Пример #1
0
func initQueryService(dbcfgs dbconfigs.DBConfigs) {
	ts.SqlQueryLogger.ServeLogs("/debug/querylog")
	ts.TxLogger.ServeLogs("/debug/txlog")

	if err := jscfg.ReadJson(*qsConfigFile, &qsConfig); err != nil {
		relog.Warning("%s", err)
	}
	ts.RegisterQueryService(qsConfig)
	usefulLameDuckPeriod := float64(qsConfig.QueryTimeout + 1)
	if usefulLameDuckPeriod > *lameDuckPeriod {
		*lameDuckPeriod = usefulLameDuckPeriod
		relog.Info("readjusted -lame-duck-period to %f", *lameDuckPeriod)
	}
	if *queryLog != "" {
		if f, err := os.OpenFile(*queryLog, os.O_WRONLY|os.O_APPEND|os.O_CREATE, 0644); err == nil {
			ts.QueryLogger = relog.New(f, "", relog.DEBUG)
		} else {
			relog.Fatal("Error opening file %v: %v", *queryLog, err)
		}
	}
	umgmt.AddCloseCallback(func() {
		ts.DisallowQueries(true)
	})
}
Пример #2
0
func main() {
	flag.Parse()
	if err := servenv.Init("vtocc"); err != nil {
		relog.Fatal("Error in servenv.Init: %v", err)
	}
	if *queryLog != "" {
		if f, err := os.OpenFile(*queryLog, os.O_WRONLY|os.O_APPEND|os.O_CREATE, 0644); err == nil {
			ts.QueryLogger = relog.New(f, "", relog.DEBUG)
		} else {
			relog.Fatal("Error opening file %v: %v", *queryLog, err)
		}
	}
	ts.SqlQueryLogger.ServeLogs("/debug/querylog")
	ts.TxLogger.ServeLogs("/debug/txlog")
	unmarshalFile(*configFile, &config)
	data, _ := json.MarshalIndent(config, "", "  ")
	relog.Info("config: %s\n", data)

	unmarshalFile(*dbConfigFile, &dbconfig)
	relog.Info("dbconfig: %s\n", dbconfig)

	unmarshalFile(*overridesFile, &schemaOverrides)
	data, _ = json.MarshalIndent(schemaOverrides, "", "  ")
	relog.Info("schemaOverrides: %s\n", data)

	ts.RegisterQueryService(config)
	qrs := loadCustomRules()
	ts.AllowQueries(dbconfig, schemaOverrides, qrs)

	rpc.HandleHTTP()

	// NOTE(szopa): Changing credentials requires a server
	// restart.
	if *authConfig != "" {
		if err := auth.LoadCredentials(*authConfig); err != nil {
			relog.Error("could not load authentication credentials, not starting rpc servers: %v", err)
		}
		serveAuthRPC()
	}
	serveRPC()

	relog.Info("started vtocc %v", *port)

	// we delegate out startup to the micromanagement server so these actions
	// will occur after we have obtained our socket.
	usefulLameDuckPeriod := float64(config.QueryTimeout + 1)
	if usefulLameDuckPeriod > *lameDuckPeriod {
		*lameDuckPeriod = usefulLameDuckPeriod
		relog.Info("readjusted -lame-duck-period to %f", *lameDuckPeriod)
	}
	umgmt.SetLameDuckPeriod(float32(*lameDuckPeriod))
	umgmt.SetRebindDelay(float32(*rebindDelay))
	umgmt.AddStartupCallback(func() {
		umgmt.StartHttpServer(fmt.Sprintf(":%v", *port))
	})
	umgmt.AddStartupCallback(func() {
		c := make(chan os.Signal, 1)
		signal.Notify(c, syscall.SIGTERM)
		go func() {
			for sig := range c {
				umgmt.SigTermHandler(sig)
			}
		}()
	})
	umgmt.AddCloseCallback(func() {
		ts.DisallowQueries(true)
	})

	umgmtSocket := fmt.Sprintf("/tmp/vtocc-%08x-umgmt.sock", *port)
	if umgmtErr := umgmt.ListenAndServe(umgmtSocket); umgmtErr != nil {
		relog.Error("umgmt.ListenAndServe err: %v", umgmtErr)
	}
	relog.Info("done")
}