connect: resource temporarily unavailable about go-libvirt HOT 3 CLOSED

conn, err := net.DialTimeout("unix", ag.SockUrl, ag.ConnectTimeout*time.Second-time.Millisecond*100)

if err != nil {
	log.Printf("E! failed to dial libvirt: %s", err.Error())
	//retry

	time.Sleep(10 * time.Millisecond)

	conn, err = net.DialTimeout("unix", ag.SockUrl, ag.ConnectTimeout*time.Second-time.Millisecond*100)

	if err != nil {
		log.Printf("E! failed to retry dial libvirt: %s", err.Error())

		return
	}

}

defer conn.Close()