Documentation
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Index ¶
- Constants
- func GetMetricUtilizationRatio(metrics PodMetricsInfo, targetUtilization int64) (utilizationRatio float64, currentUtilization int64)
- func GetResourceUtilizationRatio(metrics PodMetricsInfo, requests map[string]int64, targetUtilization int32) (utilizationRatio float64, currentUtilization int32, rawAverageValue int64, ...)
- type HeapsterMetricsClient
- func (h *HeapsterMetricsClient) GetObjectMetric(metricName string, namespace string, ...) (int64, time.Time, error)
- func (h *HeapsterMetricsClient) GetRawMetric(metricName string, namespace string, selector labels.Selector) (PodMetricsInfo, time.Time, error)
- func (h *HeapsterMetricsClient) GetResourceMetric(resource v1.ResourceName, namespace string, selector labels.Selector) (PodMetricsInfo, time.Time, error)
- type MetricsClient
- type PodMetricsInfo
Constants ¶
View Source
const (
DefaultHeapsterNamespace = "kube-system"
DefaultHeapsterScheme = "http"
DefaultHeapsterService = "heapster"
DefaultHeapsterPort = "" // use the first exposed port on the service
)
Variables ¶
This section is empty.
Functions ¶
func GetMetricUtilizationRatio ¶ added in v1.5.0
func GetMetricUtilizationRatio(metrics PodMetricsInfo, targetUtilization int64) (utilizationRatio float64, currentUtilization int64)
GetMetricUtilizationRatio takes in a set of metrics and a target utilization value, and calcuates the ratio of desired to actual utilization (returning that and the actual utilization)
func GetResourceUtilizationRatio ¶ added in v1.5.0
func GetResourceUtilizationRatio(metrics PodMetricsInfo, requests map[string]int64, targetUtilization int32) (utilizationRatio float64, currentUtilization int32, rawAverageValue int64, err error)
GetResourceUtilizationRatio takes in a set of metrics, a set of matching requests, and a target utilization percentage, and calcuates the the ratio of desired to actual utilization (returning that, the actual utilization, and the raw average value)
Types ¶
type HeapsterMetricsClient ¶
type HeapsterMetricsClient struct {
// contains filtered or unexported fields
}
func (*HeapsterMetricsClient) GetObjectMetric ¶ added in v1.6.0
func (h *HeapsterMetricsClient) GetObjectMetric(metricName string, namespace string, objectRef *autoscaling.CrossVersionObjectReference) (int64, time.Time, error)
func (*HeapsterMetricsClient) GetRawMetric ¶ added in v1.5.0
func (h *HeapsterMetricsClient) GetRawMetric(metricName string, namespace string, selector labels.Selector) (PodMetricsInfo, time.Time, error)
func (*HeapsterMetricsClient) GetResourceMetric ¶ added in v1.5.0
func (h *HeapsterMetricsClient) GetResourceMetric(resource v1.ResourceName, namespace string, selector labels.Selector) (PodMetricsInfo, time.Time, error)
type MetricsClient ¶
type MetricsClient interface {
// GetResourceMetric gets the given resource metric (and an associated oldest timestamp)
// for all pods matching the specified selector in the given namespace
GetResourceMetric(resource v1.ResourceName, namespace string, selector labels.Selector) (PodMetricsInfo, time.Time, error)
// GetRawMetric gets the given metric (and an associated oldest timestamp)
// for all pods matching the specified selector in the given namespace
GetRawMetric(metricName string, namespace string, selector labels.Selector) (PodMetricsInfo, time.Time, error)
// GetObjectMetric gets the given metric (and an associated timestamp) for the given
// object in the given namespace
GetObjectMetric(metricName string, namespace string, objectRef *autoscaling.CrossVersionObjectReference) (int64, time.Time, error)
}
MetricsClient knows how to query a remote interface to retrieve container-level resource metrics as well as pod-level arbitrary metrics
func NewHeapsterMetricsClient ¶
func NewHeapsterMetricsClient(client clientset.Interface, namespace, scheme, service, port string) MetricsClient
type PodMetricsInfo ¶ added in v1.5.0
type PodMetricsInfo map[string]int64
PodMetricsInfo contains pod metric values as a map from pod names to metric values (the metric values are expected to be the metric as a milli-value)
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