distributor

package
v1.8.0 Latest Latest
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 Go to latest Published: Mar 25, 2021 License: Apache-2.0 Imports: 50 Imported by: 22

Documentation

Index

Constants

This section is empty.

Variables

View Source 
var (
	ErrInvalidLengthHaTracker = fmt.Errorf("proto: negative length found during unmarshaling")
	ErrIntOverflowHaTracker   = fmt.Errorf("proto: integer overflow")
)

Functions

func GetReplicaDescCodec added in v0.7.0 

func GetReplicaDescCodec() codec.Proto

func NewPool added in v1.1.0 

func NewPool(cfg PoolConfig, ring ring.ReadRing, factory ring_client.PoolFactory, logger log.Logger) *ring_client.Pool

func ProtoReplicaDescFactory 

func ProtoReplicaDescFactory() proto.Message

ProtoReplicaDescFactory makes new InstanceDescs

Types

type Config 

type Config struct {
	PoolConfig PoolConfig `yaml:"pool"`

	HATrackerConfig HATrackerConfig `yaml:"ha_tracker"`

	MaxRecvMsgSize  int           `yaml:"max_recv_msg_size"`
	RemoteTimeout   time.Duration `yaml:"remote_timeout"`
	ExtraQueryDelay time.Duration `yaml:"extra_queue_delay"`

	ShardingStrategy string `yaml:"sharding_strategy"`
	ShardByAllLabels bool   `yaml:"shard_by_all_labels"`
	ExtendWrites     bool   `yaml:"extend_writes"`

	// Distributors ring
	DistributorRing RingConfig `yaml:"ring"`

	// for testing and for extending the ingester by adding calls to the client
	IngesterClientFactory ring_client.PoolFactory `yaml:"-"`

	// when true the distributor does not validate the label name, Cortex doesn't directly use
	// this (and should never use it) but this feature is used by other projects built on top of it
	SkipLabelNameValidation bool `yaml:"-"`

	// This config is dynamically injected because defined in the querier config.
	ShuffleShardingLookbackPeriod time.Duration `yaml:"-"`
}

Config contains the configuration required to create a Distributor

func (*Config) RegisterFlags 

func (cfg *Config) RegisterFlags(f *flag.FlagSet)

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

func (*Config) Validate added in v0.4.0 

func (cfg *Config) Validate(limits validation.Limits) error

Validate config and returns error on failure

type Distributor 

type Distributor struct {
	services.Service

	// For handling HA replicas.
	HATracker *haTracker
	// contains filtered or unexported fields
}

Distributor is a storage.SampleAppender and a client.Querier which forwards appends and queries to individual ingesters.

func New 

func New(cfg Config, clientConfig ingester_client.Config, limits *validation.Overrides, ingestersRing ring.ReadRing, canJoinDistributorsRing bool, reg prometheus.Registerer, log log.Logger) (*Distributor, error)

New constructs a new Distributor

func (*Distributor) AllUserStats 

func (d *Distributor) AllUserStats(ctx context.Context) ([]UserIDStats, error)

AllUserStats returns statistics about all users. Note it does not divide by the ReplicationFactor like UserStats()

func (*Distributor) AllUserStatsHandler 

func (d *Distributor) AllUserStatsHandler(w http.ResponseWriter, r *http.Request)

AllUserStatsHandler shows stats for all users.

func (*Distributor) ForReplicationSet added in v1.5.0 

func (d *Distributor) ForReplicationSet(ctx context.Context, replicationSet ring.ReplicationSet, f func(context.Context, ingester_client.IngesterClient) (interface{}, error)) ([]interface{}, error)

ForReplicationSet runs f, in parallel, for all ingesters in the input replication set.

func (*Distributor) GetIngestersForMetadata added in v1.5.0 

func (d *Distributor) GetIngestersForMetadata(ctx context.Context) (ring.ReplicationSet, error)

GetIngestersForMetadata returns a replication set including all ingesters that should be queried to fetch metadata (eg. label names/values or series).

func (*Distributor) GetIngestersForQuery added in v1.5.0 

func (d *Distributor) GetIngestersForQuery(ctx context.Context, matchers ...*labels.Matcher) (ring.ReplicationSet, error)

GetIngestersForQuery returns a replication set including all ingesters that should be queried to fetch series matching input label matchers.

func (*Distributor) LabelNames 

func (d *Distributor) LabelNames(ctx context.Context, from, to model.Time) ([]string, error)

LabelNames returns all of the label names.

func (*Distributor) LabelValuesForLabelName 

func (d *Distributor) LabelValuesForLabelName(ctx context.Context, from, to model.Time, labelName model.LabelName, matchers ...*labels.Matcher) ([]string, error)

LabelValuesForLabelName returns all of the label values that are associated with a given label name.

func (*Distributor) MetricsForLabelMatchers 

func (d *Distributor) MetricsForLabelMatchers(ctx context.Context, from, through model.Time, matchers ...*labels.Matcher) ([]metric.Metric, error)

MetricsForLabelMatchers gets the metrics that match said matchers

func (*Distributor) MetricsMetadata added in v1.1.0 

func (d *Distributor) MetricsMetadata(ctx context.Context) ([]scrape.MetricMetadata, error)

MetricsMetadata returns all metric metadata of a user.

func (*Distributor) Push 

func (d *Distributor) Push(ctx context.Context, req *ingester_client.WriteRequest) (*ingester_client.WriteResponse, error)

Push implements client.IngesterServer

func (*Distributor) Query 

func (d *Distributor) Query(ctx context.Context, from, to model.Time, matchers ...*labels.Matcher) (model.Matrix, error)

Query multiple ingesters and returns a Matrix of samples.

func (*Distributor) QueryStream 

func (d *Distributor) QueryStream(ctx context.Context, from, to model.Time, matchers ...*labels.Matcher) (*ingester_client.QueryStreamResponse, error)

QueryStream multiple ingesters via the streaming interface and returns big ol' set of chunks.

func (*Distributor) UserStats 

func (d *Distributor) UserStats(ctx context.Context) (*UserStats, error)

UserStats returns statistics about the current user.

func (*Distributor) UserStatsHandler 

func (d *Distributor) UserStatsHandler(w http.ResponseWriter, r *http.Request)

UserStatsHandler handles user stats to the Distributor.

type HATrackerConfig 

type HATrackerConfig struct {
	EnableHATracker bool `yaml:"enable_ha_tracker"`
	// We should only update the timestamp if the difference
	// between the stored timestamp and the time we received a sample at
	// is more than this duration.
	UpdateTimeout          time.Duration `yaml:"ha_tracker_update_timeout"`
	UpdateTimeoutJitterMax time.Duration `yaml:"ha_tracker_update_timeout_jitter_max"`
	// We should only failover to accepting samples from a replica
	// other than the replica written in the KVStore if the difference
	// between the stored timestamp and the time we received a sample is
	// more than this duration
	FailoverTimeout time.Duration `yaml:"ha_tracker_failover_timeout"`

	KVStore kv.Config `` /* 190-byte string literal not displayed */
}

HATrackerConfig contains the configuration require to create a HA Tracker.

func (*HATrackerConfig) RegisterFlags 

func (cfg *HATrackerConfig) RegisterFlags(f *flag.FlagSet)

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

func (*HATrackerConfig) Validate added in v0.4.0 

func (cfg *HATrackerConfig) Validate() error

Validate config and returns error on failure

type PoolConfig added in v1.1.0 

type PoolConfig struct {
	ClientCleanupPeriod  time.Duration `yaml:"client_cleanup_period"`
	HealthCheckIngesters bool          `yaml:"health_check_ingesters"`
	RemoteTimeout        time.Duration `yaml:"-"`
}

PoolConfig is config for creating a Pool.

func (*PoolConfig) RegisterFlags added in v1.1.0 

func (cfg *PoolConfig) RegisterFlags(f *flag.FlagSet)

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

type ReadLifecycler added in v0.6.0 

type ReadLifecycler interface {
	HealthyInstancesCount() int
}

ReadLifecycler represents the read interface to the lifecycler.

type ReplicaDesc 

type ReplicaDesc struct {
	Replica    string `protobuf:"bytes,1,opt,name=replica,proto3" json:"replica,omitempty"`
	ReceivedAt int64  `protobuf:"varint,2,opt,name=received_at,json=receivedAt,proto3" json:"received_at,omitempty"`
	// Unix timestamp in millseconds when this entry was marked for deletion.
	// Reason for doing marking first, and delete later, is to make sure that distributors
	// watching the prefix will receive notification on "marking" -- at which point they can
	// already remove entry from memory. Actual deletion from KV store does *not* trigger
	// "watch" notification with a key for all KV stores.
	DeletedAt int64 `protobuf:"varint,3,opt,name=deleted_at,json=deletedAt,proto3" json:"deleted_at,omitempty"`
}

func NewReplicaDesc 

func NewReplicaDesc() *ReplicaDesc

NewReplicaDesc returns an empty *distributor.ReplicaDesc.

func (*ReplicaDesc) Descriptor 

func (*ReplicaDesc) Descriptor() ([]byte, []int)

func (*ReplicaDesc) Equal 

func (this *ReplicaDesc) Equal(that interface{}) bool

func (*ReplicaDesc) GetDeletedAt added in v1.8.0 

func (m *ReplicaDesc) GetDeletedAt() int64

func (*ReplicaDesc) GetReceivedAt 

func (m *ReplicaDesc) GetReceivedAt() int64

func (*ReplicaDesc) GetReplica 

func (m *ReplicaDesc) GetReplica() string

func (*ReplicaDesc) GoString 

func (this *ReplicaDesc) GoString() string

func (*ReplicaDesc) Marshal 

func (m *ReplicaDesc) Marshal() (dAtA []byte, err error)

func (*ReplicaDesc) MarshalTo 

func (m *ReplicaDesc) MarshalTo(dAtA []byte) (int, error)

func (*ReplicaDesc) MarshalToSizedBuffer added in v0.7.0 

func (m *ReplicaDesc) MarshalToSizedBuffer(dAtA []byte) (int, error)

func (*ReplicaDesc) ProtoMessage 

func (*ReplicaDesc) ProtoMessage()

func (*ReplicaDesc) Reset 

func (m *ReplicaDesc) Reset()

func (*ReplicaDesc) Size 

func (m *ReplicaDesc) Size() (n int)

func (*ReplicaDesc) String 

func (this *ReplicaDesc) String() string

func (*ReplicaDesc) Unmarshal 

func (m *ReplicaDesc) Unmarshal(dAtA []byte) error

func (*ReplicaDesc) XXX_DiscardUnknown 

func (m *ReplicaDesc) XXX_DiscardUnknown()

func (*ReplicaDesc) XXX_Marshal 

func (m *ReplicaDesc) XXX_Marshal(b []byte, deterministic bool) ([]byte, error)

func (*ReplicaDesc) XXX_Merge 

func (m *ReplicaDesc) XXX_Merge(src proto.Message)

func (*ReplicaDesc) XXX_Size 

func (m *ReplicaDesc) XXX_Size() int

func (*ReplicaDesc) XXX_Unmarshal 

func (m *ReplicaDesc) XXX_Unmarshal(b []byte) error

type RingConfig added in v0.6.0 

type RingConfig struct {
	KVStore          kv.Config     `yaml:"kvstore"`
	HeartbeatPeriod  time.Duration `yaml:"heartbeat_period"`
	HeartbeatTimeout time.Duration `yaml:"heartbeat_timeout"`

	// Instance details
	InstanceID             string   `yaml:"instance_id" doc:"hidden"`
	InstanceInterfaceNames []string `yaml:"instance_interface_names"`
	InstancePort           int      `yaml:"instance_port" doc:"hidden"`
	InstanceAddr           string   `yaml:"instance_addr" doc:"hidden"`

	// Injected internally
	ListenPort int `yaml:"-"`
}

RingConfig masks the ring lifecycler config which contains many options not really required by the distributors ring. This config is used to strip down the config to the minimum, and avoid confusion to the user.

func (*RingConfig) RegisterFlags added in v0.6.0 

func (cfg *RingConfig) RegisterFlags(f *flag.FlagSet)

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

func (*RingConfig) ToLifecyclerConfig added in v0.6.0 

func (cfg *RingConfig) ToLifecyclerConfig() ring.LifecyclerConfig

ToLifecyclerConfig returns a LifecyclerConfig based on the distributor ring config.

type UserIDStats 

type UserIDStats struct {
	UserID string `json:"userID"`
	UserStats
}

UserIDStats models ingestion statistics for one user, including the user ID

type UserStats 

type UserStats struct {
	IngestionRate     float64 `json:"ingestionRate"`
	NumSeries         uint64  `json:"numSeries"`
	APIIngestionRate  float64 `json:"APIIngestionRate"`
	RuleIngestionRate float64 `json:"RuleIngestionRate"`
}

UserStats models ingestion statistics for one user.

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