How can I change Service Name?

[tarek-sater-pf]

Hi

I'm receiving logs with OTLP but service_name = <function_name>. It seems to be hardcoded to be the Lambda function name.

I tried setting OTEL_SERVICE_NAME and OTEL_RESOURCE_ATTRIBUTES and manual instrumentation via ATTR_SERVICE_NAME, but still I only get the function name.

Is there any way to set it?

[tylerbenson]

I don't think it's consistent between languages. Which language?

Here's an example of how this is implemented for Nodejs: https://github.com/open-telemetry/opentelemetry-lambda/blob/main/nodejs/packages/layer/scripts/otel-handler#L7

[tarek-sater-pf]

Nodejs. It didnt work when I set OTEL_RESOURCE_ATTRIBUTES

[tarek-sater-pf]

To be clear, it doesn't work for telemetryapi receiver

[CaptainPickles89]

I was having this issue and found that you can use the resource processor which is available within the collector layer to set this

processors:
  resource/resource_override:
    attributes:
      - key: service.name
        value: MyAppName
        action: upsert

This now has my telemetry coming through with the value I want it to be instead of the name of the Lambda I am using

[serkan-ozal]

Hi @tarek-sater-pf,

That issue is fixed by this PR: #1852

And if you try with the latest Lambda collector layer (https://github.com/open-telemetry/opentelemetry-lambda/releases/tag/layer-collector%2F0.16.0), it should be fixed.