mirror of
https://github.com/chrislusf/seaweedfs
synced 2024-08-25 03:01:15 +02:00
* initial prefer same data center https://github.com/seaweedfs/seaweedfs/issues/3404 * GetDataCenter * prefer same data center for ReplicationSource * GetDataCenterId * remove glog
166 lines
5.1 KiB
Go
166 lines
5.1 KiB
Go
package weed_server
|
|
|
|
import (
|
|
"fmt"
|
|
"github.com/seaweedfs/seaweedfs/weed/glog"
|
|
"net/http"
|
|
"strconv"
|
|
"strings"
|
|
|
|
"github.com/seaweedfs/seaweedfs/weed/operation"
|
|
"github.com/seaweedfs/seaweedfs/weed/security"
|
|
"github.com/seaweedfs/seaweedfs/weed/stats"
|
|
"github.com/seaweedfs/seaweedfs/weed/storage/needle"
|
|
"github.com/seaweedfs/seaweedfs/weed/topology"
|
|
)
|
|
|
|
func (ms *MasterServer) lookupVolumeId(vids []string, collection string) (volumeLocations map[string]operation.LookupResult) {
|
|
volumeLocations = make(map[string]operation.LookupResult)
|
|
for _, vid := range vids {
|
|
commaSep := strings.Index(vid, ",")
|
|
if commaSep > 0 {
|
|
vid = vid[0:commaSep]
|
|
}
|
|
if _, ok := volumeLocations[vid]; ok {
|
|
continue
|
|
}
|
|
volumeLocations[vid] = ms.findVolumeLocation(collection, vid)
|
|
}
|
|
return
|
|
}
|
|
|
|
// If "fileId" is provided, this returns the fileId location and a JWT to update or delete the file.
|
|
// If "volumeId" is provided, this only returns the volumeId location
|
|
func (ms *MasterServer) dirLookupHandler(w http.ResponseWriter, r *http.Request) {
|
|
vid := r.FormValue("volumeId")
|
|
if vid != "" {
|
|
// backward compatible
|
|
commaSep := strings.Index(vid, ",")
|
|
if commaSep > 0 {
|
|
vid = vid[0:commaSep]
|
|
}
|
|
}
|
|
fileId := r.FormValue("fileId")
|
|
if fileId != "" {
|
|
commaSep := strings.Index(fileId, ",")
|
|
if commaSep > 0 {
|
|
vid = fileId[0:commaSep]
|
|
}
|
|
}
|
|
collection := r.FormValue("collection") // optional, but can be faster if too many collections
|
|
location := ms.findVolumeLocation(collection, vid)
|
|
httpStatus := http.StatusOK
|
|
if location.Error != "" || location.Locations == nil {
|
|
httpStatus = http.StatusNotFound
|
|
} else {
|
|
forRead := r.FormValue("read")
|
|
isRead := forRead == "yes"
|
|
ms.maybeAddJwtAuthorization(w, fileId, !isRead)
|
|
}
|
|
writeJsonQuiet(w, r, httpStatus, location)
|
|
}
|
|
|
|
// findVolumeLocation finds the volume location from master topo if it is leader,
|
|
// or from master client if not leader
|
|
func (ms *MasterServer) findVolumeLocation(collection, vid string) operation.LookupResult {
|
|
var locations []operation.Location
|
|
var err error
|
|
if ms.Topo.IsLeader() {
|
|
volumeId, newVolumeIdErr := needle.NewVolumeId(vid)
|
|
if newVolumeIdErr != nil {
|
|
err = fmt.Errorf("Unknown volume id %s", vid)
|
|
} else {
|
|
machines := ms.Topo.Lookup(collection, volumeId)
|
|
for _, loc := range machines {
|
|
locations = append(locations, operation.Location{
|
|
Url: loc.Url(), PublicUrl: loc.PublicUrl, DataCenter: loc.GetDataCenterId(),
|
|
})
|
|
}
|
|
}
|
|
} else {
|
|
machines, getVidLocationsErr := ms.MasterClient.GetVidLocations(vid)
|
|
for _, loc := range machines {
|
|
locations = append(locations, operation.Location{
|
|
Url: loc.Url, PublicUrl: loc.PublicUrl, DataCenter: loc.DataCenter,
|
|
})
|
|
}
|
|
err = getVidLocationsErr
|
|
}
|
|
if len(locations) == 0 && err == nil {
|
|
err = fmt.Errorf("volume id %s not found", vid)
|
|
}
|
|
ret := operation.LookupResult{
|
|
VolumeOrFileId: vid,
|
|
Locations: locations,
|
|
}
|
|
if err != nil {
|
|
ret.Error = err.Error()
|
|
}
|
|
return ret
|
|
}
|
|
|
|
func (ms *MasterServer) dirAssignHandler(w http.ResponseWriter, r *http.Request) {
|
|
stats.AssignRequest()
|
|
requestedCount, e := strconv.ParseUint(r.FormValue("count"), 10, 64)
|
|
if e != nil || requestedCount == 0 {
|
|
requestedCount = 1
|
|
}
|
|
|
|
writableVolumeCount, e := strconv.Atoi(r.FormValue("writableVolumeCount"))
|
|
if e != nil {
|
|
writableVolumeCount = 0
|
|
}
|
|
|
|
option, err := ms.getVolumeGrowOption(r)
|
|
if err != nil {
|
|
writeJsonQuiet(w, r, http.StatusNotAcceptable, operation.AssignResult{Error: err.Error()})
|
|
return
|
|
}
|
|
|
|
vl := ms.Topo.GetVolumeLayout(option.Collection, option.ReplicaPlacement, option.Ttl, option.DiskType)
|
|
|
|
if !vl.HasGrowRequest() && vl.ShouldGrowVolumes(option) {
|
|
glog.V(0).Infof("dirAssign volume growth %v from %v", option.String(), r.RemoteAddr)
|
|
if ms.Topo.AvailableSpaceFor(option) <= 0 {
|
|
writeJsonQuiet(w, r, http.StatusNotFound, operation.AssignResult{Error: "No free volumes left for " + option.String()})
|
|
return
|
|
}
|
|
errCh := make(chan error, 1)
|
|
vl.AddGrowRequest()
|
|
ms.vgCh <- &topology.VolumeGrowRequest{
|
|
Option: option,
|
|
Count: writableVolumeCount,
|
|
ErrCh: errCh,
|
|
}
|
|
if err := <-errCh; err != nil {
|
|
writeJsonError(w, r, http.StatusInternalServerError, fmt.Errorf("cannot grow volume group! %v", err))
|
|
return
|
|
}
|
|
}
|
|
fid, count, dnList, err := ms.Topo.PickForWrite(requestedCount, option)
|
|
if err == nil {
|
|
ms.maybeAddJwtAuthorization(w, fid, true)
|
|
dn := dnList.Head()
|
|
writeJsonQuiet(w, r, http.StatusOK, operation.AssignResult{Fid: fid, Url: dn.Url(), PublicUrl: dn.PublicUrl, Count: count})
|
|
} else {
|
|
writeJsonQuiet(w, r, http.StatusNotAcceptable, operation.AssignResult{Error: err.Error()})
|
|
}
|
|
}
|
|
|
|
func (ms *MasterServer) maybeAddJwtAuthorization(w http.ResponseWriter, fileId string, isWrite bool) {
|
|
if fileId == "" {
|
|
return
|
|
}
|
|
var encodedJwt security.EncodedJwt
|
|
if isWrite {
|
|
encodedJwt = security.GenJwtForVolumeServer(ms.guard.SigningKey, ms.guard.ExpiresAfterSec, fileId)
|
|
} else {
|
|
encodedJwt = security.GenJwtForVolumeServer(ms.guard.ReadSigningKey, ms.guard.ReadExpiresAfterSec, fileId)
|
|
}
|
|
if encodedJwt == "" {
|
|
return
|
|
}
|
|
|
|
w.Header().Set("Authorization", "BEARER "+string(encodedJwt))
|
|
}
|