Weave trimmed troubleshooting fat, cut API response time from seconds to milliseconds with Jaeger.

In this article we will look at the agent-like instrumentation tool T-Trace. The tool provides non-intrusive instrumentation capabilities for applications running on GraalVM. We will instrument a simple NodeJS application by using T-Trace and OpenTracing API with Jaeger NodeJS tracer.

I will get straight to the point, Jaeger at the moment only visualizes collected data from instrumented applications. It does not perform any post-processing (except service dependency diagram) or any calculations to derive other interesting metrics or features from traces it collects. This is a pity because traces contain the richest information from all telemetry signals combined!