Merge pull request #2661 from garenchan/ck-dev1

weed/command/master.go

@@ -44,6 +44,8 @@ type MasterOptions struct {
 	metricsIntervalSec *int
 	raftResumeState    *bool
 	metricsHttpPort    *int
+	heartbeatInterval  *time.Duration
+	electionTimeout    *time.Duration
 }
 
 func init() {
@@ -65,6 +67,8 @@ func init() {
 	m.metricsIntervalSec = cmdMaster.Flag.Int("metrics.intervalSeconds", 15, "Prometheus push interval in seconds")
 	m.metricsHttpPort = cmdMaster.Flag.Int("metricsPort", 0, "Prometheus metrics listen port")
 	m.raftResumeState = cmdMaster.Flag.Bool("resumeState", false, "resume previous state on start master server")
+	m.heartbeatInterval = cmdMaster.Flag.Duration("heartbeatInterval", 300*time.Millisecond, "heartbeat interval of master servers, and will be randomly multiplied by [1, 1.25)")
+	m.electionTimeout = cmdMaster.Flag.Duration("electionTimeout", 10*time.Second, "election timeout of master servers")
 }
 
 var cmdMaster = &Command{
@@ -132,8 +136,17 @@ func startMaster(masterOption MasterOptions, masterWhiteList []string) {
 		glog.Fatalf("Master startup error: %v", e)
 	}
 	// start raftServer
-	raftServer, err := weed_server.NewRaftServer(security.LoadClientTLS(util.GetViper(), "grpc.master"),
-		peers, myMasterAddress, util.ResolvePath(*masterOption.metaFolder), ms.Topo, *masterOption.raftResumeState)
+	raftServerOption := &weed_server.RaftServerOption{
+		GrpcDialOption:    security.LoadClientTLS(util.GetViper(), "grpc.master"),
+		Peers:             peers,
+		ServerAddr:        myMasterAddress,
+		DataDir:           util.ResolvePath(*masterOption.metaFolder),
+		Topo:              ms.Topo,
+		RaftResumeState:   *masterOption.raftResumeState,
+		HeartbeatInterval: *masterOption.heartbeatInterval,
+		ElectionTimeout:   *masterOption.electionTimeout,
+	}
+	raftServer, err := weed_server.NewRaftServer(raftServerOption)
 	if raftServer == nil {
 		glog.Fatalf("please verify %s is writable, see https://github.com/chrislusf/seaweedfs/issues/717: %s", *masterOption.metaFolder, err)
 	}

weed/command/server.go

@@ -98,6 +98,8 @@ func init() {
 	masterOptions.metricsAddress = cmdServer.Flag.String("metrics.address", "", "Prometheus gateway address")
 	masterOptions.metricsIntervalSec = cmdServer.Flag.Int("metrics.intervalSeconds", 15, "Prometheus push interval in seconds")
 	masterOptions.raftResumeState = cmdServer.Flag.Bool("resumeState", false, "resume previous state on start master server")
+	masterOptions.heartbeatInterval = cmdServer.Flag.Duration("master.heartbeatInterval", 300*time.Millisecond, "heartbeat interval of master servers, and will be randomly multiplied by [1, 1.25)")
+	masterOptions.electionTimeout = cmdServer.Flag.Duration("master.electionTimeout", 10*time.Second, "election timeout of master servers")
 
 	filerOptions.collection = cmdServer.Flag.String("filer.collection", "", "all data will be stored in this collection")
 	filerOptions.port = cmdServer.Flag.Int("filer.port", 8888, "filer server http listen port")

weed/server/raft_server.go

@@ -19,6 +19,17 @@ import (
 	"github.com/chrislusf/seaweedfs/weed/topology"
 )
 
+type RaftServerOption struct {
+	GrpcDialOption    grpc.DialOption
+	Peers             []pb.ServerAddress
+	ServerAddr        pb.ServerAddress
+	DataDir           string
+	Topo              *topology.Topology
+	RaftResumeState   bool
+	HeartbeatInterval time.Duration
+	ElectionTimeout   time.Duration
+}
+
 type RaftServer struct {
 	peers      []pb.ServerAddress // initial peers to join with
 	raftServer raft.Server
@@ -52,12 +63,12 @@ func (s StateMachine) Recovery(data []byte) error {
 	return nil
 }
 
-func NewRaftServer(grpcDialOption grpc.DialOption, peers []pb.ServerAddress, serverAddr pb.ServerAddress, dataDir string, topo *topology.Topology, raftResumeState bool) (*RaftServer, error) {
+func NewRaftServer(option *RaftServerOption) (*RaftServer, error) {
 	s := &RaftServer{
-		peers:      peers,
-		serverAddr: serverAddr,
-		dataDir:    dataDir,
-		topo:       topo,
+		peers:      option.Peers,
+		serverAddr: option.ServerAddr,
+		dataDir:    option.DataDir,
+		topo:       option.Topo,
 	}
 
 	if glog.V(4) {
@@ -67,10 +78,10 @@ func NewRaftServer(grpcDialOption grpc.DialOption, peers []pb.ServerAddress, ser
 	raft.RegisterCommand(&topology.MaxVolumeIdCommand{})
 
 	var err error
-	transporter := raft.NewGrpcTransporter(grpcDialOption)
-	glog.V(0).Infof("Starting RaftServer with %v", serverAddr)
+	transporter := raft.NewGrpcTransporter(option.GrpcDialOption)
+	glog.V(0).Infof("Starting RaftServer with %v", option.ServerAddr)
 
-	if !raftResumeState {
+	if !option.RaftResumeState {
 		// always clear previous metadata
 		os.RemoveAll(path.Join(s.dataDir, "conf"))
 		os.RemoveAll(path.Join(s.dataDir, "log"))
@@ -80,14 +91,15 @@ func NewRaftServer(grpcDialOption grpc.DialOption, peers []pb.ServerAddress, ser
 		return nil, err
 	}
 
-	stateMachine := StateMachine{topo: topo}
-	s.raftServer, err = raft.NewServer(string(s.serverAddr), s.dataDir, transporter, stateMachine, topo, "")
+	stateMachine := StateMachine{topo: option.Topo}
+	s.raftServer, err = raft.NewServer(string(s.serverAddr), s.dataDir, transporter, stateMachine, option.Topo, "")
 	if err != nil {
 		glog.V(0).Infoln(err)
 		return nil, err
 	}
-	s.raftServer.SetHeartbeatInterval(time.Duration(300+rand.Intn(150)) * time.Millisecond)
-	s.raftServer.SetElectionTimeout(10 * time.Second)
+	heartbeatInterval := time.Duration(float64(option.HeartbeatInterval) * (rand.Float64()*0.25 + 1))
+	s.raftServer.SetHeartbeatInterval(heartbeatInterval)
+	s.raftServer.SetElectionTimeout(option.ElectionTimeout)
 	if err := s.raftServer.LoadSnapshot(); err != nil {
 		return nil, err
 	}
@@ -123,7 +135,7 @@ func NewRaftServer(grpcDialOption grpc.DialOption, peers []pb.ServerAddress, ser
 
 	s.GrpcServer = raft.NewGrpcServer(s.raftServer)
 
-	if s.raftServer.IsLogEmpty() && isTheFirstOne(serverAddr, s.peers) {
+	if s.raftServer.IsLogEmpty() && isTheFirstOne(option.ServerAddr, s.peers) {
 		// Initialize the server by joining itself.
 		// s.DoJoinCommand()
 	}