chunk

Documentation

Index

• Variables
• func ChunksToMatrix(ctx context.Context, chunks []Chunk, from, through model.Time) (model.Matrix, error)
• func FindSetMatches(pattern string) []string
• type Chunk
  • func NewChunk(metric labels.Labels, c prom_chunk.Chunk, from, through model.Time) Chunk
  • func (c *Chunk) Samples(from, through model.Time) ([]model.SamplePair, error)

Variables

var BenchmarkLabels = labels.Labels{
	{Name: model.MetricNameLabel, Value: "container_cpu_usage_seconds_total"},
	{Name: "beta_kubernetes_io_arch", Value: "amd64"},
	{Name: "beta_kubernetes_io_instance_type", Value: "c3.somesize"},
	{Name: "beta_kubernetes_io_os", Value: "linux"},
	{Name: "container_name", Value: "some-name"},
	{Name: "cpu", Value: "cpu01"},
	{Name: "failure_domain_beta_kubernetes_io_region", Value: "somewhere-1"},
	{Name: "failure_domain_beta_kubernetes_io_zone", Value: "somewhere-1b"},
	{Name: "id", Value: "/kubepods/burstable/pod6e91c467-e4c5-11e7-ace3-0a97ed59c75e/a3c8498918bd6866349fed5a6f8c643b77c91836427fb6327913276ebc6bde28"},
	{Name: "image", Value: "registry/organisation/name@sha256:dca3d877a80008b45d71d7edc4fd2e44c0c8c8e7102ba5cbabec63a374d1d506"},
	{Name: "instance", Value: "ip-111-11-1-11.ec2.internal"},
	{Name: "job", Value: "kubernetes-cadvisor"},
	{Name: "kubernetes_io_hostname", Value: "ip-111-11-1-11"},
	{Name: "monitor", Value: "prod"},
	{Name: "name", Value: "k8s_some-name_some-other-name-5j8s8_kube-system_6e91c467-e4c5-11e7-ace3-0a97ed59c75e_0"},
	{Name: "namespace", Value: "kube-system"},
	{Name: "pod_name", Value: "some-other-name-5j8s8"},
}

BenchmarkLabels is a real example from Kubernetes' embedded cAdvisor metrics, lightly obfuscated

Functions

func ChunksToMatrix

func ChunksToMatrix(ctx context.Context, chunks []Chunk, from, through model.Time) (model.Matrix, error)

ChunksToMatrix converts a set of chunks to a model.Matrix.

func FindSetMatches

func FindSetMatches(pattern string) []string

FindSetMatches returns list of values that can be equality matched on. copied from Prometheus querier.go, removed check for Prometheus wrapper.

Types

type Chunk

type Chunk struct {
	// These fields will be in all chunks, including old ones.
	From    model.Time    `json:"from"`
	Through model.Time    `json:"through"`
	Metric  labels.Labels `json:"metric"`

	// We never use Delta encoding (the zero value), so if this entry is
	// missing, we default to DoubleDelta.
	Encoding prom_chunk.Encoding `json:"encoding"`
	Data     prom_chunk.Chunk    `json:"-"`
}

Chunk contains encoded timeseries data

func NewChunk

func NewChunk(metric labels.Labels, c prom_chunk.Chunk, from, through model.Time) Chunk

NewChunk creates a new chunk

func (*Chunk) Samples

func (c *Chunk) Samples(from, through model.Time) ([]model.SamplePair, error)

Samples returns all SamplePairs for the chunk.