seaweedfs/weed/server/master_grpc_server_volume.go

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package weed_server
import (
"context"
"fmt"
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"reflect"
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"strings"
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"sync"
"time"
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"github.com/seaweedfs/raft"
"github.com/seaweedfs/seaweedfs/weed/glog"
"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"
)
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func (ms *MasterServer) ProcessGrowRequest() {
go func() {
filter := sync.Map{}
for {
req, ok := <-ms.vgCh
if !ok {
break
}
if !ms.Topo.IsLeader() {
//discard buffered requests
time.Sleep(time.Second * 1)
continue
}
// filter out identical requests being processed
found := false
filter.Range(func(k, v interface{}) bool {
if reflect.DeepEqual(k, req) {
found = true
}
return !found
})
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option := req.Option
vl := ms.Topo.GetVolumeLayout(option.Collection, option.ReplicaPlacement, option.Ttl, option.DiskType)
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// not atomic but it's okay
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if !found && vl.ShouldGrowVolumes(option) {
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filter.Store(req, nil)
// we have lock called inside vg
go func() {
glog.V(1).Infoln("starting automatic volume grow")
start := time.Now()
newVidLocations, err := ms.vg.AutomaticGrowByType(req.Option, ms.grpcDialOption, ms.Topo, req.Count)
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glog.V(1).Infoln("finished automatic volume grow, cost ", time.Now().Sub(start))
if err == nil {
for _, newVidLocation := range newVidLocations {
ms.broadcastToClients(&master_pb.KeepConnectedResponse{VolumeLocation: newVidLocation})
}
}
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vl.DoneGrowRequest()
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if req.ErrCh != nil {
req.ErrCh <- err
close(req.ErrCh)
}
filter.Delete(req)
}()
} else {
glog.V(4).Infoln("discard volume grow request")
time.Sleep(time.Millisecond * 211)
vl.DoneGrowRequest()
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}
}
}()
}
func (ms *MasterServer) LookupVolume(ctx context.Context, req *master_pb.LookupVolumeRequest) (*master_pb.LookupVolumeResponse, error) {
resp := &master_pb.LookupVolumeResponse{}
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volumeLocations := ms.lookupVolumeId(req.VolumeOrFileIds, req.Collection)
for _, volumeOrFileId := range req.VolumeOrFileIds {
vid := volumeOrFileId
commaSep := strings.Index(vid, ",")
if commaSep > 0 {
vid = vid[0:commaSep]
}
if result, found := volumeLocations[vid]; found {
var locations []*master_pb.Location
for _, loc := range result.Locations {
locations = append(locations, &master_pb.Location{
Url: loc.Url,
PublicUrl: loc.PublicUrl,
DataCenter: loc.DataCenter,
})
}
var auth string
if commaSep > 0 { // this is a file id
auth = string(security.GenJwtForVolumeServer(ms.guard.SigningKey, ms.guard.ExpiresAfterSec, result.VolumeOrFileId))
}
resp.VolumeIdLocations = append(resp.VolumeIdLocations, &master_pb.LookupVolumeResponse_VolumeIdLocation{
VolumeOrFileId: result.VolumeOrFileId,
Locations: locations,
Error: result.Error,
Auth: auth,
})
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}
}
return resp, nil
}
func (ms *MasterServer) Statistics(ctx context.Context, req *master_pb.StatisticsRequest) (*master_pb.StatisticsResponse, error) {
if !ms.Topo.IsLeader() {
return nil, raft.NotLeaderError
}
if req.Replication == "" {
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req.Replication = ms.option.DefaultReplicaPlacement
}
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replicaPlacement, err := super_block.NewReplicaPlacementFromString(req.Replication)
if err != nil {
return nil, err
}
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ttl, err := needle.ReadTTL(req.Ttl)
if err != nil {
return nil, err
}
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volumeLayout := ms.Topo.GetVolumeLayout(req.Collection, replicaPlacement, ttl, types.ToDiskType(req.DiskType))
stats := volumeLayout.Stats()
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totalSize := ms.Topo.GetDiskUsages().GetMaxVolumeCount() * int64(ms.option.VolumeSizeLimitMB) * 1024 * 1024
resp := &master_pb.StatisticsResponse{
TotalSize: uint64(totalSize),
UsedSize: stats.UsedSize,
FileCount: stats.FileCount,
}
return resp, nil
}
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func (ms *MasterServer) VolumeList(ctx context.Context, req *master_pb.VolumeListRequest) (*master_pb.VolumeListResponse, error) {
if !ms.Topo.IsLeader() {
return nil, raft.NotLeaderError
}
resp := &master_pb.VolumeListResponse{
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TopologyInfo: ms.Topo.ToTopologyInfo(),
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VolumeSizeLimitMb: uint64(ms.option.VolumeSizeLimitMB),
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}
return resp, nil
}
func (ms *MasterServer) LookupEcVolume(ctx context.Context, req *master_pb.LookupEcVolumeRequest) (*master_pb.LookupEcVolumeResponse, error) {
if !ms.Topo.IsLeader() {
return nil, raft.NotLeaderError
}
resp := &master_pb.LookupEcVolumeResponse{}
ecLocations, found := ms.Topo.LookupEcShards(needle.VolumeId(req.VolumeId))
if !found {
return resp, fmt.Errorf("ec volume %d not found", req.VolumeId)
}
resp.VolumeId = req.VolumeId
for shardId, shardLocations := range ecLocations.Locations {
var locations []*master_pb.Location
for _, dn := range shardLocations {
locations = append(locations, &master_pb.Location{
Url: string(dn.Id()),
PublicUrl: dn.PublicUrl,
DataCenter: dn.GetDataCenterId(),
})
}
resp.ShardIdLocations = append(resp.ShardIdLocations, &master_pb.LookupEcVolumeResponse_EcShardIdLocation{
ShardId: uint32(shardId),
Locations: locations,
})
}
return resp, nil
}
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func (ms *MasterServer) VacuumVolume(ctx context.Context, req *master_pb.VacuumVolumeRequest) (*master_pb.VacuumVolumeResponse, error) {
if !ms.Topo.IsLeader() {
return nil, raft.NotLeaderError
}
resp := &master_pb.VacuumVolumeResponse{}
ms.Topo.Vacuum(ms.grpcDialOption, float64(req.GarbageThreshold), req.VolumeId, req.Collection, ms.preallocateSize)
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return resp, nil
}
func (ms *MasterServer) DisableVacuum(ctx context.Context, req *master_pb.DisableVacuumRequest) (*master_pb.DisableVacuumResponse, error) {
ms.Topo.DisableVacuum()
resp := &master_pb.DisableVacuumResponse{}
return resp, nil
}
func (ms *MasterServer) EnableVacuum(ctx context.Context, req *master_pb.EnableVacuumRequest) (*master_pb.EnableVacuumResponse, error) {
ms.Topo.EnableVacuum()
resp := &master_pb.EnableVacuumResponse{}
return resp, nil
}
func (ms *MasterServer) VolumeMarkReadonly(ctx context.Context, req *master_pb.VolumeMarkReadonlyRequest) (*master_pb.VolumeMarkReadonlyResponse, error) {
if !ms.Topo.IsLeader() {
return nil, raft.NotLeaderError
}
resp := &master_pb.VolumeMarkReadonlyResponse{}
replicaPlacement, _ := super_block.NewReplicaPlacementFromByte(byte(req.ReplicaPlacement))
vl := ms.Topo.GetVolumeLayout(req.Collection, replicaPlacement, needle.LoadTTLFromUint32(req.Ttl), types.ToDiskType(req.DiskType))
dataNodes := ms.Topo.Lookup(req.Collection, needle.VolumeId(req.VolumeId))
for _, dn := range dataNodes {
if dn.Ip == req.Ip && dn.Port == int(req.Port) {
if req.IsReadonly {
vl.SetVolumeReadOnly(dn, needle.VolumeId(req.VolumeId))
} else {
vl.SetVolumeWritable(dn, needle.VolumeId(req.VolumeId))
}
}
}
return resp, nil
}