovisioning_actions_performed
Number of deprovisioning actions performed. Labeled by deprovisioner.
karpenter_deprovisioning_eligible_machines
Number of machines eligible for deprovisioning by Karpenter. Labeled by deprovisioner
karpenter_deprovisioning_evaluation_duration_seconds
Duration of the deprovisioning evaluation process in seconds.
karpenter_deprovisioning_replacement_node_initialized_seconds
Amount of time required for a replacement node to become initialized.
Interruption Metrics
karpenter_interruption_actions_performed
Number of notification actions performed. Labeled by action
karpenter_interruption_deleted_messages
Count of messages deleted from the SQS queue.
karpenter_interruption_message_latency_time_seconds
Length of time between message creation in queue and an action taken on the message by the controller.
karpenter_interruption_received_messages
Count of messages received from the SQS queue. Broken down by message type and whether the message was actionable.
Provisioner Metrics
karpenter_provisioner_limit
The Provisioner Limits are the limits specified on the provisioner that restrict the quantity of resources provisioned. Labeled by provisioner name and resource type.
karpenter_provisioner_scheduling_duration_seconds
Duration of scheduling process in seconds. Broken down by provisioner and error.
karpenter_provisioner_usage
The Provisioner Usage is the amount of resources that have been provisioned by a particular provisioner. Labeled by provisioner name and resource type.
karpenter_provisioner_usage_pct
The Provisioner Usage Percentage is the percentage of each resource used based on the resources provisioned and the limits that have been configured in the range [0,100]. Labeled by provisioner name and resource type.
Nodes Metrics
karpenter_nodes_allocatable
Node allocatable are the resources allocatable by nodes.
karpenter_nodes_created
Number of nodes created in total by Karpenter. Labeled by reason the node was created and the owning provisioner.
karpenter_nodes_system_overhead
Node system daemon overhead are the resources reserved for system overhead, the difference between the node’s capacity and allocatable values are reported by the status.
karpenter_nodes_terminated
Number of nodes terminated in total by Karpenter. Labeled by reason the node was terminated and the owning provisioner.
karpenter_nodes_termination_time_seconds
The time taken between a node’s deletion request and the removal of its finalizer
karpenter_nodes_total_daemon_limits
Node total daemon limits are the resources specified by DaemonSet pod limits.
karpenter_nodes_total_daemon_requests
Node total daemon requests are the resource requested by DaemonSet pods bound to nodes.
karpenter_nodes_total_pod_limits
Node total pod limits are the resources specified by non-DaemonSet pod limits.
karpenter_nodes_total_pod_requests
Node total pod requests are the resources requested by non-DaemonSet pods bound to nodes.
Pods Metrics
karpenter_pods_startup_time_seconds
The time from pod creation until the pod is running.
karpenter_pods_state
Pod state is the current state of pods. This metric can be used several ways as it is labeled by the pod name, namespace, owner, node, provisioner name, zone, architecture, capacity type, instance type and pod phase.
Cloudprovider Metrics
karpenter_cloudprovider_duration_seconds
Duration of cloud provider method calls. Labeled by the controller, method name and provider.
Cloudprovider Batcher Metrics
karpenter_cloudprovider_batcher_batch_size
Size of the request batch per batcher
karpenter_cloudprovider_batcher_batch_time_seconds
Duration of the batching window per batcher