prometheusexporter doesnt export target_info

[IvanZenger]

With prometheusexporter there is no target_info exported.

In the receiving spans (OTLP), export these to the spanmetrics Connector and then send them to prometheusexporter.
Note: target_info is exported with prometheusremotewriteexport.

And Second Question: Is there an option to drop label of target_info in prometheusremotewriteexport before they get exported?

This is my config:

exporters:
  otlp:
    endpoint: localhost:5000
    tls:
      insecure: true
  prometheus:
    endpoint: "localhost:5001"
  logging:
    verbosity: detailed
receivers:
  otlp:
    protocols:
      grpc:
        endpoint: 0.0.0.0:5002
      http:
        endpoint: 0.0.0.0:5003
connectors:
  spanmetrics:
service:
  telemetry:
    logs:
      level: debug
  pipelines:
    traces:
      receivers:
        - otlp
      exporters:
        - spanmetrics
        - otlp
    metrics:
      receivers:
        - spanmetrics
      exporters:
        - prometheus

Thanks

[IvanZenger]

@mar4uk, @dmitryax, @atoulme Could you help? sorry

[shubham-cmyk]

@IvanZenger
I have have a question as per your setup were you able to produce the metrics on the prometheus. I am trying same for my setup I have collected traces and tried to convert it to metrics using spanmetrics connector not able to do so

[mar4uk]

Sorry for the late response, completely overlooked this question :(

to generate target_info prometheusexporter requires service.name, service.instance.id resource attributes. If any of them is missing target_info will not be generated.
It is happening here inside resourceSignature function

And Second Question: Is there an option to drop label of target_info in prometheusremotewriteexport before they get exported?

I don't think it is possible. target_info is generated based on resource attributes. So the only way to remove the label from target_info is to remove the resource attribute from metrics data points