hotrod

command
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Published: Nov 13, 2018 License: Apache-2.0 Imports: 1 Imported by: 0

README

Hot R.O.D. - Rides on Demand

This is a demo application that consists of several microservices and illustrates the use of the OpenTracing API. It can be run standalone, but requires Jaeger backend to view the traces. A tutorial / walkthough is available:

Features

  • Discover architecture of the whole system via data-driven dependency diagram
  • View request timeline & errors, understand how the app works
  • Find sources of latency, lack of concurrency
  • Highly contextualized logging
  • Use baggage propagation to
    • Diagnose inter-request contention (queueing)
    • Attribute time spent in a service
  • Use open source libraries with OpenTracing integration to get vendor-neutral instrumentation for free

Running

Run Jaeger Backend

An all-in-one Jaeger backend is packaged as a Docker container with in-memory storage.

docker run \
  --rm \
  --name jaeger \
  -p6831:6831/udp \
  -p16686:16686 \
  jaegertracing/all-in-one:1.6

Jaeger UI can be accessed at http://localhost:16686.

Run HotROD from source
go get github.com/jaegertracing/jaeger
cd $GOPATH/src/github.com/jaegertracing/jaeger
make install
cd examples/hotrod
go run ./main.go all
Run HotROD from docker
docker run \
  --rm \
  --link jaeger \
  --env JAEGER_AGENT_HOST=jaeger \
  --env JAEGER_AGENT_PORT=6831 \
  -p8080-8083:8080-8083 \
  jaegertracing/example-hotrod:latest \
  all

Then open http://127.0.0.1:8080

Documentation

The Go Gopher

There is no documentation for this package.

Directories

Path Synopsis
pkg
log
services
driver/thrift-gen/driver
Package driver is generated code used to make or handle TChannel calls using Thrift.
Package driver is generated code used to make or handle TChannel calls using Thrift.
frontend/statik
Package statik contains static assets.
Package statik contains static assets.

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