Jaeger Exporter

The Jaeger Exporter creates the Prometheus metrics for the Service Performance Monitoring.

The exporter reuses the Jaeger Ingester logic to consume spans from a particular Kafka topic, but instead of writing them to a storage backend it creates the metrics calls_total and duration_milliseconds for the Service Performance Monitoring. To use these metrics the --prometheus.query.normalize-calls and --prometheus.query.normalize-duration flag must be set for Jaeger.

Installation

The Jaeger Exporter can be installed via Helm or Kustomize.

To install the exporter via Helm you can use the following commands:

helm repo add ricoberger https://ricoberger.github.io/helm-charts
helm repo update

helm install jaeger-exporter ricoberger/jaeger-exporter

To install the exporter via Kustomize you can use the following commands:

kubectl create namespace tracing
kustomize build github.com/ricoberger/jaeger-exporter/deploy/kustomize | kubectl apply -n tracing -f -

Configuration

The Jaeger Exporter can be configured via command line flags. The following flags are available:

--exporter.address string                  The address where the exporter is listen on. (default ":8080")
--exporter.deadlockInterval duration       Interval to check for deadlocks. If no messages gets processed in given time, exporter app will exit. Value of 0 disables deadlock check.
--exporter.parallelism int                 The number of messages to process in parallel. (default 1000)
--exporter.services string                 A comma serperated list of services for which the metrics should be generated (e.g. "service1,service2,service3"). If empty, the metrics are generated for all services.
--kafka.consumer.brokers string            The comma-separated list of kafka brokers. i.e. "127.0.0.1:9092,0.0.0:1234" (default "127.0.0.1:9092")
--kafka.consumer.client-id string          The Consumer Client ID that exporter will use. (default "jaeger-exporter")
--kafka.consumer.encoding string           The encoding of spans ("json", "protobuf", "zipkin-thrift") consumed from kafka. (default "protobuf")
--kafka.consumer.group-id string           The Consumer Group that exporter will be consuming on behalf of. (default "jaeger-exporter")
--kafka.consumer.protocol-version string   Kafka protocol version - must be supported by kafka server.
--kafka.consumer.rack-id string            Rack identifier for this client. This can be any string value which indicates where this client is located. It corresponds with the broker config broker.rack.
--kafka.consumer.topic string              The name of the kafka topic to consume from. (default "jaeger-spans")
--log.format string                        Set the output format of the logs. Must be "console" or "json". (default "console")
--log.level string                         Set the log level. Must be "debug", "info", "warn", "error", "fatal" or "panic". (default "info")
--version                                  Print version information.