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This entry is part 2 of 2 in the series Tracing Systems with Zipkin and OpenTracing. Earlier posts include What is a Zipkin Trace?. This is the most recent post in the series. Last time we ran a small, three service pre-instrumented system that reported spans into Zipkin. In this article we’re going to take a look at how we instrumented that system using Zipkin’s free and open source libraries. This article assumes you have a version of NodeJS on your computer, a Zipkin instance running on port ...