replicas

package
v1.1.0 Latest Latest
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Published: Dec 2, 2022 License: Apache-2.0 Imports: 4 Imported by: 0

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Types

type Calculator

type Calculator interface {
	GetUsageRatioReplicaCount(currentReplicas int32, usageRatio float64, readyPodCount int64) int32
	GetPlainMetricReplicaCount(metrics podmetrics.MetricsInfo,
		currentReplicas int32,
		targetUtilization int64,
		readyPodCount int64,
		missingPods,
		ignoredPods sets.String) int32
}

Calculator is used to calculate replica counts

type ReplicaCalculator

type ReplicaCalculator struct {
	Tolerance float64
}

ReplicaCalculator uses a tolerance provided to calculate replica counts for scaling up/down/remaining the same

func (*ReplicaCalculator) GetPlainMetricReplicaCount

func (r *ReplicaCalculator) GetPlainMetricReplicaCount(metrics podmetrics.MetricsInfo,
	currentReplicas int32,
	targetUtilization int64,
	readyPodCount int64,
	missingPods,
	ignoredPods sets.String) int32

GetPlainMetricReplicaCount calculates the replica count based on the metrics of each pod and a target utilization, providing a different replica count if the calculated usage ratio is beyond the tolerance

func (*ReplicaCalculator) GetUsageRatioReplicaCount

func (r *ReplicaCalculator) GetUsageRatioReplicaCount(currentReplicas int32, usageRatio float64, readyPodCount int64) int32

GetUsageRatioReplicaCount calculates the replica count based on the number of replicas, number of ready pods and the usage ratio of the metric - providing a different value if beyond the tolerance

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