Example #1
0
// TestGRPCDiscovery tests the discovery gateway with a gRPC
// connection from the gateway to the fake tablet.
func TestGRPCDiscovery(t *testing.T) {
	flag.Set("tablet_protocol", "grpc")
	flag.Set("gateway_implementation", "discoverygateway")

	// Fake services for the tablet, topo server.
	service, ts, cell := CreateFakeServers(t)

	// Tablet: listen on a random port.
	listener, err := net.Listen("tcp", ":0")
	if err != nil {
		t.Fatalf("Cannot listen: %v", err)
	}
	host := listener.Addr().(*net.TCPAddr).IP.String()
	port := listener.Addr().(*net.TCPAddr).Port
	defer listener.Close()

	// Tablet: create a gRPC server and listen on the port.
	server := grpc.NewServer()
	grpcqueryservice.Register(server, service)
	go server.Serve(listener)
	defer server.Stop()

	// VTGate: create the discovery healthcheck, and the gateway.
	// Wait for the right tablets to be present.
	hc := discovery.NewHealthCheck(30*time.Second, 10*time.Second, 2*time.Minute)
	dg := gateway.GetCreator()(hc, ts, ts, cell, 2)
	hc.AddTablet(&topodatapb.Tablet{
		Alias: &topodatapb.TabletAlias{
			Cell: cell,
			Uid:  43,
		},
		Keyspace: tabletconntest.TestTarget.Keyspace,
		Shard:    tabletconntest.TestTarget.Shard,
		Type:     tabletconntest.TestTarget.TabletType,
		Hostname: host,
		PortMap: map[string]int32{
			"grpc": int32(port),
		},
	}, "test_tablet")
	err = gateway.WaitForTablets(dg, []topodatapb.TabletType{tabletconntest.TestTarget.TabletType})
	if err != nil {
		t.Fatalf("WaitForTablets failed: %v", err)
	}
	defer dg.Close(context.Background())

	// run the test suite.
	TestSuite(t, "discovery-grpc", dg, service)

	// run it again with vtgate combining Begin and Execute
	flag.Set("tablet_grpc_combine_begin_execute", "true")
	TestSuite(t, "discovery-grpc-combo", dg, service)
}
Example #2
0
// NewScatterConn creates a new ScatterConn. All input parameters are passed through
// for creating the appropriate connections.
func NewScatterConn(hc discovery.HealthCheck, topoServer topo.Server, serv topo.SrvTopoServer, statsName, cell string, retryCount int, tabletTypesToWait []topodatapb.TabletType) *ScatterConn {
	tabletCallErrorCountStatsName := ""
	if statsName != "" {
		tabletCallErrorCountStatsName = statsName + "ErrorCount"
	}
	gw := gateway.GetCreator()(hc, topoServer, serv, cell, retryCount)
	gateway.WaitForTablets(gw, tabletTypesToWait)

	return &ScatterConn{
		timings:              stats.NewMultiTimings(statsName, []string{"Operation", "Keyspace", "ShardName", "DbType"}),
		tabletCallErrorCount: stats.NewMultiCounters(tabletCallErrorCountStatsName, []string{"Operation", "Keyspace", "ShardName", "DbType"}),
		gateway:              gw,
	}
}
Example #3
0
// Init creates the single L2VTGate with the provided parameters.
func Init(hc discovery.HealthCheck, topoServer topo.Server, serv topo.SrvTopoServer, cell string, retryCount int, tabletTypesToWait []topodatapb.TabletType) *L2VTGate {
	if l2VTGate != nil {
		log.Fatalf("L2VTGate already initialized")
	}

	gw := gateway.GetCreator()(hc, topoServer, serv, cell, retryCount)
	gateway.WaitForTablets(gw, tabletTypesToWait)
	l2VTGate = &L2VTGate{
		gateway: gw,
	}
	servenv.OnRun(func() {
		for _, f := range RegisterL2VTGates {
			f(l2VTGate)
		}
	})
	return l2VTGate
}
Example #4
0
// Init creates the single L2VTGate with the provided parameters.
func Init(hc discovery.HealthCheck, topoServer topo.Server, serv topo.SrvTopoServer, statsName, cell string, retryCount int, tabletTypesToWait []topodatapb.TabletType) *L2VTGate {
	if l2VTGate != nil {
		log.Fatalf("L2VTGate already initialized")
	}

	tabletCallErrorCountStatsName := ""
	if statsName != "" {
		tabletCallErrorCountStatsName = statsName + "ErrorCount"
	}

	gw := gateway.GetCreator()(hc, topoServer, serv, cell, retryCount)
	gateway.WaitForTablets(gw, tabletTypesToWait)
	l2VTGate = &L2VTGate{
		timings:              stats.NewMultiTimings(statsName, []string{"Operation", "Keyspace", "ShardName", "DbType"}),
		tabletCallErrorCount: stats.NewMultiCounters(tabletCallErrorCountStatsName, []string{"Operation", "Keyspace", "ShardName", "DbType"}),
		gateway:              gw,
	}
	servenv.OnRun(func() {
		for _, f := range RegisterL2VTGates {
			f(l2VTGate)
		}
	})
	return l2VTGate
}