seaweedfs/go/weed/weed_server/volume_server.go
2015-02-07 15:35:28 -08:00

110 lines
3.3 KiB
Go

package weed_server
import (
"math/rand"
"net/http"
"sync"
"time"
"github.com/chrislusf/weed-fs/go/glog"
"github.com/chrislusf/weed-fs/go/security"
"github.com/chrislusf/weed-fs/go/storage"
)
type VolumeServer struct {
masterNode string
mnLock sync.RWMutex
pulseSeconds int
dataCenter string
rack string
store *storage.Store
guard *security.Guard
FixJpgOrientation bool
}
func NewVolumeServer(publicMux, adminMux *http.ServeMux, ip string,
port, adminPort int, publicUrl string,
folders []string, maxCounts []int,
masterNode string, pulseSeconds int,
dataCenter string, rack string,
whiteList []string,
fixJpgOrientation bool) *VolumeServer {
vs := &VolumeServer{
pulseSeconds: pulseSeconds,
dataCenter: dataCenter,
rack: rack,
FixJpgOrientation: fixJpgOrientation,
}
vs.SetMasterNode(masterNode)
vs.store = storage.NewStore(port, adminPort, ip, publicUrl, folders, maxCounts)
vs.guard = security.NewGuard(whiteList, "")
adminMux.HandleFunc("/status", vs.guard.WhiteList(vs.statusHandler))
adminMux.HandleFunc("/admin/assign_volume", vs.guard.WhiteList(vs.assignVolumeHandler))
adminMux.HandleFunc("/admin/vacuum_volume_check", vs.guard.WhiteList(vs.vacuumVolumeCheckHandler))
adminMux.HandleFunc("/admin/vacuum_volume_compact", vs.guard.WhiteList(vs.vacuumVolumeCompactHandler))
adminMux.HandleFunc("/admin/vacuum_volume_commit", vs.guard.WhiteList(vs.vacuumVolumeCommitHandler))
adminMux.HandleFunc("/admin/freeze_volume", vs.guard.WhiteList(vs.freezeVolumeHandler))
adminMux.HandleFunc("/admin/delete_collection", vs.guard.WhiteList(vs.deleteCollectionHandler))
adminMux.HandleFunc("/stats/counter", vs.guard.WhiteList(statsCounterHandler))
adminMux.HandleFunc("/stats/memory", vs.guard.WhiteList(statsMemoryHandler))
adminMux.HandleFunc("/stats/disk", vs.guard.WhiteList(vs.statsDiskHandler))
publicMux.HandleFunc("/delete", vs.guard.Secure(vs.batchDeleteHandler))
publicMux.HandleFunc("/", vs.storeHandler)
go func() {
connected := true
vs.store.SetBootstrapMaster(vs.GetMasterNode())
vs.store.SetDataCenter(vs.dataCenter)
vs.store.SetRack(vs.rack)
for {
master, secretKey, err := vs.store.Join()
if err == nil {
if !connected {
connected = true
vs.SetMasterNode(master)
vs.guard.SecretKey = secretKey
glog.V(0).Infoln("Volume Server Connected with master at", master)
}
} else {
glog.V(4).Infoln("Volume Server Failed to talk with master:", err.Error())
if connected {
connected = false
}
}
if connected {
time.Sleep(time.Duration(float32(vs.pulseSeconds*1e3)*(1+rand.Float32())) * time.Millisecond)
} else {
time.Sleep(time.Duration(float32(vs.pulseSeconds*1e3)*0.25) * time.Millisecond)
}
}
}()
return vs
}
func (vs *VolumeServer) GetMasterNode() string {
vs.mnLock.RLock()
defer vs.mnLock.RUnlock()
return vs.masterNode
}
func (vs *VolumeServer) SetMasterNode(masterNode string) {
vs.mnLock.Lock()
defer vs.mnLock.Unlock()
vs.masterNode = masterNode
}
func (vs *VolumeServer) Shutdown() {
glog.V(0).Infoln("Shutting down volume server...")
vs.store.Close()
glog.V(0).Infoln("Shut down successfully!")
}
func (vs *VolumeServer) jwt(fileId string) security.EncodedJwt {
return security.GenJwt(vs.guard.SecretKey, fileId)
}