seaweedfs/go/weed/weed_server/volume_server.go

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package weed_server
import (
"math/rand"
"net/http"
"strconv"
"time"
"github.com/chrislusf/weed-fs/go/glog"
"github.com/chrislusf/weed-fs/go/storage"
)
type VolumeServer struct {
masterNode string
pulseSeconds int
dataCenter string
rack string
whiteList []string
store *storage.Store
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FixJpgOrientation bool
}
func NewVolumeServer(r *http.ServeMux, ip string, port int, publicIp string, folders []string, maxCounts []int,
masterNode string, pulseSeconds int,
dataCenter string, rack string,
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whiteList []string, fixJpgOrientation bool) *VolumeServer {
publicUrl := publicIp + ":" + strconv.Itoa(port)
vs := &VolumeServer{
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masterNode: masterNode,
pulseSeconds: pulseSeconds,
dataCenter: dataCenter,
rack: rack,
whiteList: whiteList,
FixJpgOrientation: fixJpgOrientation,
}
vs.store = storage.NewStore(port, ip, publicUrl, folders, maxCounts)
r.HandleFunc("/status", secure(vs.whiteList, vs.statusHandler))
r.HandleFunc("/admin/assign_volume", secure(vs.whiteList, vs.assignVolumeHandler))
r.HandleFunc("/admin/vacuum_volume_check", secure(vs.whiteList, vs.vacuumVolumeCheckHandler))
r.HandleFunc("/admin/vacuum_volume_compact", secure(vs.whiteList, vs.vacuumVolumeCompactHandler))
r.HandleFunc("/admin/vacuum_volume_commit", secure(vs.whiteList, vs.vacuumVolumeCommitHandler))
r.HandleFunc("/admin/freeze_volume", secure(vs.whiteList, vs.freezeVolumeHandler))
r.HandleFunc("/admin/delete_collection", secure(vs.whiteList, vs.deleteCollectionHandler))
r.HandleFunc("/stats/counter", secure(vs.whiteList, statsCounterHandler))
r.HandleFunc("/stats/memory", secure(vs.whiteList, statsMemoryHandler))
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r.HandleFunc("/stats/disk", secure(vs.whiteList, vs.statsDiskHandler))
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r.HandleFunc("/delete", secure(vs.whiteList, vs.batchDeleteHandler))
r.HandleFunc("/", vs.storeHandler)
go func() {
connected := true
vs.store.SetBootstrapMaster(vs.masterNode)
vs.store.SetDataCenter(vs.dataCenter)
vs.store.SetRack(vs.rack)
for {
master, err := vs.store.Join()
if err == nil {
if !connected {
connected = true
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
}
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func (vs *VolumeServer) Shutdown() {
glog.V(0).Infoln("Shutting down volume server...")
vs.store.Close()
glog.V(0).Infoln("Shut down successfully!")
}