Only root span gets AppD attributes set#2247
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breedx-splk merged 4 commits intosignalfx:mainfrom Mar 25, 2025
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| if (ctx.getTierId() != null) { | ||
| span.setAttribute(APPD_ATTR_TIER, ctx.getTierId()); | ||
| // Set attributes only for the root span | ||
| if (span.getParentSpanContext() == null) { |
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I suspect this is not what you really want. Instead of the root span you want the local root span, the first span in the trace for this service. Secondly can span.getParentSpanContext() be null at all? I'd guess that it would return an invalid span context (trace and span id are all zeros) instead. For ideas see https://github.com/open-telemetry/opentelemetry-java-instrumentation/blob/8b7e4f2bedc08cdcda2629b2b486bc9b8fd40851/instrumentation-api/src/main/java/io/opentelemetry/instrumentation/api/instrumenter/LocalRootSpan.java#L49
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Great suggestion. Thanks!
laurit
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As mentioned in signalfx/gdi-specification#338, 4 AppD context headers should be transferred into corresponding span attributes only for the root span.
Related to #2198