Appdash is an application tracing system for Go, based on Google's Dapper and
Twitter's Zipkin.

Appdash allows you to trace the end-to-end handling of requests and operations
in your application (for perf and debugging). It displays timings and
application-specific metadata for each step, and it displays a tree and timeline
for each request and its children.

To use appdash, you must instrument your application with calls to an appdash
recorder. You can record any type of event or operation. Recorders and schemas
for HTTP (client and server) and SQL are provided, and you can write your own.