Exemple #1
0
func (h *Handler) daemonSyncMaster() {
	var last *conn
	wait := make(chan int, 0)
	for exit := false; !exit; {
		var c *conn
		select {
		case <-wait:
			last = nil
		case <-h.signal:
			exit = true
		case c = <-h.master:
		}
		if last != nil {
			last.Close()
			<-wait
		}
		last = c
		if c != nil {
			go func() {
				defer func() {
					wait <- 0
				}()
				defer c.Close()
				err := h.doSyncTo(c)
				log.InfoErrorf(err, "stop sync: %s", c.summ)
			}()
			h.syncto = c.nc.RemoteAddr().String()
			log.Infof("sync to %s", h.syncto)
		} else {
			h.syncto = ""
			log.Infof("sync to no one")
		}
	}
}
Exemple #2
0
func (b *Rpdb) Reset() error {
	if err := b.acquire(); err != nil {
		return err
	}
	defer b.release()
	log.Infof("rpdb is reseting...")
	for i := b.splist.Len(); i != 0; i-- {
		v := b.splist.Remove(b.splist.Front()).(*RpdbSnapshot)
		v.Close()
	}
	for i := b.itlist.Len(); i != 0; i-- {
		v := b.itlist.Remove(b.itlist.Front()).(*rpdbIterator)
		v.Close()
	}
	if err := b.db.Clear(); err != nil {
		b.db.Close()
		b.db = nil
		log.ErrorErrorf(err, "rpdb reset failed")
		return err
	} else {
		b.serial++
		log.Infof("rpdb is reset")
		return nil
	}
}
Exemple #3
0
func (cmd *cmdDump) Main() {
	from, output := args.from, args.output
	if len(from) == 0 {
		log.Panic("invalid argument: from")
	}
	if len(output) == 0 {
		output = "/dev/stdout"
	}

	log.Infof("dump from '%s' to '%s'\n", from, output)

	var dumpto io.WriteCloser
	if output != "/dev/stdout" {
		dumpto = openWriteFile(output)
		defer dumpto.Close()
	} else {
		dumpto = os.Stdout
	}

	master, nsize := cmd.SendCmd(from, args.passwd)
	defer master.Close()

	log.Infof("rdb file = %d\n", nsize)

	reader := bufio.NewReaderSize(master, ReaderBufferSize)
	writer := bufio.NewWriterSize(dumpto, WriterBufferSize)

	cmd.DumpRDBFile(reader, writer, nsize)

	if !args.extra {
		return
	}

	cmd.DumpCommand(reader, writer, nsize)
}
Exemple #4
0
func (cmd *cmdSync) SendPSyncCmd(master, passwd string) (pipe.Reader, int64) {
	c := openNetConn(master, passwd)
	br := bufio.NewReaderSize(c, ReaderBufferSize)
	bw := bufio.NewWriterSize(c, WriterBufferSize)

	runid, offset, wait := sendPSyncFullsync(br, bw)
	log.Infof("psync runid = %s offset = %d, fullsync", runid, offset)

	var nsize int64
	for nsize == 0 {
		select {
		case nsize = <-wait:
			if nsize == 0 {
				log.Info("+")
			}
		case <-time.After(time.Second):
			log.Info("-")
		}
	}

	piper, pipew := pipe.NewSize(ReaderBufferSize)

	go func() {
		defer pipew.Close()
		p := make([]byte, 8192)
		for rdbsize := int(nsize); rdbsize != 0; {
			rdbsize -= iocopy(br, pipew, p, rdbsize)
		}
		for {
			n, err := cmd.PSyncPipeCopy(c, br, bw, offset, pipew)
			if err != nil {
				log.PanicErrorf(err, "psync runid = %s, offset = %d, pipe is broken", runid, offset)
			}
			offset += n
			for {
				time.Sleep(time.Second)
				c = openNetConnSoft(master, passwd)
				if c != nil {
					log.Infof("psync reopen connection, offset = %d", offset)
					break
				} else {
					log.Infof("psync reopen connection, failed")
				}
			}
			authPassword(c, passwd)
			br = bufio.NewReaderSize(c, ReaderBufferSize)
			bw = bufio.NewWriterSize(c, WriterBufferSize)
			sendPSyncContinue(br, bw, runid, offset)
		}
	}()
	return piper, nsize
}
Exemple #5
0
func (b *Rpdb) CompactAll() error {
	if err := b.acquire(); err != nil {
		return err
	}
	defer b.release()
	log.Infof("rpdb is compacting all...")
	if err := b.compact([]byte{MetaCode}, []byte{MetaCode + 1}); err != nil {
		return err
	}
	if err := b.compact([]byte{DataCode}, []byte{DataCode + 1}); err != nil {
		return err
	}
	log.Infof("rpdb is compacted")
	return nil
}
Exemple #6
0
func Serve(config *Config, bl *rpdb.Rpdb) error {
	h := &Handler{
		config: config,
		master: make(chan *conn, 0),
		signal: make(chan int, 0),
	}
	defer func() {
		close(h.signal)
	}()

	l, err := net.Listen("tcp", config.Listen)
	if err != nil {
		return errors.Trace(err)
	}
	defer l.Close()

	if h.htable, err = redis.NewHandlerTable(h); err != nil {
		return err
	} else {
		go h.daemonSyncMaster()
	}

	log.Infof("open listen address '%s' and start service", l.Addr())

	for {
		if nc, err := l.Accept(); err != nil {
			return errors.Trace(err)
		} else {
			h.counters.clientsAccepted.Add(1)
			go func() {
				h.counters.clients.Add(1)
				defer h.counters.clients.Sub(1)
				c := newConn(nc, bl, h.config.ConnTimeout)
				defer c.Close()
				log.Infof("new connection: %s", c.summ)
				if err := c.serve(h); err != nil {
					if errors.Equal(err, io.EOF) {
						log.Infof("connection lost: %s [io.EOF]", c.summ)
					} else {
						log.InfoErrorf(err, "connection lost: %s", c.summ)
					}
				} else {
					log.Infof("connection exit: %s", c.summ)
				}
			}()
		}
	}
}
Exemple #7
0
// SLAVEOF host port
func (h *Handler) SlaveOf(arg0 interface{}, args [][]byte) (redis.Resp, error) {
	if len(args) != 2 {
		return toRespErrorf("len(args) = %d, expect = 2", len(args))
	}

	s, err := session(arg0, args)
	if err != nil {
		return toRespError(err)
	}

	addr := fmt.Sprintf("%s:%s", string(args[0]), string(args[1]))
	log.Infof("set slave of %s", addr)

	var c *conn
	if strings.ToLower(addr) != "no:one" {
		if nc, err := net.DialTimeout("tcp", addr, time.Second); err != nil {
			return toRespError(errors.Trace(err))
		} else {
			c = newConn(nc, s.Rpdb(), 0)
			if err := c.ping(); err != nil {
				c.Close()
				return toRespError(err)
			}
		}
	}
	select {
	case <-h.signal:
		if c != nil {
			c.Close()
		}
		return toRespErrorf("sync master has been closed")
	case h.master <- c:
		return redis.NewString("OK"), nil
	}
}
Exemple #8
0
func init() {
	poolmap.m = make(map[string]*list.List)
	go func() {
		for {
			time.Sleep(time.Second)
			poolmap.Lock()
			for addr, pool := range poolmap.m {
				for i := pool.Len(); i != 0; i-- {
					c := pool.Remove(pool.Front()).(*conn)
					if time.Now().Before(c.last.Add(time.Second * 5)) {
						pool.PushBack(c)
					} else {
						c.sock.Close()
						log.Infof("close connection %s : %s", addr, c.summ)
					}
				}
				if pool.Len() != 0 {
					continue
				}
				delete(poolmap.m, addr)
			}
			poolmap.Unlock()
		}
	}()
}
Exemple #9
0
func (cmd *cmdRestore) Main() {
	input, target := args.input, args.target
	if len(target) == 0 {
		log.Panic("invalid argument: target")
	}
	if len(input) == 0 {
		input = "/dev/stdin"
	}

	log.Infof("restore from '%s' to '%s'\n", input, target)

	var readin io.ReadCloser
	var nsize int64
	if input != "/dev/stdin" {
		readin, nsize = openReadFile(input)
		defer readin.Close()
	} else {
		readin, nsize = os.Stdin, 0
	}

	reader := bufio.NewReaderSize(readin, ReaderBufferSize)

	cmd.RestoreRDBFile(reader, target, args.auth, nsize)

	if !args.extra {
		return
	}

	if nsize != 0 && nsize == cmd.rbytes.Get() {
		return
	}

	cmd.RestoreCommand(reader, target, args.auth)
}
Exemple #10
0
func (cmd *cmdDump) DumpRDBFile(reader *bufio.Reader, writer *bufio.Writer, nsize int64) {
	var nread atomic2.Int64
	wait := make(chan struct{})
	go func() {
		defer close(wait)
		p := make([]byte, WriterBufferSize)
		for nsize != nread.Get() {
			nstep := int(nsize - nread.Get())
			ncopy := int64(iocopy(reader, writer, p, nstep))
			nread.Add(ncopy)
			flushWriter(writer)
		}
	}()

	for done := false; !done; {
		select {
		case <-wait:
			done = true
		case <-time.After(time.Second):
		}
		n := nread.Get()
		p := 100 * n / nsize
		log.Infof("total = %d - %12d [%3d%%]\n", nsize, n, p)
	}
	log.Info("dump: rdb done")
}
Exemple #11
0
func (cmd *cmdSync) Main() {
	from, target := args.from, args.target
	if len(from) == 0 {
		log.Panic("invalid argument: from")
	}
	if len(target) == 0 {
		log.Panic("invalid argument: target")
	}

	log.Infof("sync from '%s' to '%s'\n", from, target)

	var sockfile *os.File
	if len(args.sockfile) != 0 {
		sockfile = openReadWriteFile(args.sockfile)
		defer sockfile.Close()
	}

	var input io.ReadCloser
	var nsize int64
	if args.psync {
		input, nsize = cmd.SendPSyncCmd(from, args.passwd)
	} else {
		input, nsize = cmd.SendSyncCmd(from, args.passwd)
	}
	defer input.Close()

	log.Infof("rdb file = %d\n", nsize)

	if sockfile != nil {
		r, w := pipe.NewFilePipe(int(args.filesize), sockfile)
		defer r.Close()
		go func(r io.Reader) {
			defer w.Close()
			p := make([]byte, ReaderBufferSize)
			for {
				iocopy(r, w, p, len(p))
			}
		}(input)
		input = r
	}

	reader := bufio.NewReaderSize(input, ReaderBufferSize)

	cmd.SyncRDBFile(reader, target, args.auth, nsize)
	cmd.SyncCommand(reader, target, args.auth)
}
Exemple #12
0
func (s *RpdbSnapshot) Close() {
	if err := s.acquire(); err != nil {
		return
	}
	defer s.release()
	log.Infof("snapshot is closing ...")
	if s.cursor.it != nil {
		s.cursor.it.Close()
		s.cursor.it = nil
	}
	for i := s.readers.Len(); i != 0; i-- {
		r := s.readers.Remove(s.readers.Front()).(*snapshotReader)
		r.cleanup()
	}
	s.sp.Close()
	s.sp = nil
	log.Infof("snapshot is closed")
}
Exemple #13
0
func (b *Rpdb) NewSnapshot() (*RpdbSnapshot, error) {
	if err := b.acquire(); err != nil {
		return nil, err
	}
	defer b.release()
	sp := &RpdbSnapshot{sp: b.db.NewSnapshot()}
	b.splist.PushBack(sp)
	log.Infof("rpdb create new snapshot, address = %p", sp)
	return sp, nil
}
Exemple #14
0
func (b *Rpdb) Close() {
	if err := b.acquire(); err != nil {
		return
	}
	defer b.release()
	log.Infof("rpdb is closing ...")
	for i := b.splist.Len(); i != 0; i-- {
		v := b.splist.Remove(b.splist.Front()).(*RpdbSnapshot)
		v.Close()
	}
	for i := b.itlist.Len(); i != 0; i-- {
		v := b.itlist.Remove(b.itlist.Front()).(*rpdbIterator)
		v.Close()
	}
	if b.db != nil {
		b.db.Close()
		b.db = nil
	}
	log.Infof("rpdb is closed")
}
Exemple #15
0
func (b *Rpdb) ReleaseSnapshot(sp *RpdbSnapshot) {
	if err := b.acquire(); err != nil {
		return
	}
	defer b.release()
	log.Infof("rpdb release snapshot, address = %p", sp)
	for i := b.splist.Len(); i != 0; i-- {
		v := b.splist.Remove(b.splist.Front()).(*RpdbSnapshot)
		if v != sp {
			b.splist.PushBack(v)
		}
	}
	sp.Close()
}
Exemple #16
0
func (cmd *cmdDump) DumpCommand(reader *bufio.Reader, writer *bufio.Writer, nsize int64) {
	var nread atomic2.Int64
	go func() {
		p := make([]byte, ReaderBufferSize)
		for {
			ncopy := int64(iocopy(reader, writer, p, len(p)))
			nread.Add(ncopy)
			flushWriter(writer)
		}
	}()

	for {
		time.Sleep(time.Second)
		log.Infof("dump: total = %d\n", nsize+nread.Get())
	}
}
Exemple #17
0
func getSockConn(addr string, timeout time.Duration) (*conn, error) {
	poolmap.Lock()
	if pool := poolmap.m[addr]; pool != nil && pool.Len() != 0 {
		c := pool.Remove(pool.Front()).(*conn)
		poolmap.Unlock()
		return c, nil
	}
	poolmap.Unlock()
	sock, err := net.DialTimeout("tcp", addr, timeout)
	if err != nil {
		return nil, errors.Trace(err)
	}
	c := &conn{
		summ: fmt.Sprintf("<local> %s -- %s <remote>", sock.LocalAddr(), sock.RemoteAddr()),
		sock: sock,
		last: time.Now(),
		r:    bufio.NewReader(sock),
		w:    bufio.NewWriter(sock),
	}
	log.Infof("create connection %s : %s", addr, c.summ)
	return c, nil
}
Exemple #18
0
func (h *Handler) doSyncTo(c *conn) error {
	defer func() {
		h.counters.syncTotalBytes.Set(0)
		h.counters.syncCacheBytes.Set(0)
	}()

	filePath := h.config.SyncFilePath
	fileSize := h.config.SyncFileSize
	buffSize := h.config.SyncBuffSize

	var file *os.File
	if filePath != "" {
		f, err := pipe.OpenFile(filePath, false)
		if err != nil {
			log.ErrorErrorf(err, "open pipe file '%s' failed", filePath)
		} else {
			file = f
		}
	}

	pr, pw := pipe.PipeFile(buffSize, fileSize, file)
	defer pr.Close()

	wg := &sync.WaitGroup{}
	defer wg.Wait()

	wg.Add(1)
	go func(r io.Reader) {
		defer wg.Done()
		defer pw.Close()
		p := make([]byte, 8192)
		for {
			deadline := time.Now().Add(time.Minute)
			if err := c.nc.SetReadDeadline(deadline); err != nil {
				pr.CloseWithError(errors.Trace(err))
				return
			}
			n, err := r.Read(p)
			if err != nil {
				pr.CloseWithError(err)
				return
			}
			h.counters.syncTotalBytes.Add(int64(n))
			s := p[:n]
			for len(s) != 0 {
				n, err := pw.Write(s)
				if err != nil {
					pr.CloseWithError(err)
					return
				}
				s = s[n:]
			}
		}
	}(c.r)

	wg.Add(1)
	go func() {
		defer wg.Done()
		for {
			time.Sleep(time.Millisecond * 200)
			n, err := pr.Buffered()
			if err != nil {
				return
			}
			h.counters.syncCacheBytes.Set(int64(n))
		}
	}()

	c.r = bufio.NewReader(pr)

	size, err := c.presync()
	if err != nil {
		return err
	}
	log.Infof("sync rdb file size = %d bytes\n", size)

	c.w = bufio.NewWriter(ioutil.Discard)

	if err := c.Rpdb().Reset(); err != nil {
		return err
	}

	if err := h.doSyncRDB(c, size); err != nil {
		return err
	}
	log.Infof("sync rdb done")

	return c.serve(h)
}
Exemple #19
0
func main() {
	usage := `
Usage:
	redis-port decode   [--ncpu=N]  [--parallel=M]  [--input=INPUT]  [--output=OUTPUT]
	redis-port restore  [--ncpu=N]  [--parallel=M]  [--input=INPUT]   --target=TARGET   [--extra]  [--faketime=FAKETIME]  [--filterdb=DB]
	redis-port dump     [--ncpu=N]  [--parallel=M]   --from=MASTER   [--output=OUTPUT]  [--password=PASSWORD]  [--extra]
	redis-port sync     [--ncpu=N]  [--parallel=M]   --from=MASTER    --target=TARGET   [--password=PASSWORD]  [--sockfile=FILE [--filesize=SIZE]] [--filterdb=DB] [--psync]

Options:
	-n N, --ncpu=N                    Set runtime.GOMAXPROCS to N.
	-p M, --parallel=M                Set the number of parallel routines to M.
	-i INPUT, --input=INPUT           Set input file, default is stdin ('/dev/stdin').
	-o OUTPUT, --output=OUTPUT        Set output file, default is stdout ('/dev/stdout').
	-f MASTER, --from=MASTER          Set host:port of master redis.
	-t TARGET, --target=TARGET        Set host:port of slave redis.
	-P PASSWORD, --password=PASSWORD  Set redis auth password.
	--faketime=FAKETIME               Set current system time to adjust key's expire time.
	--sockfile=FILE                   Use FILE to as socket buffer, default is disabled.
	--filesize=SIZE                   Set FILE size, default value is 1gb.
	-e, --extra                       Set ture to send/receive following redis commands, default is false.
	--filterdb=DB                     Filter db = DB, default is *.
	--psync                           Use PSYNC command.
`
	d, err := docopt.Parse(usage, nil, true, "", false)
	if err != nil {
		log.PanicError(err, "parse arguments failed")
	}

	if s, ok := d["--ncpu"].(string); ok && s != "" {
		n, err := parseInt(s, 1, 1024)
		if err != nil {
			log.PanicErrorf(err, "parse --ncpu failed")
		}
		runtime.GOMAXPROCS(n)
	}
	ncpu := runtime.GOMAXPROCS(0)

	if s, ok := d["--parallel"].(string); ok && s != "" {
		n, err := parseInt(s, 1, 1024)
		if err != nil {
			log.PanicErrorf(err, "parse --parallel failed")
		}
		args.parallel = n
	}
	if ncpu > args.parallel {
		args.parallel = ncpu
	}
	if args.parallel == 0 {
		args.parallel = 4
	}

	args.input, _ = d["--input"].(string)
	args.output, _ = d["--output"].(string)

	args.from, _ = d["--from"].(string)
	args.target, _ = d["--target"].(string)
	args.passwd, _ = d["--password"].(string)

	args.extra, _ = d["--extra"].(bool)
	args.psync, _ = d["--psync"].(bool)
	args.sockfile, _ = d["--sockfile"].(string)

	if s, ok := d["--faketime"].(string); ok && s != "" {
		switch s[0] {
		case '-', '+':
			d, err := time.ParseDuration(strings.ToLower(s))
			if err != nil {
				log.PanicError(err, "parse --faketime failed")
			}
			args.shift = d
		case '@':
			n, err := strconv.ParseInt(s[1:], 10, 64)
			if err != nil {
				log.PanicError(err, "parse --faketime failed")
			}
			args.shift = time.Duration(n*int64(time.Millisecond) - time.Now().UnixNano())
		default:
			t, err := time.Parse("2006-01-02 15:04:05", s)
			if err != nil {
				log.PanicError(err, "parse --faketime failed")
			}
			args.shift = time.Duration(t.UnixNano() - time.Now().UnixNano())
		}
	}

	if s, ok := d["--filterdb"].(string); ok && s != "" && s != "*" {
		n, err := parseInt(s, MinDB, MaxDB)
		if err != nil {
			log.PanicError(err, "parse --filterdb failed")
		}
		u := uint32(n)
		acceptDB = func(db uint32) bool {
			return db == u
		}
	}

	if s, ok := d["--filesize"].(string); ok && s != "" {
		if len(args.sockfile) == 0 {
			log.Panic("please specify --sockfile first")
		}
		n, err := bytesize.Parse(s)
		if err != nil {
			log.PanicError(err, "parse --filesize failed")
		}
		if n <= 0 {
			log.Panicf("parse --filesize = %d, invalid number", n)
		}
		args.filesize = n
	} else {
		args.filesize = bytesize.GB
	}

	log.Infof("set ncpu = %d, parallel = %d\n", ncpu, args.parallel)

	switch {
	case d["decode"].(bool):
		new(cmdDecode).Main()
	case d["restore"].(bool):
		new(cmdRestore).Main()
	case d["dump"].(bool):
		new(cmdDump).Main()
	case d["sync"].(bool):
		new(cmdSync).Main()
	}
}
Exemple #20
0
func (cmd *cmdDecode) Main() {
	input, output := args.input, args.output
	if len(input) == 0 {
		input = "/dev/stdin"
	}
	if len(output) == 0 {
		output = "/dev/stdout"
	}

	log.Infof("decode from '%s' to '%s'\n", input, output)

	var readin io.ReadCloser
	var nsize int64
	if input != "/dev/stdin" {
		readin, nsize = openReadFile(input)
		defer readin.Close()
	} else {
		readin, nsize = os.Stdin, 0
	}

	var saveto io.WriteCloser
	if output != "/dev/stdout" {
		saveto = openWriteFile(output)
		defer saveto.Close()
	} else {
		saveto = os.Stdout
	}

	reader := bufio.NewReaderSize(readin, ReaderBufferSize)
	writer := bufio.NewWriterSize(saveto, WriterBufferSize)

	ipipe := newRDBLoader(reader, &cmd.rbytes, args.parallel*32)
	opipe := make(chan string, cap(ipipe))

	go func() {
		defer close(opipe)
		group := make(chan int, args.parallel)
		for i := 0; i < cap(group); i++ {
			go func() {
				defer func() {
					group <- 0
				}()
				cmd.decoderMain(ipipe, opipe)
			}()
		}
		for i := 0; i < cap(group); i++ {
			<-group
		}
	}()

	wait := make(chan struct{})
	go func() {
		defer close(wait)
		for s := range opipe {
			cmd.wbytes.Add(int64(len(s)))
			if _, err := writer.WriteString(s); err != nil {
				log.PanicError(err, "write string failed")
			}
			flushWriter(writer)
		}
	}()

	for done := false; !done; {
		select {
		case <-wait:
			done = true
		case <-time.After(time.Second):
		}
		stat := cmd.Stat()
		var b bytes.Buffer
		fmt.Fprintf(&b, "decode: ")
		if nsize != 0 {
			fmt.Fprintf(&b, "total = %d - %12d [%3d%%]", nsize, stat.rbytes, 100*stat.rbytes/nsize)
		} else {
			fmt.Fprintf(&b, "total = %12d", stat.rbytes)
		}
		fmt.Fprintf(&b, "  write=%-12d", stat.wbytes)
		fmt.Fprintf(&b, "  entry=%-12d", stat.nentry)
		log.Info(b.String())
	}
	log.Info("decode: done")
}
Exemple #21
0
func main() {
	usage := `
Usage:
	rpdb [--config=CONF] [--create|--repair] [--ncpu=N]

Options:
	-n N, --ncpu=N                    set runtime.GOMAXPROCS to N
	-c CONF, --config=CONF            specify the config file
	--create                          create if not exists
	--repair                          repair database
`
	d, err := docopt.Parse(usage, nil, true, "", false)
	if err != nil {
		log.PanicErrorf(err, "parse arguments failed")
	}
	if s, ok := d["--ncpu"].(string); ok && len(s) != 0 {
		if n, err := strconv.ParseInt(s, 10, 64); err != nil {
			log.PanicErrorf(err, "parse --ncpu failed")
		} else if n <= 0 || n > 64 {
			log.Panicf("parse --ncpu = %d, only accept [1,64]", n)
		} else {
			runtime.GOMAXPROCS(int(n))
		}
	}

	args.config, _ = d["--config"].(string)
	args.create, _ = d["--create"].(bool)
	args.repair, _ = d["--repair"].(bool)

	conf := &Config{
		DBType:  "rocksdb",
		DBPath:  "testdb-rocksdb",
		LevelDB: leveldb.NewDefaultConfig(),
		RocksDB: rocksdb.NewDefaultConfig(),
		Service: service.NewDefaultConfig(),
	}

	if args.config != "" {
		if err := conf.LoadFromFile(args.config); err != nil {
			log.PanicErrorf(err, "load config failed")
		}
	}

	log.Infof("load config\n%s\n\n", conf)

	var db store.Database
	switch t := strings.ToLower(conf.DBType); t {
	default:
		log.Panicf("unknown db type = '%s'", conf.DBType)
	case "leveldb":
		db, err = leveldb.Open(conf.DBPath, conf.LevelDB, args.create, args.repair)
	case "rocksdb":
		db, err = rocksdb.Open(conf.DBPath, conf.RocksDB, args.create, args.repair)
	case "boltdb":
		db, err = boltdb.Open(conf.DBPath, conf.BoltDB, args.create, args.repair)
	}

	if err != nil {
		log.PanicErrorf(err, "open database failed")
	}

	bl := rpdb.New(db)
	defer bl.Close()

	if args.repair {
		return
	}

	c := make(chan os.Signal, 1)
	signal.Notify(c, os.Interrupt)

	go func() {
		for _ = range c {
			log.Infof("interrupt and shutdown")
			bl.Close()
			os.Exit(0)
		}
	}()

	if err := service.Serve(conf.Service, bl); err != nil {
		log.ErrorErrorf(err, "service failed")
	}
}