validation

package
v0.6.0 Latest Latest
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 Go to latest Published: Jan 28, 2020 License: Apache-2.0 Imports: 12 Imported by: 33

Documentation

Index

Constants

View Source 
const (
	LocalIngestionRateStrategy  = "local"
	GlobalIngestionRateStrategy = "global"
)

Supported values for enum limits

View Source 
const (

	// ErrQueryTooLong is used in chunk store and query frontend.
	ErrQueryTooLong = "invalid query, length > limit (%s > %s)"

	// RateLimited is one of the values for the reason to discard samples.
	// Declared here to avoid duplication in ingester and distributor.
	RateLimited = "rate_limited"
)

Variables

View Source 
var DiscardedSamples = prometheus.NewCounterVec(
	prometheus.CounterOpts{
		Name: "cortex_discarded_samples_total",
		Help: "The total number of samples that were discarded.",
	},
	[]string{discardReasonLabel, "user"},
)

DiscardedSamples is a metric of the number of discarded samples, by reason.

Functions

func SetDefaultLimitsForYAMLUnmarshalling added in v0.6.0 

func SetDefaultLimitsForYAMLUnmarshalling(defaults Limits)

SetDefaultLimitsForYAMLUnmarshalling sets global default limits, used when loading Limits from YAML files. This is used to ensure per-tenant limits are defaulted to those values.

func ValidateLabels added in v0.2.0 

func ValidateLabels(cfg LabelValidationConfig, userID string, ls []client.LabelAdapter) error

ValidateLabels returns an err if the labels are invalid.

func ValidateSample added in v0.2.0 

func ValidateSample(cfg SampleValidationConfig, userID string, metricName string, s client.Sample) error

ValidateSample returns an err if the sample is invalid.

Types

type LabelValidationConfig added in v0.2.0 

type LabelValidationConfig interface {
	EnforceMetricName(userID string) bool
	MaxLabelNamesPerSeries(userID string) int
	MaxLabelNameLength(userID string) int
	MaxLabelValueLength(userID string) int
}

LabelValidationConfig helps with getting required config to validate labels.

type Limits 

type Limits struct {
	// Distributor enforced limits.
	IngestionRate          float64             `yaml:"ingestion_rate"`
	IngestionRateStrategy  string              `yaml:"ingestion_rate_strategy"`
	IngestionBurstSize     int                 `yaml:"ingestion_burst_size"`
	AcceptHASamples        bool                `yaml:"accept_ha_samples"`
	HAClusterLabel         string              `yaml:"ha_cluster_label"`
	HAReplicaLabel         string              `yaml:"ha_replica_label"`
	DropLabels             flagext.StringSlice `yaml:"drop_labels"`
	MaxLabelNameLength     int                 `yaml:"max_label_name_length"`
	MaxLabelValueLength    int                 `yaml:"max_label_value_length"`
	MaxLabelNamesPerSeries int                 `yaml:"max_label_names_per_series"`
	RejectOldSamples       bool                `yaml:"reject_old_samples"`
	RejectOldSamplesMaxAge time.Duration       `yaml:"reject_old_samples_max_age"`
	CreationGracePeriod    time.Duration       `yaml:"creation_grace_period"`
	EnforceMetricName      bool                `yaml:"enforce_metric_name"`

	// Ingester enforced limits.
	MaxSeriesPerQuery        int `yaml:"max_series_per_query"`
	MaxSamplesPerQuery       int `yaml:"max_samples_per_query"`
	MaxLocalSeriesPerUser    int `yaml:"max_series_per_user"`
	MaxLocalSeriesPerMetric  int `yaml:"max_series_per_metric"`
	MaxGlobalSeriesPerUser   int `yaml:"max_global_series_per_user"`
	MaxGlobalSeriesPerMetric int `yaml:"max_global_series_per_metric"`
	MinChunkLength           int `yaml:"min_chunk_length"`

	// Querier enforced limits.
	MaxChunksPerQuery   int           `yaml:"max_chunks_per_query"`
	MaxQueryLength      time.Duration `yaml:"max_query_length"`
	MaxQueryParallelism int           `yaml:"max_query_parallelism"`
	CardinalityLimit    int           `yaml:"cardinality_limit"`

	// Config for overrides, convenient if it goes here. [Deprecated in favor of RuntimeConfig flag in cortex.Config]
	PerTenantOverrideConfig string        `yaml:"per_tenant_override_config"`
	PerTenantOverridePeriod time.Duration `yaml:"per_tenant_override_period"`
}

Limits describe all the limits for users; can be used to describe global default limits via flags, or per-user limits via yaml config.

func (*Limits) RegisterFlags 

func (l *Limits) RegisterFlags(f *flag.FlagSet)

RegisterFlags adds the flags required to config this to the given FlagSet

func (*Limits) UnmarshalYAML 

func (l *Limits) UnmarshalYAML(unmarshal func(interface{}) error) error

UnmarshalYAML implements the yaml.Unmarshaler interface.

func (*Limits) Validate added in v0.4.0 

func (l *Limits) Validate(shardByAllLabels bool) error

Validate the limits config and returns an error if the validation doesn't pass

type Overrides 

type Overrides struct {
	// contains filtered or unexported fields
}

Overrides periodically fetch a set of per-user overrides, and provides convenience functions for fetching the correct value.

func NewOverrides 

func NewOverrides(defaults Limits, tenantLimits TenantLimits) (*Overrides, error)

NewOverrides makes a new Overrides.

func (*Overrides) AcceptHASamples 

func (o *Overrides) AcceptHASamples(userID string) bool

AcceptHASamples returns whether the distributor should track and accept samples from HA replicas for this user.

func (*Overrides) CardinalityLimit 

func (o *Overrides) CardinalityLimit(userID string) int

CardinalityLimit returns the maximum number of timeseries allowed in a query.

func (*Overrides) CreationGracePeriod 

func (o *Overrides) CreationGracePeriod(userID string) time.Duration

CreationGracePeriod is misnamed, and actually returns how far into the future we should accept samples.

func (*Overrides) DropLabels added in v0.6.0 

func (o *Overrides) DropLabels(userID string) flagext.StringSlice

DropLabels returns the list of labels to be dropped when ingesting HA samples for the user.

func (*Overrides) EnforceMetricName 

func (o *Overrides) EnforceMetricName(userID string) bool

EnforceMetricName whether to enforce the presence of a metric name.

func (*Overrides) HAClusterLabel 

func (o *Overrides) HAClusterLabel(userID string) string

HAClusterLabel returns the cluster label to look for when deciding whether to accept a sample from a Prometheus HA replica.

func (*Overrides) HAReplicaLabel 

func (o *Overrides) HAReplicaLabel(userID string) string

HAReplicaLabel returns the replica label to look for when deciding whether to accept a sample from a Prometheus HA replica.

func (*Overrides) IngestionBurstSize 

func (o *Overrides) IngestionBurstSize(userID string) int

IngestionBurstSize returns the burst size for ingestion rate.

func (*Overrides) IngestionRate 

func (o *Overrides) IngestionRate(userID string) float64

IngestionRate returns the limit on ingester rate (samples per second).

func (*Overrides) IngestionRateStrategy added in v0.6.0 

func (o *Overrides) IngestionRateStrategy() string

IngestionRateStrategy returns whether the ingestion rate limit should be individually applied to each distributor instance (local) or evenly shared across the cluster (global).

func (*Overrides) MaxChunksPerQuery 

func (o *Overrides) MaxChunksPerQuery(userID string) int

MaxChunksPerQuery returns the maximum number of chunks allowed per query.

func (*Overrides) MaxGlobalSeriesPerMetric added in v0.4.0 

func (o *Overrides) MaxGlobalSeriesPerMetric(userID string) int

MaxGlobalSeriesPerMetric returns the maximum number of series allowed per metric across the cluster.

func (*Overrides) MaxGlobalSeriesPerUser added in v0.4.0 

func (o *Overrides) MaxGlobalSeriesPerUser(userID string) int

MaxGlobalSeriesPerUser returns the maximum number of series a user is allowed to store across the cluster.

func (*Overrides) MaxLabelNameLength 

func (o *Overrides) MaxLabelNameLength(userID string) int

MaxLabelNameLength returns maximum length a label name can be.

func (*Overrides) MaxLabelNamesPerSeries 

func (o *Overrides) MaxLabelNamesPerSeries(userID string) int

MaxLabelNamesPerSeries returns maximum number of label/value pairs timeseries.

func (*Overrides) MaxLabelValueLength 

func (o *Overrides) MaxLabelValueLength(userID string) int

MaxLabelValueLength returns maximum length a label value can be. This also is the maximum length of a metric name.

func (*Overrides) MaxLocalSeriesPerMetric added in v0.4.0 

func (o *Overrides) MaxLocalSeriesPerMetric(userID string) int

MaxLocalSeriesPerMetric returns the maximum number of series allowed per metric in a single ingester.

func (*Overrides) MaxLocalSeriesPerUser added in v0.4.0 

func (o *Overrides) MaxLocalSeriesPerUser(userID string) int

MaxLocalSeriesPerUser returns the maximum number of series a user is allowed to store in a single ingester.

func (*Overrides) MaxQueryLength 

func (o *Overrides) MaxQueryLength(userID string) time.Duration

MaxQueryLength returns the limit of the length (in time) of a query.

func (*Overrides) MaxQueryParallelism 

func (o *Overrides) MaxQueryParallelism(userID string) int

MaxQueryParallelism returns the limit to the number of sub-queries the frontend will process in parallel.

func (*Overrides) MaxSamplesPerQuery 

func (o *Overrides) MaxSamplesPerQuery(userID string) int

MaxSamplesPerQuery returns the maximum number of samples in a query (from the ingester).

func (*Overrides) MaxSeriesPerQuery 

func (o *Overrides) MaxSeriesPerQuery(userID string) int

MaxSeriesPerQuery returns the maximum number of series a query is allowed to hit.

func (*Overrides) MinChunkLength added in v0.2.0 

func (o *Overrides) MinChunkLength(userID string) int

MinChunkLength returns the minimum size of chunk that will be saved by ingesters

func (*Overrides) RejectOldSamples 

func (o *Overrides) RejectOldSamples(userID string) bool

RejectOldSamples returns true when we should reject samples older than certain age.

func (*Overrides) RejectOldSamplesMaxAge 

func (o *Overrides) RejectOldSamplesMaxAge(userID string) time.Duration

RejectOldSamplesMaxAge returns the age at which samples should be rejected.

type SampleValidationConfig added in v0.2.0 

type SampleValidationConfig interface {
	RejectOldSamples(userID string) bool
	RejectOldSamplesMaxAge(userID string) time.Duration
	CreationGracePeriod(userID string) time.Duration
}

SampleValidationConfig helps with getting required config to validate sample.

type TenantLimits added in v0.6.0 

type TenantLimits func(userID string) *Limits

TenantLimits is a function that returns limits for given tenant, or nil, if there are no tenant-specific limits.

Source Files

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