seaweedfs/weed/command/volume.go

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package command
import (
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"net/http"
"os"
"runtime"
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"strconv"
"strings"
"time"
"github.com/chrislusf/seaweedfs/weed/glog"
"github.com/chrislusf/seaweedfs/weed/server"
"github.com/chrislusf/seaweedfs/weed/storage"
"github.com/chrislusf/seaweedfs/weed/util"
)
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var (
v VolumeServerOptions
)
type VolumeServerOptions struct {
port *int
publicPort *int
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folders []string
folderMaxLimits []int
ip *string
publicUrl *string
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bindIp *string
master *string
pulseSeconds *int
idleConnectionTimeout *int
maxCpu *int
dataCenter *string
rack *string
whiteList []string
indexType *string
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fixJpgOrientation *bool
readRedirect *bool
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cpuProfile *string
memProfile *string
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}
func init() {
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cmdVolume.Run = runVolume // break init cycle
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v.port = cmdVolume.Flag.Int("port", 8080, "http listen port")
v.publicPort = cmdVolume.Flag.Int("port.public", 0, "port opened to public")
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v.ip = cmdVolume.Flag.String("ip", "", "ip or server name")
v.publicUrl = cmdVolume.Flag.String("publicUrl", "", "Publicly accessible address")
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v.bindIp = cmdVolume.Flag.String("ip.bind", "0.0.0.0", "ip address to bind to")
v.master = cmdVolume.Flag.String("mserver", "localhost:9333", "master server location")
v.pulseSeconds = cmdVolume.Flag.Int("pulseSeconds", 5, "number of seconds between heartbeats, must be smaller than or equal to the master's setting")
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v.idleConnectionTimeout = cmdVolume.Flag.Int("idleTimeout", 30, "connection idle seconds")
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v.maxCpu = cmdVolume.Flag.Int("maxCpu", 0, "maximum number of CPUs. 0 means all available CPUs")
v.dataCenter = cmdVolume.Flag.String("dataCenter", "", "current volume server's data center name")
v.rack = cmdVolume.Flag.String("rack", "", "current volume server's rack name")
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v.indexType = cmdVolume.Flag.String("index", "memory", "Choose [memory|leveldb|boltdb|btree] mode for memory~performance balance.")
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v.fixJpgOrientation = cmdVolume.Flag.Bool("images.fix.orientation", true, "Adjust jpg orientation when uploading.")
v.readRedirect = cmdVolume.Flag.Bool("read.redirect", true, "Redirect moved or non-local volumes.")
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v.cpuProfile = cmdVolume.Flag.String("cpuprofile", "", "cpu profile output file")
v.memProfile = cmdVolume.Flag.String("memprofile", "", "memory profile output file")
}
var cmdVolume = &Command{
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UsageLine: "volume -port=8080 -dir=/tmp -max=5 -ip=server_name -mserver=localhost:9333",
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Short: "start a volume server",
Long: `start a volume server to provide storage spaces
`,
}
var (
volumeFolders = cmdVolume.Flag.String("dir", os.TempDir(), "directories to store data files. dir[,dir]...")
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maxVolumeCounts = cmdVolume.Flag.String("max", "7", "maximum numbers of volumes, count[,count]...")
volumeWhiteListOption = cmdVolume.Flag.String("whiteList", "", "comma separated Ip addresses having write permission. No limit if empty.")
)
func runVolume(cmd *Command, args []string) bool {
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if *v.maxCpu < 1 {
*v.maxCpu = runtime.NumCPU()
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}
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runtime.GOMAXPROCS(*v.maxCpu)
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util.SetupProfiling(*v.cpuProfile, *v.memProfile)
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//Set multiple folders and each folder's max volume count limit'
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v.folders = strings.Split(*volumeFolders, ",")
maxCountStrings := strings.Split(*maxVolumeCounts, ",")
for _, maxString := range maxCountStrings {
if max, e := strconv.Atoi(maxString); e == nil {
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v.folderMaxLimits = append(v.folderMaxLimits, max)
} else {
glog.Fatalf("The max specified in -max not a valid number %s", maxString)
}
}
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if len(v.folders) != len(v.folderMaxLimits) {
glog.Fatalf("%d directories by -dir, but only %d max is set by -max", len(v.folders), len(v.folderMaxLimits))
}
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for _, folder := range v.folders {
if err := util.TestFolderWritable(folder); err != nil {
glog.Fatalf("Check Data Folder(-dir) Writable %s : %s", folder, err)
}
}
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//security related white list configuration
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if *volumeWhiteListOption != "" {
v.whiteList = strings.Split(*volumeWhiteListOption, ",")
}
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if *v.ip == "" {
*v.ip = "127.0.0.1"
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}
if *v.publicPort == 0 {
*v.publicPort = *v.port
}
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if *v.publicUrl == "" {
*v.publicUrl = *v.ip + ":" + strconv.Itoa(*v.publicPort)
}
isSeperatedPublicPort := *v.publicPort != *v.port
volumeMux := http.NewServeMux()
publicVolumeMux := volumeMux
if isSeperatedPublicPort {
publicVolumeMux = http.NewServeMux()
}
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volumeNeedleMapKind := storage.NeedleMapInMemory
switch *v.indexType {
case "leveldb":
volumeNeedleMapKind = storage.NeedleMapLevelDb
case "boltdb":
volumeNeedleMapKind = storage.NeedleMapBoltDb
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case "btree":
volumeNeedleMapKind = storage.NeedleMapBtree
}
volumeServer := weed_server.NewVolumeServer(volumeMux, publicVolumeMux,
*v.ip, *v.port, *v.publicUrl,
v.folders, v.folderMaxLimits,
volumeNeedleMapKind,
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*v.master, *v.pulseSeconds, *v.dataCenter, *v.rack,
v.whiteList,
*v.fixJpgOrientation, *v.readRedirect,
)
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listeningAddress := *v.bindIp + ":" + strconv.Itoa(*v.port)
glog.V(0).Infoln("Start Seaweed volume server", util.VERSION, "at", listeningAddress)
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listener, e := util.NewListener(listeningAddress, time.Duration(*v.idleConnectionTimeout)*time.Second)
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if e != nil {
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glog.Fatalf("Volume server listener error:%v", e)
}
if isSeperatedPublicPort {
publicListeningAddress := *v.bindIp + ":" + strconv.Itoa(*v.publicPort)
glog.V(0).Infoln("Start Seaweed volume server", util.VERSION, "public at", publicListeningAddress)
publicListener, e := util.NewListener(publicListeningAddress, time.Duration(*v.idleConnectionTimeout)*time.Second)
if e != nil {
glog.Fatalf("Volume server listener error:%v", e)
}
go func() {
if e := http.Serve(publicListener, publicVolumeMux); e != nil {
glog.Fatalf("Volume server fail to serve public: %v", e)
}
}()
}
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util.OnInterrupt(func() {
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volumeServer.Shutdown()
})
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if e := http.Serve(listener, volumeMux); e != nil {
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glog.Fatalf("Volume server fail to serve: %v", e)
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}
return true
}