leaky gorequests

main.go

package main

import (
	"fmt"
	"log"
	"os"
	"os/exec"
	"strings"

	"time"

	"github.com/parnurzeal/gorequest"
)

func testRequest() {
	gorequest.New().Get("http://www.google.com").Set("Connection", "close").End()
}

func main() {
	for {
		go testRequest()
		time.Sleep(1 * time.Second)
		fmt.Println("Request done, open files =", countOpenFiles())
	}
}

func countOpenFiles() int {
	out, err := exec.Command("/bin/sh", "-c", fmt.Sprintf("lsof -p %v", os.Getpid())).Output()
	if err != nil {
		log.Fatal(err)
	}
	lines := strings.Split(string(out), "\n")
	return len(lines) - 1
}

output.txt

Request done, open files = 15
Request done, open files = 17
Request done, open files = 19
Request done, open files = 21
Request done, open files = 23
Request done, open files = 25
Request done, open files = 27