pythonfastapiopen-telemetryjaeger

Open Telemetry not exporting to Jaeger

I have open telemetry exporting traces to Jaeger for many Node.js services, however with python, its not working:

opentelemetry-instrument \  
    --traces_exporter console,otlp \
    --metrics_exporter console \
    --service_name llama-indexer \
    --exporter_otlp_protocol http/protobuf \
    --exporter_otlp_endpoint http://localhost:4318/v1/traces \
    start_api

The traces log with no issue to the console, but do not show up at all in jaeger

I have the same endpoint for js traces, works just fine. Heres my docker container in case it helps
83bce0bb7a12 jaegertracing/all-in-one "/go/bin/all-in-one-…" About an hour ago Up About an hour 5775/udp, 5778/tcp, 14250/tcp, 0.0.0.0:4317-4318->4317-4318/tcp, 0.0.0.0:16686->16686/tcp, 6831-6832/udp, 14268/tcp jaeger

Is there any way to get better observability into whats going wrong with the exporter, or anything obvious im missing

I tried many different parameters, I tried directly sending traces to datadog (didn't work) I tried manually instrumenting the FastAPI.

I have also tried using GRPC exporter, and it works, but i need http.

Solution

  • The issue was with my --exporter_otlp_endpoint value. I used http://localhost:4318/v1/traces which was incorrect (although worked with grpc for some reason).

    Switching to:

    --exporter_otlp_endpoint http://localhost:4318 \

    solved the issue.