sarama

Documentation

Overview

Package sarama provides functions to trace the Shopify/sarama package. (https://github.com/Shopify/sarama)

The consumer's span will be created as a child of the producer's span.

Context propagation only works on Kafka versions higher than 0.11.0.0 which supports record headers. (https://archive.apache.org/dist/kafka/0.11.0.0/RELEASE_NOTES.html)

Based on: https://github.com/DataDog/dd-trace-go/tree/v1/contrib/Shopify/sarama

Index

• func WrapAsyncProducer(saramaConfig *sarama.Config, p sarama.AsyncProducer, opts ...Option) sarama.AsyncProducer
• func WrapConsumer(c sarama.Consumer, opts ...Option) sarama.Consumer
• func WrapConsumerGroupHandler(handler sarama.ConsumerGroupHandler, opts ...Option) sarama.ConsumerGroupHandler
• func WrapPartitionConsumer(pc sarama.PartitionConsumer, opts ...Option) sarama.PartitionConsumer
• func WrapSyncProducer(saramaConfig *sarama.Config, producer sarama.SyncProducer, opts ...Option) sarama.SyncProducer
• type ConsumerMessageCarrier
  • func NewConsumerMessageCarrier(msg *sarama.ConsumerMessage) ConsumerMessageCarrier
  • func (c ConsumerMessageCarrier) Get(key string) string
  • func (c ConsumerMessageCarrier) Set(key, val string)
• type Option
  • func WithPropagators(propagators otelpropagation.Propagators) Option
  • func WithTraceProvider(provider trace.Provider) Option
• type ProducerMessageCarrier
  • func NewProducerMessageCarrier(msg *sarama.ProducerMessage) ProducerMessageCarrier
  • func (c ProducerMessageCarrier) Get(key string) string
  • func (c ProducerMessageCarrier) Set(key, val string)

Functions

func WrapAsyncProducer

func WrapAsyncProducer(saramaConfig *sarama.Config, p sarama.AsyncProducer, opts ...Option) sarama.AsyncProducer

WrapAsyncProducer wraps a sarama.AsyncProducer so that all produced messages are traced. It requires the underlying sarama Config so we can know whether or not successes will be returned.

If `Return.Successes` is false, there is no way to know partition and offset of the message.

func WrapConsumer

func WrapConsumer(c sarama.Consumer, opts ...Option) sarama.Consumer

WrapConsumer wraps a sarama.Consumer wrapping any PartitionConsumer created via Consumer.ConsumePartition.

func WrapConsumerGroupHandler

func WrapConsumerGroupHandler(handler sarama.ConsumerGroupHandler, opts ...Option) sarama.ConsumerGroupHandler

WrapConsumerGroupHandler wraps a sarama.ConsumerGroupHandler causing each received message to be traced.

func WrapPartitionConsumer

func WrapPartitionConsumer(pc sarama.PartitionConsumer, opts ...Option) sarama.PartitionConsumer

WrapPartitionConsumer wraps a sarama.PartitionConsumer causing each received message to be traced.

func WrapSyncProducer

func WrapSyncProducer(saramaConfig *sarama.Config, producer sarama.SyncProducer, opts ...Option) sarama.SyncProducer

WrapSyncProducer wraps a sarama.SyncProducer so that all produced messages are traced.

Types

type ConsumerMessageCarrier

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

ConsumerMessageCarrier injects and extracts traces from a sarama.ConsumerMessage.

func NewConsumerMessageCarrier

func NewConsumerMessageCarrier(msg *sarama.ConsumerMessage) ConsumerMessageCarrier

NewConsumerMessageCarrier creates a new ConsumerMessageCarrier.

func (ConsumerMessageCarrier) Get

func (c ConsumerMessageCarrier) Get(key string) string

Get retrieves a single value for a given key.

func (ConsumerMessageCarrier) Set

func (c ConsumerMessageCarrier) Set(key, val string)

Set sets a header.

type Option

type Option func(*config)

Option specifies instrumentation configuration options.

func WithPropagators

func WithPropagators(propagators otelpropagation.Propagators) Option

WithPropagators specifies propagators to use for extracting information from the HTTP requests. If none are specified, global ones will be used.

func WithTraceProvider

func WithTraceProvider(provider trace.Provider) Option

WithTraceProvider specifies a trace provider to use for creating a tracer for spans. If none is specified, the global provider is used.

type ProducerMessageCarrier

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

ProducerMessageCarrier injects and extracts traces from a sarama.ProducerMessage.

func NewProducerMessageCarrier

func NewProducerMessageCarrier(msg *sarama.ProducerMessage) ProducerMessageCarrier

NewProducerMessageCarrier creates a new ProducerMessageCarrier.

func (ProducerMessageCarrier) Get

func (c ProducerMessageCarrier) Get(key string) string

Get retrieves a single value for a given key.

func (ProducerMessageCarrier) Set

func (c ProducerMessageCarrier) Set(key, val string)

Set sets a header.