import "k8s.io/kubernetes/pkg/scheduler/metrics"
metric_recorder.go metrics.go profile_metrics.go
const ( // SchedulerSubsystem - subsystem name used by scheduler SchedulerSubsystem = "scheduler" // PrioritizingExtender - prioritizing extender operation label value PrioritizingExtender = "prioritizing_extender" // Binding - binding operation label value Binding = "binding" )
var ( SchedulingAlgorithmLatency = metrics.NewHistogram( &metrics.HistogramOpts{ Subsystem: SchedulerSubsystem, Name: "scheduling_algorithm_duration_seconds", Help: "Scheduling algorithm latency in seconds", Buckets: metrics.ExponentialBuckets(0.001, 2, 15), StabilityLevel: metrics.ALPHA, }, ) PreemptionVictims = metrics.NewHistogram( &metrics.HistogramOpts{ Subsystem: SchedulerSubsystem, Name: "preemption_victims", Help: "Number of selected preemption victims", Buckets: metrics.LinearBuckets(5, 5, 10), StabilityLevel: metrics.ALPHA, }) PreemptionAttempts = metrics.NewCounter( &metrics.CounterOpts{ Subsystem: SchedulerSubsystem, Name: "preemption_attempts_total", Help: "Total preemption attempts in the cluster till now", StabilityLevel: metrics.ALPHA, }) SchedulerGoroutines = metrics.NewGaugeVec( &metrics.GaugeOpts{ Subsystem: SchedulerSubsystem, Name: "scheduler_goroutines", Help: "Number of running goroutines split by the work they do such as binding.", StabilityLevel: metrics.ALPHA, }, []string{"work"}) PodSchedulingDuration = metrics.NewHistogramVec( &metrics.HistogramOpts{ Subsystem: SchedulerSubsystem, Name: "pod_scheduling_duration_seconds", Help: "E2e latency for a pod being scheduled which may include multiple scheduling attempts.", Buckets: metrics.ExponentialBuckets(0.01, 2, 20), StabilityLevel: metrics.ALPHA, }, []string{"attempts"}) PodSchedulingAttempts = metrics.NewHistogram( &metrics.HistogramOpts{ Subsystem: SchedulerSubsystem, Name: "pod_scheduling_attempts", Help: "Number of attempts to successfully schedule a pod.", Buckets: metrics.ExponentialBuckets(1, 2, 5), StabilityLevel: metrics.ALPHA, }) FrameworkExtensionPointDuration = metrics.NewHistogramVec( &metrics.HistogramOpts{ Subsystem: SchedulerSubsystem, Name: "framework_extension_point_duration_seconds", Help: "Latency for running all plugins of a specific extension point.", Buckets: metrics.ExponentialBuckets(0.0001, 2, 12), StabilityLevel: metrics.ALPHA, }, []string{"extension_point", "status", "profile"}) PluginExecutionDuration = metrics.NewHistogramVec( &metrics.HistogramOpts{ Subsystem: SchedulerSubsystem, Name: "plugin_execution_duration_seconds", Help: "Duration for running a plugin at a specific extension point.", Buckets: metrics.ExponentialBuckets(0.00001, 1.5, 20), StabilityLevel: metrics.ALPHA, }, []string{"plugin", "extension_point", "status"}) SchedulerQueueIncomingPods = metrics.NewCounterVec( &metrics.CounterOpts{ Subsystem: SchedulerSubsystem, Name: "queue_incoming_pods_total", Help: "Number of pods added to scheduling queues by event and queue type.", StabilityLevel: metrics.ALPHA, }, []string{"queue", "event"}) PermitWaitDuration = metrics.NewHistogramVec( &metrics.HistogramOpts{ Subsystem: SchedulerSubsystem, Name: "permit_wait_duration_seconds", Help: "Duration of waiting on permit.", Buckets: metrics.ExponentialBuckets(0.001, 2, 15), StabilityLevel: metrics.ALPHA, }, []string{"result"}) CacheSize = metrics.NewGaugeVec( &metrics.GaugeOpts{ Subsystem: SchedulerSubsystem, Name: "scheduler_cache_size", Help: "Number of nodes, pods, and assumed (bound) pods in the scheduler cache.", StabilityLevel: metrics.ALPHA, }, []string{"type"}) )
All the histogram based metrics have 1ms as size for the smallest bucket.
func ActivePods() metrics.GaugeMetric
ActivePods returns the pending pods metrics with the label active
func BackoffPods() metrics.GaugeMetric
BackoffPods returns the pending pods metrics with the label backoff
GetGather returns the gatherer. It used by test case outside current package.
PodScheduleError can records a scheduling attempt that had an error and the duration since `start`.
PodScheduled can records a successful scheduling attempt and the duration since `start`.
PodUnschedulable can records a scheduling attempt for an unschedulable pod and the duration since `start`.
func Register()
Register all metrics.
func RegisterMetrics(extraMetrics ...metrics.Registerable)
RegisterMetrics registers a list of metrics. This function is exported because it is intended to be used by out-of-tree plugins to register their custom metrics.
SinceInSeconds gets the time since the specified start in seconds.
func UnschedulablePods() metrics.GaugeMetric
UnschedulablePods returns the pending pods metrics with the label unschedulable
type MetricRecorder interface { Inc() Dec() Clear() }
MetricRecorder represents a metric recorder which takes action when the metric Inc(), Dec() and Clear()
type PendingPodsRecorder struct {
// contains filtered or unexported fields
}
PendingPodsRecorder is an implementation of MetricRecorder
func NewActivePodsRecorder() *PendingPodsRecorder
NewActivePodsRecorder returns ActivePods in a Prometheus metric fashion
func NewBackoffPodsRecorder() *PendingPodsRecorder
NewBackoffPodsRecorder returns BackoffPods in a Prometheus metric fashion
func NewUnschedulablePodsRecorder() *PendingPodsRecorder
NewUnschedulablePodsRecorder returns UnschedulablePods in a Prometheus metric fashion
func (r *PendingPodsRecorder) Clear()
Clear set a metric counter to 0, in an atomic way
func (r *PendingPodsRecorder) Dec()
Dec decreases a metric counter by 1, in an atomic way
func (r *PendingPodsRecorder) Inc()
Inc increases a metric counter by 1, in an atomic way
Path | Synopsis |
---|---|
resources | Package resources provides a metrics collector that reports the resource consumption (requests and limits) of the pods in the cluster as the scheduler and kubelet would interpret it. |
Package metrics imports 5 packages (graph) and is imported by 183 packages. Updated 2021-01-04. Refresh now. Tools for package owners.