mirror of
https://github.com/seaweedfs/seaweedfs.git
synced 2024-12-27 11:27:56 +08:00
123 lines
3.2 KiB
Go
123 lines
3.2 KiB
Go
package weed_server
|
|
|
|
import (
|
|
"context"
|
|
"fmt"
|
|
"github.com/seaweedfs/seaweedfs/weed/glog"
|
|
"time"
|
|
|
|
"github.com/seaweedfs/raft"
|
|
|
|
"github.com/seaweedfs/seaweedfs/weed/pb/master_pb"
|
|
"github.com/seaweedfs/seaweedfs/weed/security"
|
|
"github.com/seaweedfs/seaweedfs/weed/storage/needle"
|
|
"github.com/seaweedfs/seaweedfs/weed/storage/super_block"
|
|
"github.com/seaweedfs/seaweedfs/weed/storage/types"
|
|
"github.com/seaweedfs/seaweedfs/weed/topology"
|
|
)
|
|
|
|
func (ms *MasterServer) StreamAssign(server master_pb.Seaweed_StreamAssignServer) error {
|
|
for {
|
|
req, err := server.Recv()
|
|
if err != nil {
|
|
glog.Errorf("StreamAssign failed to receive: %v", err)
|
|
return err
|
|
}
|
|
resp, err := ms.Assign(context.Background(), req)
|
|
if err != nil {
|
|
glog.Errorf("StreamAssign failed to assign: %v", err)
|
|
return err
|
|
}
|
|
if err = server.Send(resp); err != nil {
|
|
glog.Errorf("StreamAssign failed to send: %v", err)
|
|
return err
|
|
}
|
|
}
|
|
}
|
|
func (ms *MasterServer) Assign(ctx context.Context, req *master_pb.AssignRequest) (*master_pb.AssignResponse, error) {
|
|
|
|
if !ms.Topo.IsLeader() {
|
|
return nil, raft.NotLeaderError
|
|
}
|
|
|
|
if req.Count == 0 {
|
|
req.Count = 1
|
|
}
|
|
|
|
if req.Replication == "" {
|
|
req.Replication = ms.option.DefaultReplicaPlacement
|
|
}
|
|
replicaPlacement, err := super_block.NewReplicaPlacementFromString(req.Replication)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
ttl, err := needle.ReadTTL(req.Ttl)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
diskType := types.ToDiskType(req.DiskType)
|
|
|
|
option := &topology.VolumeGrowOption{
|
|
Collection: req.Collection,
|
|
ReplicaPlacement: replicaPlacement,
|
|
Ttl: ttl,
|
|
DiskType: diskType,
|
|
Preallocate: ms.preallocateSize,
|
|
DataCenter: req.DataCenter,
|
|
Rack: req.Rack,
|
|
DataNode: req.DataNode,
|
|
MemoryMapMaxSizeMb: req.MemoryMapMaxSizeMb,
|
|
}
|
|
|
|
vl := ms.Topo.GetVolumeLayout(option.Collection, option.ReplicaPlacement, option.Ttl, option.DiskType)
|
|
|
|
if !vl.HasGrowRequest() && vl.ShouldGrowVolumes(option) {
|
|
if ms.Topo.AvailableSpaceFor(option) <= 0 {
|
|
return nil, fmt.Errorf("no free volumes left for " + option.String())
|
|
}
|
|
vl.AddGrowRequest()
|
|
ms.vgCh <- &topology.VolumeGrowRequest{
|
|
Option: option,
|
|
Count: int(req.WritableVolumeCount),
|
|
}
|
|
}
|
|
|
|
var (
|
|
lastErr error
|
|
maxTimeout = time.Second * 10
|
|
startTime = time.Now()
|
|
)
|
|
|
|
for time.Now().Sub(startTime) < maxTimeout {
|
|
fid, count, dnList, err := ms.Topo.PickForWrite(req.Count, option)
|
|
if err == nil {
|
|
dn := dnList.Head()
|
|
var replicas []*master_pb.Location
|
|
for _, r := range dnList.Rest() {
|
|
replicas = append(replicas, &master_pb.Location{
|
|
Url: r.Url(),
|
|
PublicUrl: r.PublicUrl,
|
|
GrpcPort: uint32(r.GrpcPort),
|
|
DataCenter: r.GetDataCenterId(),
|
|
})
|
|
}
|
|
return &master_pb.AssignResponse{
|
|
Fid: fid,
|
|
Location: &master_pb.Location{
|
|
Url: dn.Url(),
|
|
PublicUrl: dn.PublicUrl,
|
|
GrpcPort: uint32(dn.GrpcPort),
|
|
DataCenter: dn.GetDataCenterId(),
|
|
},
|
|
Count: count,
|
|
Auth: string(security.GenJwtForVolumeServer(ms.guard.SigningKey, ms.guard.ExpiresAfterSec, fid)),
|
|
Replicas: replicas,
|
|
}, nil
|
|
}
|
|
//glog.V(4).Infoln("waiting for volume growing...")
|
|
lastErr = err
|
|
time.Sleep(200 * time.Millisecond)
|
|
}
|
|
return nil, lastErr
|
|
}
|