Esempio n. 1
0
func (up UpstreamPool) pingUpstreams() {
	pingable := true
	for pingable {
		select {
		case <-up.shutdown:
			return
		case <-up.pinger.C:
			gotone := false
			for i, ups := range up.pool {
				if ups.Upstream.PingPath != "" {
					go up.pingUpstream(ups, i)
					gotone = true
				}
			}
			if !gotone {
				pingable = false
			}
		}
	}
	falcore.Warn("Stopping ping for %v", up.Name)
}
Esempio n. 2
0
func NewUpstream(host string, port int, forceHttp bool) *Upstream {
	u := new(Upstream)
	u.Host = host
	u.Port = port
	u.ForceHttp = forceHttp
	ips, err := net.LookupIP(host)
	var ip net.IP = nil
	for i := range ips {
		ip = ips[i].To4()
		if ip != nil {
			break
		}
	}
	if err == nil && ip != nil {
		u.tcpaddr = new(net.TCPAddr)
		u.tcpaddr.Port = port
		u.tcpaddr.IP = ip
	} else {
		falcore.Warn("Can't get IP addr for %v: %v", host, err)
	}
	u.Timeout = 60e9
	u.host = fmt.Sprintf("%v:%v", u.Host, u.Port)

	u.transport = new(http.Transport)
	u.transport.Dial = func(n, addr string) (c net.Conn, err os.Error) {
		falcore.Fine("Dialing connection to %v", u.tcpaddr)
		var ctcp *net.TCPConn
		ctcp, err = net.DialTCP("tcp4", nil, u.tcpaddr)
		if ctcp != nil {
			ctcp.SetTimeout(u.Timeout)
		}
		if err != nil {
			falcore.Error("Dial Failed: %v", err)
		}
		return ctcp, err
	}
	u.transport.MaxIdleConnsPerHost = 15
	return u
}