package command import ( "context" "fmt" "strconv" "time" "google.golang.org/grpc/reflection" "github.com/chrislusf/seaweedfs/weed/util/grace" "github.com/chrislusf/seaweedfs/weed/glog" "github.com/chrislusf/seaweedfs/weed/messaging/broker" "github.com/chrislusf/seaweedfs/weed/pb" "github.com/chrislusf/seaweedfs/weed/pb/filer_pb" "github.com/chrislusf/seaweedfs/weed/pb/messaging_pb" "github.com/chrislusf/seaweedfs/weed/security" "github.com/chrislusf/seaweedfs/weed/util" ) var ( messageBrokerStandaloneOptions MessageBrokerOptions ) type MessageBrokerOptions struct { filer *string ip *string port *int cpuprofile *string memprofile *string } func init() { cmdMsgBroker.Run = runMsgBroker // break init cycle messageBrokerStandaloneOptions.filer = cmdMsgBroker.Flag.String("filer", "localhost:8888", "filer server address") messageBrokerStandaloneOptions.ip = cmdMsgBroker.Flag.String("ip", util.DetectedHostAddress(), "broker host address") messageBrokerStandaloneOptions.port = cmdMsgBroker.Flag.Int("port", 17777, "broker gRPC listen port") messageBrokerStandaloneOptions.cpuprofile = cmdMsgBroker.Flag.String("cpuprofile", "", "cpu profile output file") messageBrokerStandaloneOptions.memprofile = cmdMsgBroker.Flag.String("memprofile", "", "memory profile output file") } var cmdMsgBroker = &Command{ UsageLine: "msgBroker [-port=17777] [-filer=]", Short: "start a message queue broker", Long: `start a message queue broker The broker can accept gRPC calls to write or read messages. The messages are stored via filer. The brokers are stateless. To scale up, just add more brokers. `, } func runMsgBroker(cmd *Command, args []string) bool { util.LoadConfiguration("security", false) return messageBrokerStandaloneOptions.startQueueServer() } func (msgBrokerOpt *MessageBrokerOptions) startQueueServer() bool { grace.SetupProfiling(*messageBrokerStandaloneOptions.cpuprofile, *messageBrokerStandaloneOptions.memprofile) filerGrpcAddress, err := pb.ParseServerToGrpcAddress(*msgBrokerOpt.filer) if err != nil { glog.Fatal(err) return false } grpcDialOption := security.LoadClientTLS(util.GetViper(), "grpc.msg_broker") cipher := false for { err = pb.WithGrpcFilerClient(filerGrpcAddress, grpcDialOption, func(client filer_pb.SeaweedFilerClient) error { resp, err := client.GetFilerConfiguration(context.Background(), &filer_pb.GetFilerConfigurationRequest{}) if err != nil { return fmt.Errorf("get filer %s configuration: %v", filerGrpcAddress, err) } cipher = resp.Cipher return nil }) if err != nil { glog.V(0).Infof("wait to connect to filer %s grpc address %s", *msgBrokerOpt.filer, filerGrpcAddress) time.Sleep(time.Second) } else { glog.V(0).Infof("connected to filer %s grpc address %s", *msgBrokerOpt.filer, filerGrpcAddress) break } } qs, err := broker.NewMessageBroker(&broker.MessageBrokerOption{ Filers: []string{*msgBrokerOpt.filer}, DefaultReplication: "", MaxMB: 0, Ip: *msgBrokerOpt.ip, Port: *msgBrokerOpt.port, Cipher: cipher, }, grpcDialOption) // start grpc listener grpcL, err := util.NewListener(":"+strconv.Itoa(*msgBrokerOpt.port), 0) if err != nil { glog.Fatalf("failed to listen on grpc port %d: %v", *msgBrokerOpt.port, err) } grpcS := pb.NewGrpcServer(security.LoadServerTLS(util.GetViper(), "grpc.msg_broker")) messaging_pb.RegisterSeaweedMessagingServer(grpcS, qs) reflection.Register(grpcS) grpcS.Serve(grpcL) return true }