agent

command
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Published: May 16, 2017 License: MIT Imports: 6 Imported by: 0

README

Jaeger Agent

jaeger-agent is a daemon program that runs on every host and receives tracing information submitted by applications via Jaeger client libraries.

Structure

  • Agent
    • processor as ThriftProcessor
      • server as TBufferedServer
        • Thrift UDP Transport
      • reporter as TCollectorReporter
    • sampling server
      • sampling manager as sampling.TCollectorProxy
UDP Server

Listens on UDP transport, reads data as []byte and forwards to processor over channel. Processor has N workers that read from the channel, convert to thrift-generated object model, and pass on to the Reporter. TCollectorReporter submits the spans to remote tcollector service.

Sampling Server

An HTTP server handling request in the form

http://localhost:port/sampling?service=xxxx`

Delegates to sampling.Manager to get the sampling strategy. sampling.TCollectorProxy implements sampling.Manager by querying remote tcollector service. Then the server converts thrift response from sampling manager into JSON and responds to clients.

Documentation

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