"service.name" not picked up by Jaeger exporter

[indexKevinBoak]

Describe the bug

• Using io.opentelemetry.sdk.autoconfigure.AutoConfiguredOpenTelemetrySdk.
• "OTEL_SERVICE_NAME" is set as an environment variable (along with many others)
• Traces from the application are properly being exported to jaeger, but the service.name is showing up as "unknown_service:java"

What did you expect to see?
I expected the service.name to match what was set in the environment variable

What version and what artifacts are you using?
Version 1.31.0 for

[jack-berg]

This should not be the case and I'm unable to reproduce this behavior myself. Can you create a small sample app reproducing the behavior?

[indexKevinBoak]

I know it shouldn't be the case.

All of the other variables are being set properly from the environment. I have tried to set the service name via the OTEL_SERVICE_NAME, as well as with OTEL_RESOURCE_ATTRIBUTES, as well as setting System.setProperty("otel.service.name")...

No matter what I do, the jaeger traces just say "unknown_service:java"

Mainly I'm just wondering if there is something I'm not seeing. I've been scouring the github repository for like 2 days, and everything I see leads me to think this should be working.

Env variables set in the image:

export OTEL_TRACES_EXPORTER="jaeger"
export OTEL_EXPORTER_JAEGER_ENDPOINT="http://jaeger-collector.jaeger:14250"
export OTEL_PROPAGATORS="jaeger"
export OTEL_TRACES_SAMPLER="parentbased_traceidratio"
export OTEL_TRACES_SAMPLER_ARG="1"
export OTEL_METRICS_EXPORTER="none"
export OTEL_LOGS_EXPORTER="none"
export OTEL_SERVICE_NAME="my-service"
export OTEL_RESOURCE_ATTRIBUTES="service.name=my-service"

In the code:

try {
      otelsdk = AutoConfiguredOpenTelemetrySdk
        .initialize()
        .getOpenTelemetrySdk()
      tracer = otelsdk.getTracer("my-tracer")
      span = tracer.spanBuilder(s"my-span").startSpan()
    } catch {
      case e: Throwable => {
        logError(s"failed to initialize open-telemetry: ${e.getMessage}")
        throw e
      }
    }

I then proceed to create custom spans, and they are properly exported... but for some ungodly reason, the "service.name" is not being recognized by the jaeger exporter.

[jack-berg]

Can you try printing out the string representation of OpenTelemetrySdk? E.g. System.out.println(otelSdk).

Should yield something like this, which tells which configuration is being picked up:

OpenTelemetrySdk{tracerProvider=SdkTracerProvider{clock=SystemClock{}, idGenerator=RandomIdGenerator{}, resource=Resource{schemaUrl=null, attributes={animal="cat", cat="meow", color="blue", service.name="test", telemetry.sdk.language="java", telemetry.sdk.name="opentelemetry", telemetry.sdk.version="1.32.0-SNAPSHOT"}}, spanLimitsSupplier=SpanLimitsValue{maxNumberOfAttributes=2, maxNumberOfEvents=128, maxNumberOfLinks=128, maxNumberOfAttributesPerEvent=128, maxNumberOfAttributesPerLink=128, maxAttributeValueLength=2147483647}, sampler=ParentBased{root:AlwaysOnSampler,remoteParentSampled:AlwaysOnSampler,remoteParentNotSampled:AlwaysOffSampler,localParentSampled:AlwaysOnSampler,localParentNotSampled:AlwaysOffSampler}, spanProcessor=MultiSpanProcessor{spanProcessorsStart=[io.opentelemetry.sdk.autoconfigure.provider.TestTracerProviderConfigurer$1@4fbbfea6], spanProcessorsEnd=[BatchSpanProcessor{spanExporter=io.opentelemetry.sdk.autoconfigure.provider.SpanExporterCustomizer$1@1bf8ea44, scheduleDelayNanos=5000000000, maxExportBatchSize=512, exporterTimeoutNanos=30000000000}], spanProcessorsAll=[BatchSpanProcessor{spanExporter=io.opentelemetry.sdk.autoconfigure.provider.SpanExporterCustomizer$1@1bf8ea44, scheduleDelayNanos=5000000000, maxExportBatchSize=512, exporterTimeoutNanos=30000000000}, io.opentelemetry.sdk.autoconfigure.provider.TestTracerProviderConfigurer$1@4fbbfea6]}}, meterProvider=SdkMeterProvider{clock=SystemClock{}, resource=Resource{schemaUrl=null, attributes={animal="cat", cat="meow", color="blue", service.name="test", telemetry.sdk.language="java", telemetry.sdk.name="opentelemetry", telemetry.sdk.version="1.32.0-SNAPSHOT"}}, metricReaders=[PeriodicMetricReader{exporter=io.opentelemetry.sdk.autoconfigure.provider.MetricCustomizer$1@4a6ac443, intervalNanos=60000000000}], metricProducers=[], views=[RegisteredView{instrumentSelector=InstrumentSelector{instrumentName=my-metric}, view=View{aggregation=DefaultAggregation, attributesProcessor=AttributeKeyFilteringProcessor{nameFilter=io.opentelemetry.sdk.autoconfigure.provider.MetricCustomizer$$Lambda$794/0x00000008005d9df8@5ab45d66}, cardinalityLimit=2000}}]}, loggerProvider=SdkLoggerProvider{clock=SystemClock{}, resource=Resource{schemaUrl=null, attributes={animal="cat", cat="meow", color="blue", service.name="test", telemetry.sdk.language="java", telemetry.sdk.name="opentelemetry", telemetry.sdk.version="1.32.0-SNAPSHOT"}}, logLimits=LogLimits{maxNumberOfAttributes=128, maxAttributeValueLength=2147483647}, logRecordProcessor=BatchLogRecordProcessor{logRecordExporter=io.opentelemetry.sdk.autoconfigure.provider.LogRecordExporterCustomizer$1@113a7d12, scheduleDelayNanos=60000000000, maxExportBatchSize=512, exporterTimeoutNanos=30000000000}}, propagators=DefaultContextPropagators{textMapPropagator=MultiTextMapPropagator{textMapPropagators=[W3CTraceContextPropagator, W3CBaggagePropagator, B3Propagator{b3PropagatorInjector=B3PropagatorInjectorSingleHeader}, B3Propagator{b3PropagatorInjector=B3PropagatorInjectorMultipleHeaders}, JaegerPropagator, OtTracePropagator, io.opentelemetry.sdk.autoconfigure.provider.TestConfigurablePropagatorProvider$1@173e4b75]}}}

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