Metrics

Inspect Karpenter 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:8000/metrics configurable via the METRICS_PORT environment variable documented here

karpenter_build_info

A metric with a constant ‘1’ value labeled by version from which karpenter was built.

Nodepool Metrics

karpenter_nodepool_usage

The nodepool usage is the amount of resources that have been provisioned by a particular nodepool. Labeled by nodepool name and resource type.

karpenter_nodepool_limit

The nodepool limits are the limits specified on the nodepool that restrict the quantity of resources provisioned. Labeled by nodepool name and resource type.

Nodes Metrics

karpenter_nodes_total_pod_requests

Node total pod requests are the resources requested by non-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_daemon_requests

Node total daemon requests are the resource requested by DaemonSet pods bound to nodes.

karpenter_nodes_total_daemon_limits

Node total daemon limits are the resources specified by DaemonSet pod limits.

karpenter_nodes_termination_time_seconds

The time taken between a node’s deletion request and the removal of its finalizer

karpenter_nodes_terminated

Number of nodes terminated in total by Karpenter. Labeled by owning nodepool.

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_leases_deleted

Number of deleted leaked leases.

karpenter_nodes_eviction_queue_depth

The number of pods currently waiting for a successful eviction in the eviction queue.

karpenter_nodes_created

Number of nodes created in total by Karpenter. Labeled by owning nodepool.

karpenter_nodes_allocatable

Node allocatable are the resources allocatable by nodes.

Pods Metrics

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, nodepool name, zone, architecture, capacity type, instance type and pod phase.

karpenter_pods_startup_time_seconds

The time from pod creation until the pod is running.

Provisioner Metrics

karpenter_provisioner_scheduling_simulation_duration_seconds

Duration of scheduling simulations used for deprovisioning and provisioning in seconds.

karpenter_provisioner_scheduling_queue_depth

The number of pods currently waiting to be scheduled.

karpenter_provisioner_scheduling_duration_seconds

Duration of scheduling process in seconds.

Nodeclaims Metrics

karpenter_nodeclaims_terminated

Number of nodeclaims terminated in total by Karpenter. Labeled by reason the nodeclaim was terminated and the owning nodepool.

karpenter_nodeclaims_registered

Number of nodeclaims registered in total by Karpenter. Labeled by the owning nodepool.

karpenter_nodeclaims_launched

Number of nodeclaims launched in total by Karpenter. Labeled by the owning nodepool.

karpenter_nodeclaims_initialized

Number of nodeclaims initialized in total by Karpenter. Labeled by the owning nodepool.

karpenter_nodeclaims_drifted

Number of nodeclaims drifted reasons in total by Karpenter. Labeled by drift type of the nodeclaim and the owning nodepool.

karpenter_nodeclaims_disrupted

Number of nodeclaims disrupted in total by Karpenter. Labeled by disruption type of the nodeclaim and the owning nodepool.

karpenter_nodeclaims_created

Number of nodeclaims created in total by Karpenter. Labeled by reason the nodeclaim was created and the owning nodepool.

Interruption Metrics

karpenter_interruption_received_messages

Count of messages received from the SQS queue. Broken down by message type and whether the message was actionable.

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_deleted_messages

Count of messages deleted from the SQS queue.

karpenter_interruption_actions_performed

Number of notification actions performed. Labeled by action

Disruption Metrics

karpenter_disruption_replacement_nodeclaim_initialized_seconds

Amount of time required for a replacement nodeclaim to become initialized.

karpenter_disruption_replacement_nodeclaim_failures_total

The number of times that Karpenter failed to launch a replacement node for disruption. Labeled by disruption method.

karpenter_disruption_queue_depth

The number of commands currently being waited on in the disruption orchestration queue.

karpenter_disruption_pods_disrupted_total

Total number of reschedulable pods disrupted on nodes. Labeled by NodePool, disruption action, method, and consolidation type.

karpenter_disruption_nodes_disrupted_total

Total number of nodes disrupted. Labeled by NodePool, disruption action, method, and consolidation type.

karpenter_disruption_evaluation_duration_seconds

Duration of the disruption evaluation process in seconds. Labeled by method and consolidation type.

karpenter_disruption_eligible_nodes

Number of nodes eligible for disruption by Karpenter. Labeled by disruption method and consolidation type.

karpenter_disruption_consolidation_timeouts_total

Number of times the Consolidation algorithm has reached a timeout. Labeled by consolidation type.

karpenter_disruption_budgets_allowed_disruptions

The number of nodes for a given NodePool that can be disrupted at a point in time. Labeled by NodePool. Note that allowed disruptions can change very rapidly, as new nodes may be created and others may be deleted at any point.

karpenter_disruption_actions_performed_total

Number of disruption actions performed. Labeled by disruption action, method, and consolidation type.

Consistency Metrics

karpenter_consistency_errors

Number of consistency checks that have failed.

Cluster State Metrics

karpenter_cluster_state_synced

Returns 1 if cluster state is synced and 0 otherwise. Synced checks that nodeclaims and nodes that are stored in the APIServer have the same representation as Karpenter’s cluster state

karpenter_cluster_state_node_count

Current count of nodes in cluster state

Cloudprovider Metrics

karpenter_cloudprovider_instance_type_offering_price_estimate

Instance type offering estimated hourly price used when making informed decisions on node cost calculation, based on instance type, capacity type, and zone.

karpenter_cloudprovider_instance_type_offering_available

Instance type offering availability, based on instance type, capacity type, and zone

karpenter_cloudprovider_instance_type_memory_bytes

Memory, in bytes, for a given instance type.

karpenter_cloudprovider_instance_type_cpu_cores

VCPUs cores for a given instance type.

karpenter_cloudprovider_errors_total

Total number of errors returned from CloudProvider calls.

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_time_seconds

Duration of the batching window per batcher

karpenter_cloudprovider_batcher_batch_size

Size of the request batch per batcher

Controller Runtime Metrics

controller_runtime_reconcile_total

Total number of reconciliations per controller

controller_runtime_reconcile_time_seconds

Length of time per reconciliation per controller

controller_runtime_reconcile_errors_total

Total number of reconciliation errors per controller

controller_runtime_max_concurrent_reconciles

Maximum number of concurrent reconciles per controller

controller_runtime_active_workers

Number of currently used workers per controller

Last modified May 29, 2024: chore: Release v0.37.0 (#6278) (b95b3cf4)