tree: 57d86d06910eb6cc89107356f4063752ec4b480a [path history] [tgz]
  1. .gitignore
  2. LICENSE
  3. README.md
  4. prober.go
  5. server.go
  6. status.go
vendor/github.com/xiang90/probing/README.md

Getting Started

Install the handler

We first need to serve the probing HTTP handler.

    http.HandleFunc("/health", probing.NewHandler())
    err := http.ListenAndServe(":12345", nil)
	if err != nil {
		log.Fatal("ListenAndServe: ", err)
	}

Start to probe

Now we can start to probe the endpoint.

    id := "example"
    probingInterval = 5 * time.Second
    url := "http://example.com:12345/health"
    p.AddHTTP(id, probingInterval, url)

	time.Sleep(13 * time.Second)
	status, err := p.Status(id)
 	fmt.Printf("Total Probing: %d, Total Loss: %d, Estimated RTT: %v, Estimated Clock Difference: %v\n",
		status.Total(), status.Loss(), status.SRTT(), status.ClockDiff())
	// Total Probing: 2, Total Loss: 0, Estimated RTT: 320.771µs, Estimated Clock Difference: -35.869µs

TODOs:

  • TCP probing
  • UDP probing
  • Gossip based probing
  • More accurate RTT estimation
  • More accurate Clock difference estimation
  • Use a clock interface rather than the real clock