Exemple #1
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)
}
Exemple #2
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)
	}
}
Exemple #3
0
func sendPSyncAck(bw *bufio.Writer, offset int64) error {
	cmd := redis.NewCommand("replconf", "ack", offset)
	return redis.Encode(bw, cmd, true)
}