[docs] GettingStarted.rst incorrect for Jaeger HTTP exporter

[marcalff]

In the documentation, in:
opentelemetry-cpp/docs/public/sdk/GettingStarted.rst
the section about exporters states:

// Jaeger HTTP exporter
opentelemetry::exporter::jaeger::JaegerExporterOptions opts;
opts.transport_format  = opentelemetry::exporter::jaeger::TransportFormat::kThriftHttp;
opts.endpoint = "localhost";
opts.server_port =  6831;
opts.headers = {{}}; // optional headers
auto jaeger_udp_exporter =
    std::unique_ptr<sdktrace::SpanExporter>(new opentelemetry::exporter::jaeger::JaegerExporter(opts));

Bug:

The exporter variable, jaeger_udp_exporter, is confusing ... probably meant to be jeager_http_exporter instead.

Possibly a bug:

The port number, 6831, is the same as for the Jaeger UDP exporter above, and look suspicious (copy and paste).
I could not get the example to work on 6831, but unsure if this is due to my install or to the port number.

Should the port be 14268 instead ?
This needs confirmation, I do not know this area well enough for a definitive answer.

Related:
https://www.jaegertracing.io/docs/1.32/deployment/

[esigo]

Hi @marcalff, thanks for reaching out to us. Regarding the port you may use the port you have configured your backend. 14268 should be the default port for http yes.
I'd suggest starting with our example, to be sure your code is working.