Пример #1
0
func openSyncConn(target string, passwd string) (net.Conn, <-chan int64) {
	c := openNetConn(target, passwd)
	if _, err := c.Write(redis.MustEncodeToBytes(redis.NewCommand("sync"))); err != nil {
		log.PanicError(errors.Trace(err), "write sync command failed")
	}
	return c, waitRdbDump(c)
}
Пример #2
0
func sendPSyncFullsync(br *bufio.Reader, bw *bufio.Writer) (string, int64, <-chan int64) {
	cmd := redis.NewCommand("psync", "?", -1)
	if err := redis.Encode(bw, cmd, true); err != nil {
		log.PanicError(err, "write psync command failed, fullsync")
	}
	r, err := redis.Decode(br)
	if err != nil {
		log.PanicError(err, "invalid psync response, fullsync")
	}
	if e, ok := r.(*redis.Error); ok {
		log.Panicf("invalid psync response, fullsync, %s", e.Value)
	}
	x, err := redis.AsString(r, nil)
	if err != nil {
		log.PanicError(err, "invalid psync response, fullsync")
	}
	xx := strings.Split(x, " ")
	if len(xx) != 3 || strings.ToLower(xx[0]) != "fullresync" {
		log.Panicf("invalid psync response = '%s', should be fullsync", x)
	}
	v, err := strconv.ParseInt(xx[2], 10, 64)
	if err != nil {
		log.PanicError(err, "parse psync offset failed")
	}
	runid, offset := xx[1], v-1
	return runid, offset, waitRdbDump(br)
}
Пример #3
0
func authPassword(c net.Conn, passwd string) {
	if passwd == "" {
		return
	}
	_, err := c.Write(redis.MustEncodeToBytes(redis.NewCommand("auth", passwd)))
	if err != nil {
		log.PanicError(errors.Trace(err), "write auth command failed")
	}
	var b = make([]byte, 5)
	if _, err := io.ReadFull(c, b); err != nil {
		log.PanicError(errors.Trace(err), "read auth response failed")
	}
	if strings.ToUpper(string(b)) != "+OK\r\n" {
		log.Panic("auth failed")
	}
}
Пример #4
0
func sendPSyncContinue(br *bufio.Reader, bw *bufio.Writer, runid string, offset int64) {
	cmd := redis.NewCommand("psync", runid, offset+2)
	if err := redis.Encode(bw, cmd, true); err != nil {
		log.PanicError(err, "write psync command failed, continue")
	}
	r, err := redis.Decode(br)
	if err != nil {
		log.PanicError(err, "invalid psync response, continue")
	}
	if e, ok := r.(*redis.Error); ok {
		log.Panicf("invalid psync response, continue, %s", e.Value)
	}
	x, err := redis.AsString(r, nil)
	if err != nil {
		log.PanicError(err, "invalid psync response, continue")
	}
	xx := strings.Split(x, " ")
	if len(xx) != 1 || strings.ToLower(xx[0]) != "continue" {
		log.Panicf("invalid psync response = '%s', should be continue", x)
	}
}
Пример #5
0
func sendPSyncAck(bw *bufio.Writer, offset int64) error {
	cmd := redis.NewCommand("replconf", "ack", offset)
	return redis.Encode(bw, cmd, true)
}