Jaeger client library for Erlang.

This is an extension library of passage.

Documentation

Starts Jaeger in the background:

$ docker run -d -p6831:6831/udp -p6832:6832/udp -p16686:16686 jaegertracing/all-in-one:latest

Starts Erlang Shell:

$ rebar3 shell

% Starts `example_tracer`
> Sampler = passage_sampler_all:new().
> ok = jaeger_passage:start_tracer(example_tracer, Sampler).

% Starts a root span.
> RootSpan = passage:start_span(example_root, [{tracer, example_tracer}]).

% Starts a child span.
> ChildSpan = passage:start_span(example_child, [{child_of, RootSpan}]).

% Finishes the spans
> passage:finish_span(ChildSpan).
> passage:finish_span(RootSpan).

Browses the tracing result:

$ firefox http://localhost:16686/

By default 'compact' jaeger.thrift over UDP reporter is used. However it is possible to select different reporter. Bellow is a configuration matrics for available options:

The HTTP version is beneficial if you don't have jaeger agents deployed or your spans are greater than max udp packet size (65Kb). Otherwise it is better to use default.

• OpenTracing
• Jaeger
• jaeger-client-go/README.md
• Jaeger Client Library
• Jaeger default ports