1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
|
package command
import (
"net/http"
"os"
"runtime"
"strconv"
"strings"
"time"
"github.com/chrislusf/seaweedfs/weed/glog"
"github.com/chrislusf/seaweedfs/weed/server"
"github.com/chrislusf/seaweedfs/weed/util"
"github.com/chrislusf/seaweedfs/weed/pb/master_pb"
"github.com/gorilla/mux"
"google.golang.org/grpc/reflection"
)
func init() {
cmdMaster.Run = runMaster // break init cycle
}
var cmdMaster = &Command{
UsageLine: "master -port=9333",
Short: "start a master server",
Long: `start a master server to provide volume=>location mapping service
and sequence number of file ids
`,
}
var (
mport = cmdMaster.Flag.Int("port", 9333, "http listen port")
mGrpcPort = cmdMaster.Flag.Int("port.grpc", 0, "grpc server listen port, default to http port + 10000")
masterIp = cmdMaster.Flag.String("ip", "localhost", "master <ip>|<server> address")
masterBindIp = cmdMaster.Flag.String("ip.bind", "0.0.0.0", "ip address to bind to")
metaFolder = cmdMaster.Flag.String("mdir", os.TempDir(), "data directory to store meta data")
masterPeers = cmdMaster.Flag.String("peers", "", "all master nodes in comma separated ip:port list, example: 127.0.0.1:9093,127.0.0.1:9094")
volumeSizeLimitMB = cmdMaster.Flag.Uint("volumeSizeLimitMB", 30*1000, "Master stops directing writes to oversized volumes.")
volumePreallocate = cmdMaster.Flag.Bool("volumePreallocate", false, "Preallocate disk space for volumes.")
mpulse = cmdMaster.Flag.Int("pulseSeconds", 5, "number of seconds between heartbeats")
defaultReplicaPlacement = cmdMaster.Flag.String("defaultReplication", "000", "Default replication type if not specified.")
// mTimeout = cmdMaster.Flag.Int("idleTimeout", 30, "connection idle seconds")
mMaxCpu = cmdMaster.Flag.Int("maxCpu", 0, "maximum number of CPUs. 0 means all available CPUs")
garbageThreshold = cmdMaster.Flag.Float64("garbageThreshold", 0.3, "threshold to vacuum and reclaim spaces")
masterWhiteListOption = cmdMaster.Flag.String("whiteList", "", "comma separated Ip addresses having write permission. No limit if empty.")
masterSecureKey = cmdMaster.Flag.String("secure.secret", "", "secret to encrypt Json Web Token(JWT)")
masterCpuProfile = cmdMaster.Flag.String("cpuprofile", "", "cpu profile output file")
masterMemProfile = cmdMaster.Flag.String("memprofile", "", "memory profile output file")
masterWhiteList []string
)
func runMaster(cmd *Command, args []string) bool {
if *mMaxCpu < 1 {
*mMaxCpu = runtime.NumCPU()
}
runtime.GOMAXPROCS(*mMaxCpu)
util.SetupProfiling(*masterCpuProfile, *masterMemProfile)
if err := util.TestFolderWritable(*metaFolder); err != nil {
glog.Fatalf("Check Meta Folder (-mdir) Writable %s : %s", *metaFolder, err)
}
if *masterWhiteListOption != "" {
masterWhiteList = strings.Split(*masterWhiteListOption, ",")
}
if *volumeSizeLimitMB > 30*1000 {
glog.Fatalf("volumeSizeLimitMB should be smaller than 30000")
}
r := mux.NewRouter()
ms := weed_server.NewMasterServer(r, *mport, *metaFolder,
*volumeSizeLimitMB, *volumePreallocate,
*mpulse, *defaultReplicaPlacement, *garbageThreshold,
masterWhiteList, *masterSecureKey,
)
listeningAddress := *masterBindIp + ":" + strconv.Itoa(*mport)
glog.V(0).Infoln("Start Seaweed Master", util.VERSION, "at", listeningAddress)
masterListener, e := util.NewListener(listeningAddress, 0)
if e != nil {
glog.Fatalf("Master startup error: %v", e)
}
go func() {
time.Sleep(100 * time.Millisecond)
myMasterAddress, peers := checkPeers(*masterIp, *mport, *masterPeers)
raftServer := weed_server.NewRaftServer(r, peers, myMasterAddress, *metaFolder, ms.Topo, *mpulse)
ms.SetRaftServer(raftServer)
}()
go func() {
// starting grpc server
grpcPort := *mGrpcPort
if grpcPort == 0 {
grpcPort = *mport + 10000
}
grpcL, err := util.NewListener(*masterBindIp + ":"+strconv.Itoa(grpcPort), 0)
if err != nil {
glog.Fatalf("master failed to listen on grpc port %d: %v", grpcPort, err)
}
// Create your protocol servers.
grpcS := util.NewGrpcServer()
master_pb.RegisterSeaweedServer(grpcS, ms)
reflection.Register(grpcS)
glog.V(0).Infof("Start Seaweed Master %s grpc server at %s:%d", util.VERSION, *masterBindIp, grpcPort)
grpcS.Serve(grpcL)
}()
// start http server
httpS := &http.Server{Handler: r}
if err := httpS.Serve(masterListener); err != nil {
glog.Fatalf("master server failed to serve: %v", err)
}
return true
}
func checkPeers(masterIp string, masterPort int, peers string) (masterAddress string, cleanedPeers []string) {
masterAddress = masterIp + ":" + strconv.Itoa(masterPort)
if peers != "" {
cleanedPeers = strings.Split(peers, ",")
}
hasSelf := false
for _, peer := range cleanedPeers {
if peer == masterAddress {
hasSelf = true
break
}
}
peerCount := len(cleanedPeers)
if !hasSelf {
peerCount += 1
}
if peerCount%2 == 0 {
glog.Fatalf("Only odd number of masters are supported!")
}
return
}
|
