Example #1
0
// Init initializes ledis session provider.
// configs: data_dir=./app.db,db=0
func (p *LedisProvider) Init(expire int64, configs string) error {
	p.expire = expire

	cfg, err := ini.Load([]byte(strings.Replace(configs, ",", "\n", -1)))
	if err != nil {
		return err
	}

	db := 0
	opt := new(config.Config)
	for k, v := range cfg.Section("").KeysHash() {
		switch k {
		case "data_dir":
			opt.DataDir = v
		case "db":
			db = com.StrTo(v).MustInt()
		default:
			return fmt.Errorf("session/ledis: unsupported option '%s'", k)
		}
	}

	l, err := ledis.Open(opt)
	if err != nil {
		return fmt.Errorf("session/ledis: error opening db: %v", err)
	}
	p.c, err = l.Select(db)
	return err
}
Example #2
0
func TestBinLog(t *testing.T) {
	cfg := new(config.Config)

	cfg.BinLog.MaxFileNum = 1
	cfg.BinLog.MaxFileSize = 1024
	cfg.DataDir = "/tmp/ledis_binlog"

	os.RemoveAll(cfg.DataDir)

	b, err := NewBinLog(cfg)
	if err != nil {
		t.Fatal(err)
	}

	if err := b.Log(make([]byte, 1024)); err != nil {
		t.Fatal(err)
	}

	if err := b.Log(make([]byte, 1024)); err != nil {
		t.Fatal(err)
	}

	if fs, err := ioutil.ReadDir(b.LogPath()); err != nil {
		t.Fatal(err)
	} else if len(fs) != 2 {
		t.Fatal(len(fs))
	}
}
Example #3
0
File: ledis.go Project: kenno/cache
// StartAndGC starts GC routine based on config string settings.
// AdapterConfig: data_dir=./app.db,db=0
func (c *LedisCacher) StartAndGC(opts cache.Options) error {
	c.interval = opts.Interval

	cfg, err := ini.Load([]byte(strings.Replace(opts.AdapterConfig, ",", "\n", -1)))
	if err != nil {
		return err
	}

	db := 0
	opt := new(config.Config)
	for k, v := range cfg.Section("").KeysHash() {
		switch k {
		case "data_dir":
			opt.DataDir = v
		case "db":
			db = com.StrTo(v).MustInt()
		default:
			return fmt.Errorf("session/ledis: unsupported option '%s'", k)
		}
	}

	l, err := ledis.Open(opt)
	if err != nil {
		return fmt.Errorf("session/ledis: error opening db: %v", err)
	}
	c.c, err = l.Select(db)
	if err != nil {
		return err
	}

	go c.startGC()
	return nil
}
Example #4
0
func TestScan(t *testing.T) {
	cfg := new(config.Config)
	cfg.DataDir = "/tmp/test_scan"
	cfg.Addr = "127.0.0.1:11185"

	os.RemoveAll(cfg.DataDir)

	s, err := NewApp(cfg)
	if err != nil {
		t.Fatal(err)
	}
	go s.Run()
	defer s.Close()

	cc := new(ledis.Config)
	cc.Addr = cfg.Addr
	cc.MaxIdleConns = 1
	c := ledis.NewClient(cc)
	defer c.Close()

	testKVScan(t, c)
	testHashScan(t, c)
	testListScan(t, c)
	testZSetScan(t, c)
	testSetScan(t, c)
	testBitScan(t, c)

}
Example #5
0
func Open(cfg *config.Config) (*Ledis, error) {
	if len(cfg.DataDir) == 0 {
		cfg.DataDir = config.DefaultDataDir
	}

	if cfg.Databases == 0 {
		cfg.Databases = 16
	} else if cfg.Databases > MaxDatabases {
		cfg.Databases = MaxDatabases
	}

	os.MkdirAll(cfg.DataDir, 0755)

	var err error

	l := new(Ledis)
	l.cfg = cfg

	if l.lock, err = filelock.Lock(path.Join(cfg.DataDir, "LOCK")); err != nil {
		return nil, err
	}

	l.quit = make(chan struct{})

	if l.ldb, err = store.Open(cfg); err != nil {
		return nil, err
	}

	if cfg.UseReplication {
		if l.r, err = rpl.NewReplication(cfg); err != nil {
			return nil, err
		}

		l.rc = make(chan struct{}, 1)
		l.rbatch = l.ldb.NewWriteBatch()
		l.rDoneCh = make(chan struct{}, 1)

		l.wg.Add(1)
		go l.onReplication()

		//first we must try wait all replication ok
		//maybe some logs are not committed
		l.WaitReplication()
	} else {
		l.r = nil
	}

	l.dbs = make(map[int]*DB, 16)

	l.checkTTL()

	return l, nil
}
Example #6
0
func main() {
	runtime.GOMAXPROCS(runtime.NumCPU())

	flag.Parse()

	var cfg *config.Config
	var err error

	if len(*configFile) == 0 {
		println("no config set, using default config")
		cfg = config.NewConfigDefault()
	} else {
		cfg, err = config.NewConfigWithFile(*configFile)
	}

	if err != nil {
		println(err.Error())
		return
	}

	if len(*dbName) > 0 {
		cfg.DBName = *dbName
	}

	var app *server.App
	app, err = server.NewApp(cfg)
	if err != nil {
		println(err.Error())
		return
	}

	sc := make(chan os.Signal, 1)
	signal.Notify(sc,
		syscall.SIGHUP,
		syscall.SIGINT,
		syscall.SIGTERM,
		syscall.SIGQUIT)

	go func() {
		<-sc

		app.Close()
	}()

	go func() {
		log.Println(http.ListenAndServe("localhost:6060", nil))
	}()

	app.Run()
}
Example #7
0
func newTestRocksDB() *DB {
	cfg := new(config.Config)
	cfg.DBName = "rocksdb"
	cfg.DataDir = "/tmp/testdb"

	os.RemoveAll(getStorePath(cfg))

	db, err := Open(cfg)
	if err != nil {
		println(err.Error())
		panic(err)
	}

	return db
}
Example #8
0
func Open(cfg *config.Config) (*Ledis, error) {
	if len(cfg.DataDir) == 0 {
		cfg.DataDir = config.DefaultDataDir
	}

	ldb, err := store.Open(cfg)
	if err != nil {
		return nil, err
	}

	l := new(Ledis)

	l.quit = make(chan struct{})
	l.jobs = new(sync.WaitGroup)

	l.ldb = ldb

	if cfg.BinLog.MaxFileNum > 0 && cfg.BinLog.MaxFileSize > 0 {
		l.binlog, err = NewBinLog(cfg)
		if err != nil {
			return nil, err
		}
	} else {
		l.binlog = nil
	}

	for i := uint8(0); i < MaxDBNumber; i++ {
		l.dbs[i] = l.newDB(i)
	}

	l.activeExpireCycle()

	return l, nil
}
Example #9
0
func newTestLMDB() *DB {
	cfg := new(config.Config)
	cfg.DBName = "lmdb"
	cfg.DataDir = "/tmp/testdb"
	cfg.LMDB.MapSize = 10 * 1024 * 1024

	os.RemoveAll(getStorePath(cfg))

	db, err := Open(cfg)
	if err != nil {
		println(err.Error())
		panic(err)
	}

	return db
}
Example #10
0
func TestDump(t *testing.T) {
	cfgM := new(config.Config)
	cfgM.DataDir = "/tmp/test_ledis_master"

	os.RemoveAll(cfgM.DataDir)

	master, err := Open(cfgM)
	if err != nil {
		t.Fatal(err)
	}

	cfgS := new(config.Config)
	cfgS.DataDir = "/tmp/test_ledis_slave"
	os.RemoveAll(cfgM.DataDir)

	var slave *Ledis
	if slave, err = Open(cfgS); err != nil {
		t.Fatal(err)
	}

	db, _ := master.Select(0)

	db.Set([]byte("a"), []byte("1"))
	db.Set([]byte("b"), []byte("2"))
	db.Set([]byte("c"), []byte("3"))

	if err := master.DumpFile("/tmp/testdb.dump"); err != nil {
		t.Fatal(err)
	}

	if _, err := slave.LoadDumpFile("/tmp/testdb.dump"); err != nil {
		t.Fatal(err)
	}

	it := master.ldb.RangeLimitIterator(nil, nil, store.RangeClose, 0, -1)
	for ; it.Valid(); it.Next() {
		key := it.Key()
		value := it.Value()

		if v, err := slave.ldb.Get(key); err != nil {
			t.Fatal(err)
		} else if !bytes.Equal(v, value) {
			t.Fatal("load dump error")
		}
	}
}
Example #11
0
func InitDb() {
	initLedisFunc := func() {
		cfg := new(config.Config)
		cfg.DataDir = beego.AppConfig.String("ledisdb::DataDir")
		var err error
		nowLedis, err = ledis.Open(cfg)
		if err != nil {
			println(err.Error())
			panic(err)
		}
	}

	ledisOnce.Do(initLedisFunc)

	db, _ := beego.AppConfig.Int("ledisdb::DB")

	LedisDB, _ = nowLedis.Select(db)
}
Example #12
0
func GetStore(cfg *config.Config) (Store, error) {
	if len(cfg.DBName) == 0 {
		cfg.DBName = config.DefaultDBName
	}

	s, ok := dbs[cfg.DBName]
	if !ok {
		return nil, fmt.Errorf("store %s is not registered", cfg.DBName)
	}

	return s, nil
}
Example #13
0
func getTestDB() *DB {
	f := func() {
		cfg := new(config.Config)
		cfg.DataDir = "/tmp/test_ledis"
		cfg.BinLog.MaxFileSize = 1073741824
		cfg.BinLog.MaxFileNum = 3

		os.RemoveAll(cfg.DataDir)

		var err error
		testLedis, err = Open(cfg)
		if err != nil {
			println(err.Error())
			panic(err)
		}
	}

	testLedisOnce.Do(f)
	db, _ := testLedis.Select(0)
	return db
}
Example #14
0
File: app.go Project: Abioy/ledisdb
func NewApp(cfg *config.Config) (*App, error) {
	if len(cfg.DataDir) == 0 {
		println("use default datadir %s", config.DefaultDataDir)
		cfg.DataDir = config.DefaultDataDir
	}

	app := new(App)

	app.quit = make(chan struct{})

	app.closed = false

	app.cfg = cfg

	var err error

	if app.info, err = newInfo(app); err != nil {
		return nil, err
	}

	if app.listener, err = net.Listen(netType(cfg.Addr), cfg.Addr); err != nil {
		return nil, err
	}

	if len(cfg.HttpAddr) > 0 {
		if app.httpListener, err = net.Listen(netType(cfg.HttpAddr), cfg.HttpAddr); err != nil {
			return nil, err
		}
	}

	if len(cfg.AccessLog) > 0 {
		if path.Dir(cfg.AccessLog) == "." {
			app.access, err = newAcessLog(path.Join(cfg.DataDir, cfg.AccessLog))
		} else {
			app.access, err = newAcessLog(cfg.AccessLog)
		}

		if err != nil {
			return nil, err
		}
	}

	if app.ldb, err = ledis.Open(cfg); err != nil {
		return nil, err
	}

	app.m = newMaster(app)

	app.openScript()

	return app, nil
}
Example #15
0
func testTx(t *testing.T, name string) {
	cfg := new(config.Config)
	cfg.DataDir = "/tmp/ledis_test_tx"

	cfg.DBName = name
	cfg.LMDB.MapSize = 10 * 1024 * 1024

	os.RemoveAll(cfg.DataDir)

	l, err := Open(cfg)
	if err != nil {
		t.Fatal(err)
	}

	defer l.Close()

	db, _ := l.Select(0)

	testTxRollback(t, db)
	testTxCommit(t, db)
	testTxSelect(t, db)
}
// init ledis session
// savepath like ledis server saveDataPath,pool size
// e.g. 127.0.0.1:6379,100,astaxie
func (lp *LedisProvider) SessionInit(maxlifetime int64, savePath string) error {
	var err error
	lp.maxlifetime = maxlifetime
	configs := strings.Split(savePath, ",")
	if len(configs) == 1 {
		lp.savePath = configs[0]
	} else if len(configs) == 2 {
		lp.savePath = configs[0]
		lp.db, err = strconv.Atoi(configs[1])
		if err != nil {
			return err
		}
	}
	cfg := new(config.Config)
	cfg.DataDir = lp.savePath
	nowLedis, err := ledis.Open(cfg)
	c, err = nowLedis.Select(lp.db)
	if err != nil {
		println(err)
		return nil
	}
	return nil
}
Example #17
0
func TestStore(t *testing.T) {
	cfg := new(config.Config)
	cfg.DataDir = "/tmp/testdb"
	cfg.LMDB.MapSize = 10 * 1024 * 1024

	ns := driver.ListStores()
	for _, s := range ns {
		cfg.DBName = s

		os.RemoveAll(getStorePath(cfg))

		db, err := Open(cfg)
		if err != nil {
			t.Fatal(err)
		}

		testStore(db, t)
		testClear(db, t)
		testTx(db, t)

		db.Close()
	}
}
Example #18
0
func startTestApp() {
	f := func() {
		newTestLedisClient()

		cfg := new(config.Config)
		cfg.DataDir = "/tmp/testdb"
		os.RemoveAll(cfg.DataDir)

		cfg.Addr = "127.0.0.1:16380"

		os.RemoveAll("/tmp/testdb")

		var err error
		testApp, err = NewApp(cfg)
		if err != nil {
			println(err.Error())
			panic(err)
		}

		go testApp.Run()
	}

	testAppOnce.Do(f)
}
Example #19
0
func Open(cfg *config.Config) (*Ledis, error) {
	if len(cfg.DataDir) == 0 {
		fmt.Printf("no datadir set, use default %s\n", config.DefaultDataDir)
		cfg.DataDir = config.DefaultDataDir
	}

	ldb, err := store.Open(cfg)
	if err != nil {
		return nil, err
	}

	l := new(Ledis)

	l.quit = make(chan struct{})
	l.jobs = new(sync.WaitGroup)

	l.ldb = ldb

	if cfg.BinLog.MaxFileNum > 0 && cfg.BinLog.MaxFileSize > 0 {
		println("binlog will be refactored later, use your own risk!!!")
		l.binlog, err = NewBinLog(cfg)
		if err != nil {
			return nil, err
		}
	} else {
		l.binlog = nil
	}

	for i := uint8(0); i < MaxDBNumber; i++ {
		l.dbs[i] = newDB(l, i)
	}

	l.activeExpireCycle()

	return l, nil
}
Example #20
0
func NewApp(cfg *config.Config) (*App, error) {
	if len(cfg.DataDir) == 0 {
		println("use default datadir %s", config.DefaultDataDir)
		cfg.DataDir = config.DefaultDataDir
	}

	app := new(App)

	app.quit = make(chan struct{})

	app.closed = false

	app.cfg = cfg

	app.slaves = make(map[string]*client)
	app.slaveSyncAck = make(chan uint64)

	app.rcs = make(map[*respClient]struct{})

	app.migrateClients = make(map[string]*goredis.Client)
	app.newMigrateKeyLockers()

	var err error

	if app.info, err = newInfo(app); err != nil {
		return nil, err
	}

	if app.listener, err = net.Listen(netType(cfg.Addr), cfg.Addr); err != nil {
		return nil, err
	}

	if len(cfg.HttpAddr) > 0 {
		if app.httpListener, err = net.Listen(netType(cfg.HttpAddr), cfg.HttpAddr); err != nil {
			return nil, err
		}
	}

	if len(cfg.AccessLog) > 0 {
		if path.Dir(cfg.AccessLog) == "." {
			app.access, err = newAcessLog(path.Join(cfg.DataDir, cfg.AccessLog))
		} else {
			app.access, err = newAcessLog(cfg.AccessLog)
		}

		if err != nil {
			return nil, err
		}
	}

	if app.snap, err = newSnapshotStore(cfg); err != nil {
		return nil, err
	}

	if len(app.cfg.SlaveOf) > 0 {
		//slave must readonly
		app.cfg.Readonly = true
	}

	if app.ldb, err = ledis.Open(cfg); err != nil {
		return nil, err
	}

	app.m = newMaster(app)

	app.openScript()

	app.ldb.AddNewLogEventHandler(app.publishNewLog)

	return app, nil
}
Example #21
0
func TestReplication(t *testing.T) {
	var master *Ledis
	var slave *Ledis
	var err error

	cfgM := new(config.Config)
	cfgM.DataDir = "/tmp/test_repl/master"

	cfgM.BinLog.MaxFileNum = 10
	cfgM.BinLog.MaxFileSize = 50

	os.RemoveAll(cfgM.DataDir)

	master, err = Open(cfgM)
	if err != nil {
		t.Fatal(err)
	}

	cfgS := new(config.Config)
	cfgS.DataDir = "/tmp/test_repl/slave"

	os.RemoveAll(cfgS.DataDir)

	slave, err = Open(cfgS)
	if err != nil {
		t.Fatal(err)
	}

	db, _ := master.Select(0)
	db.Set([]byte("a"), []byte("value"))
	db.Set([]byte("b"), []byte("value"))
	db.Set([]byte("c"), []byte("value"))

	if tx, err := db.Begin(); err == nil {
		tx.HSet([]byte("a"), []byte("1"), []byte("value"))
		tx.HSet([]byte("b"), []byte("2"), []byte("value"))
		tx.HSet([]byte("c"), []byte("3"), []byte("value"))
		tx.Commit()
	} else {
		db.HSet([]byte("a"), []byte("1"), []byte("value"))
		db.HSet([]byte("b"), []byte("2"), []byte("value"))
		db.HSet([]byte("c"), []byte("3"), []byte("value"))
	}

	m, _ := db.Multi()
	m.Set([]byte("a1"), []byte("value"))
	m.Set([]byte("b1"), []byte("value"))
	m.Set([]byte("c1"), []byte("value"))
	m.Close()

	for _, name := range master.binlog.LogNames() {
		p := path.Join(master.binlog.LogPath(), name)

		err = slave.ReplicateFromBinLog(p)
		if err != nil {
			t.Fatal(err)
		}
	}

	if err = checkLedisEqual(master, slave); err != nil {
		t.Fatal(err)
	}

	slave.FlushAll()

	db.Set([]byte("a1"), []byte("value"))
	db.Set([]byte("b1"), []byte("value"))
	db.Set([]byte("c1"), []byte("value"))

	db.HSet([]byte("a1"), []byte("1"), []byte("value"))
	db.HSet([]byte("b1"), []byte("2"), []byte("value"))
	db.HSet([]byte("c1"), []byte("3"), []byte("value"))

	if tx, err := db.Begin(); err == nil {
		tx.HSet([]byte("a1"), []byte("1"), []byte("value1"))
		tx.HSet([]byte("b1"), []byte("2"), []byte("value1"))
		tx.HSet([]byte("c1"), []byte("3"), []byte("value1"))
		tx.Rollback()
	}

	info := new(BinLogAnchor)
	info.LogFileIndex = 1
	info.LogPos = 0
	var buf bytes.Buffer
	var n int

	for {
		buf.Reset()
		n, err = master.ReadEventsTo(info, &buf)
		if err != nil {
			t.Fatal(err)
		} else if info.LogFileIndex == -1 {
			t.Fatal("invalid log file index -1")
		} else if info.LogFileIndex == 0 {
			t.Fatal("invalid log file index 0")
		} else {
			if err = slave.ReplicateFromReader(&buf); err != nil {
				t.Fatal(err)
			}
			if n == 0 {
				break
			}
		}
	}

	if err = checkLedisEqual(master, slave); err != nil {
		t.Fatal(err)
	}
}
Example #22
0
func main() {
	runtime.GOMAXPROCS(runtime.NumCPU())

	flag.Parse()

	var cfg *config.Config
	var err error

	if len(*configFile) == 0 {
		println("no config set, using default config")
		cfg = config.NewConfigDefault()
	} else {
		cfg, err = config.NewConfigWithFile(*configFile)
	}

	if err != nil {
		println(err.Error())
		return
	}

	if len(*addr) > 0 {
		cfg.Addr = *addr
	}

	if len(*dataDir) > 0 {
		cfg.DataDir = *dataDir
	}

	if len(*dbName) > 0 {
		cfg.DBName = *dbName
	}

	if *databases > 0 {
		cfg.Databases = *databases
	}

	// check bool flag, use it.
	for _, arg := range os.Args {
		arg := strings.ToLower(arg)
		switch arg {
		case "-rpl", "-rpl=true", "-rpl=false":
			cfg.UseReplication = *rpl
		case "-readonly", "-readonly=true", "-readonly=false":
			cfg.Readonly = *readonly
		case "-rpl_sync", "-rpl_sync=true", "-rpl_sync=false":
			cfg.Replication.Sync = *rplSync
		}
	}

	if len(*slaveof) > 0 {
		cfg.SlaveOf = *slaveof
		cfg.Readonly = true
		cfg.UseReplication = true
	}

	if *ttlCheck > 0 {
		cfg.TTLCheckInterval = *ttlCheck
	}

	var app *server.App
	app, err = server.NewApp(cfg)
	if err != nil {
		println(err.Error())
		return
	}

	sc := make(chan os.Signal, 1)
	signal.Notify(sc,
		os.Kill,
		os.Interrupt,
		syscall.SIGHUP,
		syscall.SIGINT,
		syscall.SIGTERM,
		syscall.SIGQUIT)

	if *usePprof {
		go func() {
			log.Println(http.ListenAndServe(fmt.Sprintf(":%d", *pprofPort), nil))
		}()
	}

	go app.Run()

	<-sc

	println("ledis-server is closing")
	app.Close()
	println("ledis-server is closed")
}
Example #23
0
func TestReplication(t *testing.T) {
	data_dir := "/tmp/test_replication"
	os.RemoveAll(data_dir)

	masterCfg := new(config.Config)
	masterCfg.DataDir = fmt.Sprintf("%s/master", data_dir)
	masterCfg.Addr = "127.0.0.1:11182"
	masterCfg.BinLog.MaxFileSize = 1 * 1024 * 1024
	masterCfg.BinLog.MaxFileNum = 10

	var master *App
	var slave *App
	var err error
	master, err = NewApp(masterCfg)
	if err != nil {
		t.Fatal(err)
	}
	defer master.Close()

	slaveCfg := new(config.Config)
	slaveCfg.DataDir = fmt.Sprintf("%s/slave", data_dir)
	slaveCfg.Addr = "127.0.0.1:11183"
	slaveCfg.SlaveOf = masterCfg.Addr

	slave, err = NewApp(slaveCfg)
	if err != nil {
		t.Fatal(err)
	}
	defer slave.Close()

	go master.Run()

	db, _ := master.ldb.Select(0)

	value := make([]byte, 10)

	db.Set([]byte("a"), value)
	db.Set([]byte("b"), value)
	db.HSet([]byte("a"), []byte("1"), value)
	db.HSet([]byte("b"), []byte("2"), value)

	go slave.Run()

	time.Sleep(1 * time.Second)

	if err = checkDataEqual(master, slave); err != nil {
		t.Fatal(err)
	}

	db.Set([]byte("a1"), value)
	db.Set([]byte("b1"), value)
	db.HSet([]byte("a1"), []byte("1"), value)
	db.HSet([]byte("b1"), []byte("2"), value)

	time.Sleep(1 * time.Second)
	if err = checkDataEqual(master, slave); err != nil {
		t.Fatal(err)
	}

	slave.slaveof("")

	db.Set([]byte("a2"), value)
	db.Set([]byte("b2"), value)
	db.HSet([]byte("a2"), []byte("1"), value)
	db.HSet([]byte("b2"), []byte("2"), value)

	db.Set([]byte("a3"), value)
	db.Set([]byte("b3"), value)
	db.HSet([]byte("a3"), []byte("1"), value)
	db.HSet([]byte("b3"), []byte("2"), value)

	if err = checkDataEqual(master, slave); err == nil {
		t.Fatal("must error")
	}

	slave.slaveof(masterCfg.Addr)
	time.Sleep(1 * time.Second)

	if err = checkDataEqual(master, slave); err != nil {
		t.Fatal(err)
	}

}
Example #24
0
func TestLuaCall(t *testing.T) {
	cfg := new(config.Config)
	cfg.Addr = ":11188"
	cfg.DataDir = "/tmp/testscript"
	cfg.DBName = "memory"

	app, e := NewApp(cfg)
	if e != nil {
		t.Fatal(e)
	}
	go app.Run()

	defer app.Close()

	db, _ := app.ldb.Select(0)
	m, _ := db.Multi()
	defer m.Close()

	luaClient := app.s.c
	luaClient.db = m.DB
	luaClient.script = m

	l := app.s.l

	err := app.s.l.DoString(testScript1)
	if err != nil {
		t.Fatal(err)
	}

	v := luaReplyToLedisReply(l)
	if vv, ok := v.([]interface{}); ok {
		if len(vv) != 3 {
			t.Fatal(len(vv))
		}
	} else {
		t.Fatal(fmt.Sprintf("%v %T", v, v))
	}

	err = app.s.l.DoString(testScript2)
	if err != nil {
		t.Fatal(err)
	}

	v = luaReplyToLedisReply(l)
	if vv := v.(string); vv != "PONG" {
		t.Fatal(fmt.Sprintf("%v %T", v, v))
	}

	err = app.s.l.DoString(testScript3)
	if err != nil {
		t.Fatal(err)
	}

	if v, err := db.Get([]byte("1")); err != nil {
		t.Fatal(err)
	} else if string(v) != "a" {
		t.Fatal(string(v))
	}

	err = app.s.l.DoString(testScript4)
	if err != nil {
		t.Fatal(err)
	}

	if luaClient.db.Index() != 2 {
		t.Fatal(luaClient.db.Index())
	}

	db2, _ := app.ldb.Select(2)
	if v, err := db2.Get([]byte("2")); err != nil {
		t.Fatal(err)
	} else if string(v) != "b" {
		t.Fatal(string(v))
	}

	luaClient.db = nil
}