mirror of
https://github.com/seaweedfs/seaweedfs.git
synced 2024-12-12 00:19:14 +08:00
316 lines
11 KiB
Go
316 lines
11 KiB
Go
package command
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import (
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"fmt"
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"net/http"
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"os"
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"path"
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"strings"
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"time"
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hashicorpRaft "github.com/hashicorp/raft"
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"golang.org/x/exp/slices"
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"github.com/gorilla/mux"
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"github.com/seaweedfs/raft/protobuf"
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"github.com/spf13/viper"
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"google.golang.org/grpc/reflection"
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stats_collect "github.com/seaweedfs/seaweedfs/weed/stats"
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"github.com/seaweedfs/seaweedfs/weed/util/grace"
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"github.com/seaweedfs/seaweedfs/weed/glog"
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"github.com/seaweedfs/seaweedfs/weed/pb"
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"github.com/seaweedfs/seaweedfs/weed/pb/master_pb"
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"github.com/seaweedfs/seaweedfs/weed/security"
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weed_server "github.com/seaweedfs/seaweedfs/weed/server"
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"github.com/seaweedfs/seaweedfs/weed/storage/backend"
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"github.com/seaweedfs/seaweedfs/weed/util"
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)
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var (
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m MasterOptions
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)
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type MasterOptions struct {
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port *int
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portGrpc *int
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ip *string
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ipBind *string
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metaFolder *string
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peers *string
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volumeSizeLimitMB *uint
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volumePreallocate *bool
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// pulseSeconds *int
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defaultReplication *string
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garbageThreshold *float64
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whiteList *string
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disableHttp *bool
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metricsAddress *string
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metricsIntervalSec *int
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raftResumeState *bool
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metricsHttpPort *int
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heartbeatInterval *time.Duration
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electionTimeout *time.Duration
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raftHashicorp *bool
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raftBootstrap *bool
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}
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func init() {
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cmdMaster.Run = runMaster // break init cycle
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m.port = cmdMaster.Flag.Int("port", 9333, "http listen port")
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m.portGrpc = cmdMaster.Flag.Int("port.grpc", 0, "grpc listen port")
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m.ip = cmdMaster.Flag.String("ip", util.DetectedHostAddress(), "master <ip>|<server> address, also used as identifier")
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m.ipBind = cmdMaster.Flag.String("ip.bind", "", "ip address to bind to. If empty, default to same as -ip option.")
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m.metaFolder = cmdMaster.Flag.String("mdir", os.TempDir(), "data directory to store meta data")
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m.peers = cmdMaster.Flag.String("peers", "", "all master nodes in comma separated ip:port list, example: 127.0.0.1:9093,127.0.0.1:9094,127.0.0.1:9095")
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m.volumeSizeLimitMB = cmdMaster.Flag.Uint("volumeSizeLimitMB", 30*1000, "Master stops directing writes to oversized volumes.")
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m.volumePreallocate = cmdMaster.Flag.Bool("volumePreallocate", false, "Preallocate disk space for volumes.")
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// m.pulseSeconds = cmdMaster.Flag.Int("pulseSeconds", 5, "number of seconds between heartbeats")
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m.defaultReplication = cmdMaster.Flag.String("defaultReplication", "", "Default replication type if not specified.")
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m.garbageThreshold = cmdMaster.Flag.Float64("garbageThreshold", 0.3, "threshold to vacuum and reclaim spaces")
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m.whiteList = cmdMaster.Flag.String("whiteList", "", "comma separated Ip addresses having write permission. No limit if empty.")
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m.disableHttp = cmdMaster.Flag.Bool("disableHttp", false, "disable http requests, only gRPC operations are allowed.")
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m.metricsAddress = cmdMaster.Flag.String("metrics.address", "", "Prometheus gateway address <host>:<port>")
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m.metricsIntervalSec = cmdMaster.Flag.Int("metrics.intervalSeconds", 15, "Prometheus push interval in seconds")
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m.metricsHttpPort = cmdMaster.Flag.Int("metricsPort", 0, "Prometheus metrics listen port")
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m.raftResumeState = cmdMaster.Flag.Bool("resumeState", false, "resume previous state on start master server")
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m.heartbeatInterval = cmdMaster.Flag.Duration("heartbeatInterval", 300*time.Millisecond, "heartbeat interval of master servers, and will be randomly multiplied by [1, 1.25)")
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m.electionTimeout = cmdMaster.Flag.Duration("electionTimeout", 10*time.Second, "election timeout of master servers")
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m.raftHashicorp = cmdMaster.Flag.Bool("raftHashicorp", false, "use hashicorp raft")
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m.raftBootstrap = cmdMaster.Flag.Bool("raftBootstrap", false, "Whether to bootstrap the Raft cluster")
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}
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var cmdMaster = &Command{
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UsageLine: "master -port=9333",
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Short: "start a master server",
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Long: `start a master server to provide volume=>location mapping service and sequence number of file ids
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The configuration file "security.toml" is read from ".", "$HOME/.seaweedfs/", "/usr/local/etc/seaweedfs/", or "/etc/seaweedfs/", in that order.
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The example security.toml configuration file can be generated by "weed scaffold -config=security"
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`,
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}
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var (
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masterCpuProfile = cmdMaster.Flag.String("cpuprofile", "", "cpu profile output file")
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masterMemProfile = cmdMaster.Flag.String("memprofile", "", "memory profile output file")
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)
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func runMaster(cmd *Command, args []string) bool {
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util.LoadConfiguration("security", false)
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util.LoadConfiguration("master", false)
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grace.SetupProfiling(*masterCpuProfile, *masterMemProfile)
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parent, _ := util.FullPath(*m.metaFolder).DirAndName()
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if util.FileExists(string(parent)) && !util.FileExists(*m.metaFolder) {
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os.MkdirAll(*m.metaFolder, 0755)
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}
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if err := util.TestFolderWritable(util.ResolvePath(*m.metaFolder)); err != nil {
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glog.Fatalf("Check Meta Folder (-mdir) Writable %s : %s", *m.metaFolder, err)
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}
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masterWhiteList := util.StringSplit(*m.whiteList, ",")
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if *m.volumeSizeLimitMB > util.VolumeSizeLimitGB*1000 {
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glog.Fatalf("volumeSizeLimitMB should be smaller than 30000")
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}
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go stats_collect.StartMetricsServer(*m.ipBind, *m.metricsHttpPort)
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startMaster(m, masterWhiteList)
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return true
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}
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func startMaster(masterOption MasterOptions, masterWhiteList []string) {
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backend.LoadConfiguration(util.GetViper())
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if *masterOption.portGrpc == 0 {
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*masterOption.portGrpc = 10000 + *masterOption.port
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}
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if *masterOption.ipBind == "" {
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*masterOption.ipBind = *masterOption.ip
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}
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myMasterAddress, peers := checkPeers(*masterOption.ip, *masterOption.port, *masterOption.portGrpc, *masterOption.peers)
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masterPeers := make(map[string]pb.ServerAddress)
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for _, peer := range peers {
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masterPeers[string(peer)] = peer
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}
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r := mux.NewRouter()
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ms := weed_server.NewMasterServer(r, masterOption.toMasterOption(masterWhiteList), masterPeers)
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listeningAddress := util.JoinHostPort(*masterOption.ipBind, *masterOption.port)
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glog.V(0).Infof("Start Seaweed Master %s at %s", util.Version(), listeningAddress)
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masterListener, masterLocalListener, e := util.NewIpAndLocalListeners(*masterOption.ipBind, *masterOption.port, 0)
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if e != nil {
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glog.Fatalf("Master startup error: %v", e)
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}
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// start raftServer
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metaDir := path.Join(*masterOption.metaFolder, fmt.Sprintf("m%d", *masterOption.port))
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raftServerOption := &weed_server.RaftServerOption{
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GrpcDialOption: security.LoadClientTLS(util.GetViper(), "grpc.master"),
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Peers: masterPeers,
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ServerAddr: myMasterAddress,
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DataDir: util.ResolvePath(metaDir),
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Topo: ms.Topo,
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RaftResumeState: *masterOption.raftResumeState,
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HeartbeatInterval: *masterOption.heartbeatInterval,
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ElectionTimeout: *masterOption.electionTimeout,
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RaftBootstrap: *masterOption.raftBootstrap,
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}
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var raftServer *weed_server.RaftServer
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var err error
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if *masterOption.raftHashicorp {
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if raftServer, err = weed_server.NewHashicorpRaftServer(raftServerOption); err != nil {
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glog.Fatalf("NewHashicorpRaftServer: %s", err)
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}
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} else {
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raftServer, err = weed_server.NewRaftServer(raftServerOption)
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if raftServer == nil {
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glog.Fatalf("please verify %s is writable, see https://github.com/seaweedfs/seaweedfs/issues/717: %s", *masterOption.metaFolder, err)
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}
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}
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ms.SetRaftServer(raftServer)
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r.HandleFunc("/cluster/status", raftServer.StatusHandler).Methods("GET")
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r.HandleFunc("/cluster/healthz", raftServer.HealthzHandler).Methods("GET", "HEAD")
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if *masterOption.raftHashicorp {
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r.HandleFunc("/raft/stats", raftServer.StatsRaftHandler).Methods("GET")
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}
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// starting grpc server
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grpcPort := *masterOption.portGrpc
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grpcL, grpcLocalL, err := util.NewIpAndLocalListeners(*masterOption.ipBind, grpcPort, 0)
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if err != nil {
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glog.Fatalf("master failed to listen on grpc port %d: %v", grpcPort, err)
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}
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grpcS := pb.NewGrpcServer(security.LoadServerTLS(util.GetViper(), "grpc.master"))
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master_pb.RegisterSeaweedServer(grpcS, ms)
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if *masterOption.raftHashicorp {
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raftServer.TransportManager.Register(grpcS)
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} else {
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protobuf.RegisterRaftServer(grpcS, raftServer)
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}
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reflection.Register(grpcS)
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glog.V(0).Infof("Start Seaweed Master %s grpc server at %s:%d", util.Version(), *masterOption.ipBind, grpcPort)
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if grpcLocalL != nil {
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go grpcS.Serve(grpcLocalL)
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}
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go grpcS.Serve(grpcL)
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timeSleep := 1500 * time.Millisecond
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if !*masterOption.raftHashicorp {
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go func() {
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time.Sleep(timeSleep)
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ms.Topo.RaftServerAccessLock.RLock()
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isEmptyMaster := ms.Topo.RaftServer.Leader() == "" && ms.Topo.RaftServer.IsLogEmpty()
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if isEmptyMaster && isTheFirstOne(myMasterAddress, peers) && ms.MasterClient.FindLeaderFromOtherPeers(myMasterAddress) == "" {
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raftServer.DoJoinCommand()
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}
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ms.Topo.RaftServerAccessLock.RUnlock()
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}()
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}
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go ms.MasterClient.KeepConnectedToMaster()
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// start http server
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var (
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clientCertFile,
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certFile,
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keyFile string
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)
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useTLS := false
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useMTLS := false
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if viper.GetString("https.master.key") != "" {
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useTLS = true
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certFile = viper.GetString("https.master.cert")
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keyFile = viper.GetString("https.master.key")
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}
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if viper.GetString("https.master.ca") != "" {
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useMTLS = true
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clientCertFile = viper.GetString("https.master.ca")
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}
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httpS := &http.Server{Handler: r}
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if masterLocalListener != nil {
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go httpS.Serve(masterLocalListener)
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}
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if useMTLS {
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httpS.TLSConfig = security.LoadClientTLSHTTP(clientCertFile)
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}
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if useTLS {
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go httpS.ServeTLS(masterListener, certFile, keyFile)
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} else {
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go httpS.Serve(masterListener)
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}
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grace.OnInterrupt(ms.Shutdown)
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grace.OnInterrupt(grpcS.Stop)
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grace.OnReload(func() {
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if ms.Topo.HashicorpRaft != nil && ms.Topo.HashicorpRaft.State() == hashicorpRaft.Leader {
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ms.Topo.HashicorpRaft.LeadershipTransfer()
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}
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})
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select {}
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}
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func checkPeers(masterIp string, masterPort int, masterGrpcPort int, peers string) (masterAddress pb.ServerAddress, cleanedPeers []pb.ServerAddress) {
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glog.V(0).Infof("current: %s:%d peers:%s", masterIp, masterPort, peers)
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masterAddress = pb.NewServerAddress(masterIp, masterPort, masterGrpcPort)
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cleanedPeers = pb.ServerAddresses(peers).ToAddresses()
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hasSelf := false
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for _, peer := range cleanedPeers {
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if peer.ToHttpAddress() == masterAddress.ToHttpAddress() {
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hasSelf = true
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break
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}
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}
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if !hasSelf {
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cleanedPeers = append(cleanedPeers, masterAddress)
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}
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if len(cleanedPeers)%2 == 0 {
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glog.Fatalf("Only odd number of masters are supported: %+v", cleanedPeers)
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}
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return
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}
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func isTheFirstOne(self pb.ServerAddress, peers []pb.ServerAddress) bool {
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slices.SortFunc(peers, func(a, b pb.ServerAddress) bool {
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return strings.Compare(string(a), string(b)) < 0
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})
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if len(peers) <= 0 {
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return true
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}
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return self == peers[0]
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}
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func (m *MasterOptions) toMasterOption(whiteList []string) *weed_server.MasterOption {
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masterAddress := pb.NewServerAddress(*m.ip, *m.port, *m.portGrpc)
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return &weed_server.MasterOption{
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Master: masterAddress,
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MetaFolder: *m.metaFolder,
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VolumeSizeLimitMB: uint32(*m.volumeSizeLimitMB),
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VolumePreallocate: *m.volumePreallocate,
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// PulseSeconds: *m.pulseSeconds,
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DefaultReplicaPlacement: *m.defaultReplication,
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GarbageThreshold: *m.garbageThreshold,
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WhiteList: whiteList,
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DisableHttp: *m.disableHttp,
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MetricsAddress: *m.metricsAddress,
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MetricsIntervalSec: *m.metricsIntervalSec,
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}
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}
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