validation

package
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 Go to latest Published: Aug 29, 2023 License: AGPL-3.0 Imports: 20 Imported by: 0

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Index

Constants

View Source 
const (
	ReasonLabel string = "reason"
	Unknown     Reason = "unknown"
	// InvalidLabels is a reason for discarding profiles which have labels that are invalid.
	InvalidLabels Reason = "invalid_labels"
	// MissingLabels is a reason for discarding profiles which have no labels.
	MissingLabels Reason = "missing_labels"
	// RateLimited is one of the values for the reason to discard samples.
	RateLimited Reason = "rate_limited"
	// OutOfOrder is a reason for discarding profiles when Pyroscope doesn't accept out
	// of order profiles.
	OutOfOrder Reason = "out_of_order"
	// MaxLabelNamesPerSeries is a reason for discarding a request which has too many label names
	MaxLabelNamesPerSeries Reason = "max_label_names_per_series"
	// LabelNameTooLong is a reason for discarding a request which has a label name too long
	LabelNameTooLong Reason = "label_name_too_long"
	// LabelValueTooLong is a reason for discarding a request which has a label value too long
	LabelValueTooLong Reason = "label_value_too_long"
	// DuplicateLabelNames is a reason for discarding a request which has duplicate label names
	DuplicateLabelNames Reason = "duplicate_label_names"
	// SeriesLimit is a reason for discarding lines when we can't create a new stream
	// because the limit of active streams has been reached.
	SeriesLimit       Reason = "series_limit"
	QueryLimit        Reason = "query_limit"
	SamplesLimit      Reason = "samples_limit"
	ProfileSizeLimit  Reason = "profile_size_limit"
	SampleLabelsLimit Reason = "sample_labels_limit"

	SeriesLimitErrorMsg                = "" /* 188-byte string literal not displayed */
	MissingLabelsErrorMsg              = "error at least one label pair is required per profile"
	InvalidLabelsErrorMsg              = "invalid labels '%s' with error: %s"
	MaxLabelNamesPerSeriesErrorMsg     = "profile series '%s' has %d label names; limit %d"
	LabelNameTooLongErrorMsg           = "profile with labels '%s' has label name too long: '%s'"
	LabelValueTooLongErrorMsg          = "profile with labels '%s' has label value too long: '%s'"
	DuplicateLabelNamesErrorMsg        = "profile with labels '%s' has duplicate label name: '%s'"
	QueryTooLongErrorMsg               = "the query time range exceeds the limit (max_query_length, actual: %s, limit: %s)"
	ProfileTooBigErrorMsg              = "the profile with labels '%s' exceeds the size limit (max_profile_size_byte, actual: %d, limit: %d)"
	ProfileTooManySamplesErrorMsg      = "the profile with labels '%s' exceeds the samples count limit (max_profile_stacktrace_samples, actual: %d, limit: %d)"
	ProfileTooManySampleLabelsErrorMsg = "the profile with labels '%s' exceeds the sample labels limit (max_profile_stacktrace_sample_labels, actual: %d, limit: %d)"
)

Variables

View Source 
var (
	// DiscardedBytes is a metric of the total discarded bytes, by reason.
	DiscardedBytes = promauto.NewCounterVec(
		prometheus.CounterOpts{
			Namespace: "pyroscope",
			Name:      "discarded_bytes_total",
			Help:      "The total number of bytes that were discarded.",
		},
		[]string{ReasonLabel, "tenant"},
	)

	// DiscardedProfiles is a metric of the number of discarded profiles, by reason.
	DiscardedProfiles = promauto.NewCounterVec(
		prometheus.CounterOpts{
			Namespace: "pyroscope",
			Name:      "discarded_samples_total",
			Help:      "The total number of samples that were discarded.",
		},
		[]string{ReasonLabel, "tenant"},
	)
)

Functions

func SetDefaultLimitsForYAMLUnmarshalling 

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 TenantLimitsHandler 

func TenantLimitsHandler(defaultLimits Limits, tenantLimits TenantLimits) http.HandlerFunc

TenantLimitsHandler handles user limits.

func ValidateLabels 

func ValidateLabels(limits LabelValidationLimits, userID string, ls []*typesv1.LabelPair) error

ValidateLabels validates the labels of a profile.

func ValidateProfile 

func ValidateProfile(limits ProfileValidationLimits, userID string, prof *googlev1.Profile, uncompressedSize int, ls phlaremodel.Labels) error

Types

type Error 

type Error struct {
	Reason Reason
	// contains filtered or unexported fields
}

func NewErrorf 

func NewErrorf(reason Reason, msg string, args ...interface{}) *Error

func (*Error) Error 

func (e *Error) Error() string

type LabelValidationLimits 

type LabelValidationLimits interface {
	MaxLabelNameLength(userID string) int
	MaxLabelValueLength(userID string) int
	MaxLabelNamesPerSeries(userID string) int
}

type LimitError 

type LimitError string

LimitError are errors that do not comply with the limits specified.

func (LimitError) Error 

func (e LimitError) Error() string

type Limits 

type Limits struct {
	// Distributor enforced limits.
	IngestionRateMB        float64 `yaml:"ingestion_rate_mb" json:"ingestion_rate_mb"`
	IngestionBurstSizeMB   float64 `yaml:"ingestion_burst_size_mb" json:"ingestion_burst_size_mb"`
	MaxLabelNameLength     int     `yaml:"max_label_name_length" json:"max_label_name_length"`
	MaxLabelValueLength    int     `yaml:"max_label_value_length" json:"max_label_value_length"`
	MaxLabelNamesPerSeries int     `yaml:"max_label_names_per_series" json:"max_label_names_per_series"`

	MaxProfileSizeBytes              int `yaml:"max_profile_size_bytes" json:"max_profile_size_bytes"`
	MaxProfileStacktraceSamples      int `yaml:"max_profile_stacktrace_samples" json:"max_profile_stacktrace_samples"`
	MaxProfileStacktraceSampleLabels int `yaml:"max_profile_stacktrace_sample_labels" json:"max_profile_stacktrace_sample_labels"`
	MaxProfileStacktraceDepth        int `yaml:"max_profile_stacktrace_depth" json:"max_profile_stacktrace_depth"`
	MaxProfileSymbolValueLength      int `yaml:"max_profile_symbol_value_length" json:"max_profile_symbol_value_length"`

	// The tenant shard size determines the how many ingesters a particular
	// tenant will be sharded to. Needs to be specified on distributors for
	// correct distribution and on ingesters so that the local ingestion limit
	// can be calculated correctly.
	IngestionTenantShardSize int `yaml:"ingestion_tenant_shard_size" json:"ingestion_tenant_shard_size"`

	// Ingester enforced limits.
	MaxLocalSeriesPerTenant  int `yaml:"max_local_series_per_tenant" json:"max_local_series_per_tenant"`
	MaxGlobalSeriesPerTenant int `yaml:"max_global_series_per_tenant" json:"max_global_series_per_tenant"`

	// Querier enforced limits.
	MaxQueryLookback    model.Duration `yaml:"max_query_lookback" json:"max_query_lookback"`
	MaxQueryLength      model.Duration `yaml:"max_query_length" json:"max_query_length"`
	MaxQueryParallelism int            `yaml:"max_query_parallelism" json:"max_query_parallelism"`

	// Store-gateway.
	StoreGatewayTenantShardSize int `yaml:"store_gateway_tenant_shard_size" json:"store_gateway_tenant_shard_size"`

	// Query frontend.
	QuerySplitDuration model.Duration `yaml:"split_queries_by_interval" json:"split_queries_by_interval"`
}

Limits describe all the limits for tenants; can be used to describe global default limits via flags, or per-tenant limits via yaml config. NOTE: we use custom `model.Duration` instead of standard `time.Duration` because, to support tenant-friendly duration format (e.g: "1h30m45s") in JSON value.

func MockDefaultLimits 

func MockDefaultLimits() *Limits

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 

func (l *Limits) Validate() error

Validate validates that this limits config is valid.

type MockLimits 

type MockLimits struct {
	QuerySplitDurationValue     time.Duration
	MaxQueryParallelismValue    int
	MaxQueryLengthValue         time.Duration
	MaxQueryLookbackValue       time.Duration
	MaxLabelNameLengthValue     int
	MaxLabelValueLengthValue    int
	MaxLabelNamesPerSeriesValue int

	MaxProfileSizeBytesValue              int
	MaxProfileStacktraceSamplesValue      int
	MaxProfileStacktraceDepthValue        int
	MaxProfileStacktraceSampleLabelsValue int
	MaxProfileSymbolValueLengthValue      int
}

func (MockLimits) MaxLabelNameLength 

func (m MockLimits) MaxLabelNameLength(userID string) int

func (MockLimits) MaxLabelNamesPerSeries 

func (m MockLimits) MaxLabelNamesPerSeries(userID string) int

func (MockLimits) MaxLabelValueLength 

func (m MockLimits) MaxLabelValueLength(userID string) int

func (MockLimits) MaxProfileSizeBytes 

func (m MockLimits) MaxProfileSizeBytes(userID string) int

func (MockLimits) MaxProfileStacktraceDepth 

func (m MockLimits) MaxProfileStacktraceDepth(userID string) int

func (MockLimits) MaxProfileStacktraceSampleLabels 

func (m MockLimits) MaxProfileStacktraceSampleLabels(userID string) int

func (MockLimits) MaxProfileStacktraceSamples 

func (m MockLimits) MaxProfileStacktraceSamples(userID string) int

func (MockLimits) MaxProfileSymbolValueLength 

func (m MockLimits) MaxProfileSymbolValueLength(userID string) int

func (MockLimits) MaxQueryLength 

func (m MockLimits) MaxQueryLength(tenantID string) time.Duration

func (MockLimits) MaxQueryLookback 

func (m MockLimits) MaxQueryLookback(tenantID string) time.Duration

func (MockLimits) MaxQueryParallelism 

func (m MockLimits) MaxQueryParallelism(string) int

func (MockLimits) QuerySplitDuration 

func (m MockLimits) QuerySplitDuration(string) time.Duration

type Overrides 

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

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

func MockDefaultOverrides 

func MockDefaultOverrides() *Overrides

func MockOverrides 

func MockOverrides(customize func(defaults *Limits, tenantLimits map[string]*Limits)) *Overrides

func NewOverrides 

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

NewOverrides makes a new Overrides.

func (*Overrides) AllByTenantID 

func (o *Overrides) AllByTenantID() map[string]*Limits

func (*Overrides) DefaultLimits 

func (o *Overrides) DefaultLimits() *Limits

func (*Overrides) IngestionBurstSizeBytes 

func (o *Overrides) IngestionBurstSizeBytes(tenantID string) int

IngestionBurstSizeBytes returns the burst size for ingestion rate.

func (*Overrides) IngestionRateBytes 

func (o *Overrides) IngestionRateBytes(tenantID string) float64

IngestionRateBytes returns the limit on ingester rate (MBs per second).

func (*Overrides) IngestionTenantShardSize 

func (o *Overrides) IngestionTenantShardSize(tenantID string) int

IngestionTenantShardSize returns the ingesters shard size for a given user.

func (*Overrides) MaxGlobalSeriesPerTenant 

func (o *Overrides) MaxGlobalSeriesPerTenant(tenantID string) int

MaxGlobalSeriesPerTenant returns the maximum number of series a tenant is allowed to store across the cluster.

func (*Overrides) MaxLabelNameLength 

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

MaxLabelNameLength returns maximum length a label name can be.

func (*Overrides) MaxLabelNamesPerSeries 

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

MaxLabelNamesPerSeries returns maximum number of label/value pairs timeseries.

func (*Overrides) MaxLabelValueLength 

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

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

func (*Overrides) MaxLocalSeriesPerTenant 

func (o *Overrides) MaxLocalSeriesPerTenant(tenantID string) int

MaxLocalSeriesPerTenant returns the maximum number of series a tenant is allowed to store in a single ingester.

func (*Overrides) MaxProfileSizeBytes 

func (o *Overrides) MaxProfileSizeBytes(tenantID string) int

MaxProfileSizeBytes returns the maximum size of a profile in bytes.

func (*Overrides) MaxProfileStacktraceDepth 

func (o *Overrides) MaxProfileStacktraceDepth(tenantID string) int

MaxProfileStacktraceDepth returns the maximum depth of a profile stacktrace.

func (*Overrides) MaxProfileStacktraceSampleLabels 

func (o *Overrides) MaxProfileStacktraceSampleLabels(tenantID string) int

MaxProfileStacktraceSampleLabels returns the maximum number of labels in a profile sample.

func (*Overrides) MaxProfileStacktraceSamples 

func (o *Overrides) MaxProfileStacktraceSamples(tenantID string) int

MaxProfileStacktraceSamples returns the maximum number of samples in a profile.

func (*Overrides) MaxProfileSymbolValueLength 

func (o *Overrides) MaxProfileSymbolValueLength(tenantID string) int

MaxProfileSymbolValueLength returns the maximum length of a profile symbol value (labels, function name and filename, etc...).

func (*Overrides) MaxQueriersPerTenant 

func (o *Overrides) MaxQueriersPerTenant(tenant string) int

MaxQueriersPerTenant returns the limit to the number of queriers that can be used Shuffle sharding will be used to distribute queries across queriers. 0 means no limit. Currently disabled.

func (*Overrides) MaxQueryLength 

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

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

func (*Overrides) MaxQueryLookback 

func (o *Overrides) MaxQueryLookback(tenantID string) time.Duration

MaxQueryLookback returns the max lookback period of queries.

func (*Overrides) MaxQueryParallelism 

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

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

func (*Overrides) QuerySplitDuration 

func (o *Overrides) QuerySplitDuration(tenantID string) time.Duration

QuerySplitDuration returns the tenant specific split by interval applied in the query frontend.

func (*Overrides) StoreGatewayTenantShardSize 

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

StoreGatewayTenantShardSize returns the store-gateway shard size for a given user.

type OverwriteMarshalingStringMap 

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

OverwriteMarshalingStringMap will overwrite the src map when unmarshaling as opposed to merging.

func NewOverwriteMarshalingStringMap 

func NewOverwriteMarshalingStringMap(m map[string]string) OverwriteMarshalingStringMap

func (*OverwriteMarshalingStringMap) Map 

func (sm *OverwriteMarshalingStringMap) Map() map[string]string

func (OverwriteMarshalingStringMap) MarshalJSON 

func (sm OverwriteMarshalingStringMap) MarshalJSON() ([]byte, error)

MarshalJSON explicitly uses the the type receiver and not pointer receiver or it won't be called

func (OverwriteMarshalingStringMap) MarshalYAML 

func (sm OverwriteMarshalingStringMap) MarshalYAML() (interface{}, error)

MarshalYAML explicitly uses the the type receiver and not pointer receiver or it won't be called

func (*OverwriteMarshalingStringMap) UnmarshalJSON 

func (sm *OverwriteMarshalingStringMap) UnmarshalJSON(val []byte) error

func (*OverwriteMarshalingStringMap) UnmarshalYAML 

func (sm *OverwriteMarshalingStringMap) UnmarshalYAML(unmarshal func(interface{}) error) error

type ProfileValidationLimits 

type ProfileValidationLimits interface {
	MaxProfileSizeBytes(userID string) int
	MaxProfileStacktraceSamples(userID string) int
	MaxProfileStacktraceSampleLabels(userID string) int
	MaxProfileStacktraceDepth(userID string) int
	MaxProfileSymbolValueLength(userID string) int
}

type RangeRequestLimits 

type RangeRequestLimits interface {
	MaxQueryLength(tenantID string) time.Duration
	MaxQueryLookback(tenantID string) time.Duration
}

type Reason 

type Reason string

func ReasonOf 

func ReasonOf(err error) Reason

type TenantLimits 

type TenantLimits interface {
	// TenantLimits is a function that returns limits for given tenant, or
	// nil, if there are no tenant-specific limits.
	TenantLimits(tenantID string) *Limits
	// AllByTenantID gets a mapping of all tenant IDs and limits for that tenant
	AllByTenantID() map[string]*Limits
}

func NewMockTenantLimits 

func NewMockTenantLimits(limits map[string]*Limits) TenantLimits

NewMockTenantLimits creates a new mockTenantLimits that returns per-tenant limits based on the given map

type TenantLimitsResponse 

type TenantLimitsResponse struct {
	// Write path limits
	IngestionRate            float64 `json:"ingestion_rate"`
	IngestionBurstSize       int     `json:"ingestion_burst_size"`
	MaxGlobalSeriesPerTenant int     `json:"max_global_series_per_user"`
}

type ValidatedRangeRequest 

type ValidatedRangeRequest struct {
	model.Interval
	IsEmpty bool
}

func ValidateRangeRequest 

func ValidateRangeRequest(limits RangeRequestLimits, tenantIDs []string, req model.Interval, now model.Time) (ValidatedRangeRequest, error)

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