medium10 pts · first answer countsopentelemetryobservability

Traces break between services

Traces in your backend show service A and service B as separate traces, never one request path, even though A calls B over HTTP. Both are instrumented. What is the most likely cause?

A.Service B is written in a different language than A, and traces cannot cross languages.B.Sampling is set to 100 percent, which makes the tracing backend split long traces into separate pieces.C.The services write logs in JSON instead of plain text, so their spans cannot be joined.D.The trace context header (W3C traceparent) is not propagated, for example a proxy drops it.

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Traces break between services

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