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有時,您不想創(chuàng)建一個新跨度,但想繼續(xù)一個跨度。這種情況的示例如下:
要繼續(xù)跨度,可以使用brave.Tracer
,如以下示例所示:
// let's assume that we're in a thread Y and we've received // the `initialSpan` from thread X Span continuedSpan = this.tracer.toSpan(newSpan.context()); try { // ... // You can tag a span continuedSpan.tag("taxValue", taxValue); // ... // You can log an event on a span continuedSpan.annotate("taxCalculated"); } finally { // Once done remember to flush the span. That means that // it will get reported but the span itself is not yet finished continuedSpan.flush(); }
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