Exemplo n.º 1
0
func (s *Server) resetSchemaInfo() error {
	for _, c := range s.clients {
		if len(c.txConns) > 0 {
			return errors.Errorf("transaction exist")
		}
	}

	cfg, err := config.ParseConfigFile(s.configFile)
	if err != nil {
		log.Error(err)
		return err
	}

	s.cleanup()
	s.autoSchamas = make(map[string]*tabletserver.SchemaInfo)
	for _, n := range s.shards {
		n.Close()
	}

	s.shards = nil
	s.schemas = nil

	log.Warningf("%#v", cfg)

	log.SetLevelByString(cfg.LogLevel)

	s.cfg = cfg
	return s.loadSchemaInfo()
}
Exemplo n.º 2
0
func main() {
	runtime.GOMAXPROCS(runtime.NumCPU())

	flag.Parse()

	if len(*configFile) == 0 {
		log.Error("must use a config file")
		return
	}

	cfg, err := config.ParseConfigFile(*configFile)
	if err != nil {
		log.Error(err.Error())
		return
	}

	log.SetLevelByString(cfg.LogLevel)

	log.CrashLog("./cm-proxy.dump")

	var svr *proxy.Server
	svr, err = proxy.NewServer(*configFile)
	if err != nil {
		log.Error(err.Error())
		return
	}

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

	go func() {
		sig := <-sc
		log.Infof("Got signal [%d] to exit.", sig)
		svr.Close()
		os.Exit(0)
	}()

	go svr.Run()

	http.HandleFunc("/api/reload", svr.HandleReload)
	//todo: using configuration
	http.ListenAndServe(":8888", nil)
}
Exemplo n.º 3
0
func makeServer(configFile string) *Server {
	cfg, err := config.ParseConfigFile(configFile)
	if err != nil {
		log.Error(err.Error())
		return nil
	}

	log.Warningf("%#v", cfg)

	s := &Server{
		configFile:        configFile,
		cfg:               cfg,
		addr:              cfg.Addr,
		user:              cfg.User,
		password:          cfg.Password,
		autoSchamas:       make(map[string]*tabletserver.SchemaInfo),
		taskQ:             make(chan *execTask, 100),
		concurrentLimiter: tokenlimiter.NewTokenLimiter(100),
		counter:           stats.NewCounters("stats"),
		rwlock:            &sync.RWMutex{},
		clients:           make(map[uint32]*Conn),
	}

	f := func(wg *sync.WaitGroup, rs []interface{}, i int, co *mysql.SqlConn, sql string, args []interface{}) {
		r, err := co.Execute(sql, args...)
		if err != nil {
			log.Warning(err)
			rs[i] = err
		} else {
			rs[i] = r
		}

		wg.Done()
	}

	for i := 0; i < 100; i++ {
		go func() {
			for task := range s.taskQ {
				f(task.wg, task.rs, task.idx, task.co, task.sql, task.args)
			}
		}()
	}

	return s
}