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1. HongZhaoHua commented on Sep 14, 2020

   

   HongZhaoHua

   on Sep 14, 2020

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   here is the code:

       Tracer tracer = Tracing.getTracer();
       TraceId traceId = TraceId.generateRandomId(RandomUtility.getRandom());
       SpanId spanId = SpanId.generateRandomId(RandomUtility.getRandom());
       TraceOptions traceOption = TraceOptions.builder().build();
       Tracestate traceState = Tracestate.builder().set("userId", "xxxxx").build();
       SpanContext spanContext = SpanContext.create(traceId, spanId, traceOption, traceState);
   
       // TODO I hope get a root span, but in fact, i just get a non root span
       Span span = tracer.spanBuilderWithRemoteParent("root", spanContext).startSpan();
   

   How do I build a root span with Tracestate?