問題文
A request passes from a frontend service to a product catalog service. The catalog service produces spans, but in the backend they appear as separate traces with their own root spans instead of children of the frontend span. Which part of the pipeline should be examined first?
選択肢
- Context propagation, because the remote context has to be extracted from the incoming request and injected into the local context.
- The sampler on the catalog service, because sampling detaches the remaining spans from the parent span.
- The exporter on the catalog service, because a misconfigured endpoint changes the parent identifier.
- The Resource of the catalog service, because a missing service name breaks the hierarchy.