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
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
|
package main
import (
"code.google.com/p/weed-fs/go/glog"
"code.google.com/p/weed-fs/go/util"
"code.google.com/p/weed-fs/go/weed/weed_server"
"github.com/gorilla/mux"
"net/http"
"os"
"runtime"
"strconv"
"strings"
"sync"
"time"
)
var (
filer FilerOptions
)
func init() {
cmdServer.Run = runServer // break init cycle
}
var cmdServer = &Command{
UsageLine: "server -port=8080 -dir=/tmp -max=5 -ip=server_name",
Short: "start a server, including volume server, and automatically elect a master server",
Long: `start both a volume server to provide storage spaces
and a master server to provide volume=>location mapping service and sequence number of file ids
This is provided as a convenient way to start both volume server and master server.
The servers are the same as starting them separately.
So other volume servers can use this embedded master server also.
`,
}
var (
serverIp = cmdServer.Flag.String("ip", "localhost", "ip or server name")
serverMaxCpu = cmdServer.Flag.Int("maxCpu", 0, "maximum number of CPUs. 0 means all available CPUs")
serverTimeout = cmdServer.Flag.Int("idleTimeout", 10, "connection idle seconds")
serverDataCenter = cmdServer.Flag.String("dataCenter", "", "current volume server's data center name")
serverRack = cmdServer.Flag.String("rack", "", "current volume server's rack name")
serverWhiteListOption = cmdServer.Flag.String("whiteList", "", "comma separated Ip addresses having write permission. No limit if empty.")
serverPeers = cmdServer.Flag.String("peers", "", "other master nodes in comma separated ip:masterPort list")
masterPort = cmdServer.Flag.Int("masterPort", 9333, "master server http listen port")
masterMetaFolder = cmdServer.Flag.String("mdir", "", "data directory to store meta data, default to same as -dir specified")
masterVolumeSizeLimitMB = cmdServer.Flag.Uint("volumeSizeLimitMB", 30*1000, "Master stops directing writes to oversized volumes.")
masterConfFile = cmdServer.Flag.String("conf", "/etc/weedfs/weedfs.conf", "xml configuration file")
masterDefaultReplicaPlacement = cmdServer.Flag.String("defaultReplicaPlacement", "000", "Default replication type if not specified.")
volumePort = cmdServer.Flag.Int("port", 8080, "volume server http listen port")
volumePublicUrl = cmdServer.Flag.String("publicUrl", "", "Publicly accessible <ip|server_name>:<port>")
volumeDataFolders = cmdServer.Flag.String("dir", os.TempDir(), "directories to store data files. dir[,dir]...")
volumeMaxDataVolumeCounts = cmdServer.Flag.String("max", "7", "maximum numbers of volumes, count[,count]...")
volumePulse = cmdServer.Flag.Int("pulseSeconds", 5, "number of seconds between heartbeats")
isStartingFiler = cmdServer.Flag.Bool("filer", false, "whether to start filer")
serverWhiteList []string
)
func init() {
filer.master = cmdServer.Flag.String("filer.master", "", "default to current master server")
filer.collection = cmdServer.Flag.String("filer.collection", "", "all data will be stored in this collection")
filer.port = cmdServer.Flag.Int("filer.port", 8888, "filer server http listen port")
filer.dir = cmdServer.Flag.String("filer.dir", "", "directory to store meta data, default to a 'filer' sub directory of what -mdir is specified")
filer.defaultReplicaPlacement = cmdServer.Flag.String("filer.defaultReplicaPlacement", "", "Default replication type if not specified during runtime.")
}
func runServer(cmd *Command, args []string) bool {
*filer.master = *serverIp + ":" + strconv.Itoa(*masterPort)
if *filer.defaultReplicaPlacement == "" {
*filer.defaultReplicaPlacement = *masterDefaultReplicaPlacement
}
if *serverMaxCpu < 1 {
*serverMaxCpu = runtime.NumCPU()
}
runtime.GOMAXPROCS(*serverMaxCpu)
folders := strings.Split(*volumeDataFolders, ",")
maxCountStrings := strings.Split(*volumeMaxDataVolumeCounts, ",")
maxCounts := make([]int, 0)
for _, maxString := range maxCountStrings {
if max, e := strconv.Atoi(maxString); e == nil {
maxCounts = append(maxCounts, max)
} else {
glog.Fatalf("The max specified in -max not a valid number %s", max)
}
}
if len(folders) != len(maxCounts) {
glog.Fatalf("%d directories by -dir, but only %d max is set by -max", len(folders), len(maxCounts))
}
for _, folder := range folders {
if err := util.TestFolderWritable(folder); err != nil {
glog.Fatalf("Check Data Folder(-dir) Writable %s : %s", folder, err)
}
}
if *masterMetaFolder == "" {
*masterMetaFolder = folders[0]
}
if *filer.dir == "" {
*filer.dir = *masterMetaFolder + "/filer"
os.MkdirAll(*filer.dir, 0700)
}
if err := util.TestFolderWritable(*masterMetaFolder); err != nil {
glog.Fatalf("Check Meta Folder (-mdir=\"%s\") Writable: %s", *masterMetaFolder, err)
}
if err := util.TestFolderWritable(*filer.dir); err != nil {
glog.Fatalf("Check Mapping Meta Folder (-filer.dir=\"%s\") Writable: %s", *filer.dir, err)
}
if *volumePublicUrl == "" {
*volumePublicUrl = *serverIp + ":" + strconv.Itoa(*volumePort)
}
if *serverWhiteListOption != "" {
serverWhiteList = strings.Split(*serverWhiteListOption, ",")
}
if *isStartingFiler {
go func() {
r := http.NewServeMux()
_, nfs_err := weed_server.NewFilerServer(r, *filer.port, *filer.master, *filer.dir, *filer.collection)
if nfs_err != nil {
glog.Fatalf(nfs_err.Error())
}
glog.V(0).Infoln("Start Weed Filer", util.VERSION, "at port", strconv.Itoa(*filer.port))
filerListener, e := util.NewListener(
":"+strconv.Itoa(*filer.port),
time.Duration(10)*time.Second,
)
if e != nil {
glog.Fatalf(e.Error())
}
if e := http.Serve(filerListener, r); e != nil {
glog.Fatalf("Filer Fail to serve:%s", e.Error())
}
}()
}
var raftWaitForMaster sync.WaitGroup
var volumeWait sync.WaitGroup
raftWaitForMaster.Add(1)
volumeWait.Add(1)
go func() {
r := mux.NewRouter()
ms := weed_server.NewMasterServer(r, *masterPort, *masterMetaFolder,
*masterVolumeSizeLimitMB, *volumePulse, *masterConfFile, *masterDefaultReplicaPlacement, *garbageThreshold, serverWhiteList,
)
glog.V(0).Infoln("Start Weed Master", util.VERSION, "at port", *serverIp+":"+strconv.Itoa(*masterPort))
masterListener, e := util.NewListener(
*serverIp+":"+strconv.Itoa(*masterPort),
time.Duration(*serverTimeout)*time.Second,
)
if e != nil {
glog.Fatalf(e.Error())
}
go func() {
raftWaitForMaster.Wait()
time.Sleep(100 * time.Millisecond)
myAddress := *serverIp + ":" + strconv.Itoa(*masterPort)
var peers []string
if *serverPeers != "" {
peers = strings.Split(*serverPeers, ",")
}
raftServer := weed_server.NewRaftServer(r, peers, myAddress, *masterMetaFolder, ms.Topo, *volumePulse)
ms.SetRaftServer(raftServer)
volumeWait.Done()
}()
raftWaitForMaster.Done()
if e := http.Serve(masterListener, r); e != nil {
glog.Fatalf("Master Fail to serve:%s", e.Error())
}
}()
volumeWait.Wait()
time.Sleep(100 * time.Millisecond)
r := http.NewServeMux()
weed_server.NewVolumeServer(r, *serverIp, *volumePort, *volumePublicUrl, folders, maxCounts,
*serverIp+":"+strconv.Itoa(*masterPort), *volumePulse, *serverDataCenter, *serverRack, serverWhiteList,
)
glog.V(0).Infoln("Start Weed volume server", util.VERSION, "at http://"+*serverIp+":"+strconv.Itoa(*volumePort))
volumeListener, e := util.NewListener(
*serverIp+":"+strconv.Itoa(*volumePort),
time.Duration(*serverTimeout)*time.Second,
)
if e != nil {
glog.Fatalf(e.Error())
}
if e := http.Serve(volumeListener, r); e != nil {
glog.Fatalf("Fail to serve:%s", e.Error())
}
return true
}
|
