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add grpc ec shard read

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This commit is contained in:
Chris Lu 2019-05-27 11:59:03 -07:00
parent a4f3d82c57
commit b4b407e403
12 changed files with 418 additions and 168 deletions
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20
weed/pb/volume_server.proto
View file

@ -58,6 +58,8 @@ service VolumeServer {
}
rpc VolumeEcShardsUnmount (VolumeEcShardsUnmountRequest) returns (VolumeEcShardsUnmountResponse) {
}
rpc VolumeEcShardRead (VolumeEcShardReadRequest) returns (stream VolumeEcShardReadResponse) {
}
}
@ -213,7 +215,7 @@ message VolumeEcShardsGenerateResponse {
message VolumeEcShardsCopyRequest {
uint32 volume_id = 1;
string collection = 2;
repeated uint32 ec_indexes = 3;
repeated uint32 shard_ids = 3;
string source_data_node = 5;
}
message VolumeEcShardsCopyResponse {
@ -222,7 +224,7 @@ message VolumeEcShardsCopyResponse {
message VolumeEcShardsDeleteRequest {
uint32 volume_id = 1;
bool should_delete_ecx = 2;
repeated uint32 ec_indexes = 3;
repeated uint32 shard_ids = 3;
}
message VolumeEcShardsDeleteResponse {
}
@ -230,18 +232,28 @@ message VolumeEcShardsDeleteResponse {
message VolumeEcShardsMountRequest {
uint32 volume_id = 1;
string collection = 2;
repeated uint32 ec_indexes = 3;
repeated uint32 shard_ids = 3;
}
message VolumeEcShardsMountResponse {
}
message VolumeEcShardsUnmountRequest {
uint32 volume_id = 1;
repeated uint32 ec_indexes = 3;
repeated uint32 shard_ids = 3;
}
message VolumeEcShardsUnmountResponse {
}
message VolumeEcShardReadRequest {
uint32 volume_id = 1;
uint32 shard_id = 2;
int64 offset = 3;
int64 size = 4;
}
message VolumeEcShardReadResponse {
bytes data = 1;
}
message ReadVolumeFileStatusRequest {
uint32 volume_id = 1;
}

368
weed/pb/volume_server_pb/volume_server.pb.go
View file

@ -53,6 +53,8 @@ It has these top-level messages:
VolumeEcShardsMountResponse
VolumeEcShardsUnmountRequest
VolumeEcShardsUnmountResponse
VolumeEcShardReadRequest
VolumeEcShardReadResponse
ReadVolumeFileStatusRequest
ReadVolumeFileStatusResponse
DiskStatus
@ -811,7 +813,7 @@ func (*VolumeEcShardsGenerateResponse) Descriptor() ([]byte, []int) { return fil
type VolumeEcShardsCopyRequest struct {
VolumeId uint32 `protobuf:"varint,1,opt,name=volume_id,json=volumeId" json:"volume_id,omitempty"`
Collection string `protobuf:"bytes,2,opt,name=collection" json:"collection,omitempty"`
EcIndexes []uint32 `protobuf:"varint,3,rep,packed,name=ec_indexes,json=ecIndexes" json:"ec_indexes,omitempty"`
ShardIds []uint32 `protobuf:"varint,3,rep,packed,name=shard_ids,json=shardIds" json:"shard_ids,omitempty"`
SourceDataNode string `protobuf:"bytes,5,opt,name=source_data_node,json=sourceDataNode" json:"source_data_node,omitempty"`
}
@ -834,9 +836,9 @@ func (m *VolumeEcShardsCopyRequest) GetCollection() string {
return ""
}
func (m *VolumeEcShardsCopyRequest) GetEcIndexes() []uint32 {
func (m *VolumeEcShardsCopyRequest) GetShardIds() []uint32 {
if m != nil {
return m.EcIndexes
return m.ShardIds
}
return nil
}
@ -859,7 +861,7 @@ func (*VolumeEcShardsCopyResponse) Descriptor() ([]byte, []int) { return fileDes
type VolumeEcShardsDeleteRequest struct {
VolumeId uint32 `protobuf:"varint,1,opt,name=volume_id,json=volumeId" json:"volume_id,omitempty"`
ShouldDeleteEcx bool `protobuf:"varint,2,opt,name=should_delete_ecx,json=shouldDeleteEcx" json:"should_delete_ecx,omitempty"`
EcIndexes []uint32 `protobuf:"varint,3,rep,packed,name=ec_indexes,json=ecIndexes" json:"ec_indexes,omitempty"`
ShardIds []uint32 `protobuf:"varint,3,rep,packed,name=shard_ids,json=shardIds" json:"shard_ids,omitempty"`
}
func (m *VolumeEcShardsDeleteRequest) Reset() { *m = VolumeEcShardsDeleteRequest{} }
@ -881,9 +883,9 @@ func (m *VolumeEcShardsDeleteRequest) GetShouldDeleteEcx() bool {
return false
}
func (m *VolumeEcShardsDeleteRequest) GetEcIndexes() []uint32 {
func (m *VolumeEcShardsDeleteRequest) GetShardIds() []uint32 {
if m != nil {
return m.EcIndexes
return m.ShardIds
}
return nil
}
@ -899,7 +901,7 @@ func (*VolumeEcShardsDeleteResponse) Descriptor() ([]byte, []int) { return fileD
type VolumeEcShardsMountRequest struct {
VolumeId uint32 `protobuf:"varint,1,opt,name=volume_id,json=volumeId" json:"volume_id,omitempty"`
Collection string `protobuf:"bytes,2,opt,name=collection" json:"collection,omitempty"`
EcIndexes []uint32 `protobuf:"varint,3,rep,packed,name=ec_indexes,json=ecIndexes" json:"ec_indexes,omitempty"`
ShardIds []uint32 `protobuf:"varint,3,rep,packed,name=shard_ids,json=shardIds" json:"shard_ids,omitempty"`
}
func (m *VolumeEcShardsMountRequest) Reset() { *m = VolumeEcShardsMountRequest{} }
@ -921,9 +923,9 @@ func (m *VolumeEcShardsMountRequest) GetCollection() string {
return ""
}
func (m *VolumeEcShardsMountRequest) GetEcIndexes() []uint32 {
func (m *VolumeEcShardsMountRequest) GetShardIds() []uint32 {
if m != nil {
return m.EcIndexes
return m.ShardIds
}
return nil
}
@ -937,8 +939,8 @@ func (*VolumeEcShardsMountResponse) ProtoMessage() {}
func (*VolumeEcShardsMountResponse) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{41} }
type VolumeEcShardsUnmountRequest struct {
VolumeId uint32 `protobuf:"varint,1,opt,name=volume_id,json=volumeId" json:"volume_id,omitempty"`
EcIndexes []uint32 `protobuf:"varint,3,rep,packed,name=ec_indexes,json=ecIndexes" json:"ec_indexes,omitempty"`
VolumeId uint32 `protobuf:"varint,1,opt,name=volume_id,json=volumeId" json:"volume_id,omitempty"`
ShardIds []uint32 `protobuf:"varint,3,rep,packed,name=shard_ids,json=shardIds" json:"shard_ids,omitempty"`
}
func (m *VolumeEcShardsUnmountRequest) Reset() { *m = VolumeEcShardsUnmountRequest{} }
@ -953,9 +955,9 @@ func (m *VolumeEcShardsUnmountRequest) GetVolumeId() uint32 {
return 0
}
func (m *VolumeEcShardsUnmountRequest) GetEcIndexes() []uint32 {
func (m *VolumeEcShardsUnmountRequest) GetShardIds() []uint32 {
if m != nil {
return m.EcIndexes
return m.ShardIds
}
return nil
}
@ -968,6 +970,62 @@ func (m *VolumeEcShardsUnmountResponse) String() string { return prot
func (*VolumeEcShardsUnmountResponse) ProtoMessage() {}
func (*VolumeEcShardsUnmountResponse) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{43} }
type VolumeEcShardReadRequest struct {
VolumeId uint32 `protobuf:"varint,1,opt,name=volume_id,json=volumeId" json:"volume_id,omitempty"`
ShardId uint32 `protobuf:"varint,2,opt,name=shard_id,json=shardId" json:"shard_id,omitempty"`
Offset int64 `protobuf:"varint,3,opt,name=offset" json:"offset,omitempty"`
Size int64 `protobuf:"varint,4,opt,name=size" json:"size,omitempty"`
}
func (m *VolumeEcShardReadRequest) Reset() { *m = VolumeEcShardReadRequest{} }
func (m *VolumeEcShardReadRequest) String() string { return proto.CompactTextString(m) }
func (*VolumeEcShardReadRequest) ProtoMessage() {}
func (*VolumeEcShardReadRequest) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{44} }
func (m *VolumeEcShardReadRequest) GetVolumeId() uint32 {
if m != nil {
return m.VolumeId
}
return 0
}
func (m *VolumeEcShardReadRequest) GetShardId() uint32 {
if m != nil {
return m.ShardId
}
return 0
}
func (m *VolumeEcShardReadRequest) GetOffset() int64 {
if m != nil {
return m.Offset
}
return 0
}
func (m *VolumeEcShardReadRequest) GetSize() int64 {
if m != nil {
return m.Size
}
return 0
}
type VolumeEcShardReadResponse struct {
Data []byte `protobuf:"bytes,1,opt,name=data,proto3" json:"data,omitempty"`
}
func (m *VolumeEcShardReadResponse) Reset() { *m = VolumeEcShardReadResponse{} }
func (m *VolumeEcShardReadResponse) String() string { return proto.CompactTextString(m) }
func (*VolumeEcShardReadResponse) ProtoMessage() {}
func (*VolumeEcShardReadResponse) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{45} }
func (m *VolumeEcShardReadResponse) GetData() []byte {
if m != nil {
return m.Data
}
return nil
}
type ReadVolumeFileStatusRequest struct {
VolumeId uint32 `protobuf:"varint,1,opt,name=volume_id,json=volumeId" json:"volume_id,omitempty"`
}
@ -975,7 +1033,7 @@ type ReadVolumeFileStatusRequest struct {
func (m *ReadVolumeFileStatusRequest) Reset() { *m = ReadVolumeFileStatusRequest{} }
func (m *ReadVolumeFileStatusRequest) String() string { return proto.CompactTextString(m) }
func (*ReadVolumeFileStatusRequest) ProtoMessage() {}
func (*ReadVolumeFileStatusRequest) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{44} }
func (*ReadVolumeFileStatusRequest) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{46} }
func (m *ReadVolumeFileStatusRequest) GetVolumeId() uint32 {
if m != nil {
@ -998,7 +1056,7 @@ type ReadVolumeFileStatusResponse struct {
func (m *ReadVolumeFileStatusResponse) Reset() { *m = ReadVolumeFileStatusResponse{} }
func (m *ReadVolumeFileStatusResponse) String() string { return proto.CompactTextString(m) }
func (*ReadVolumeFileStatusResponse) ProtoMessage() {}
func (*ReadVolumeFileStatusResponse) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{45} }
func (*ReadVolumeFileStatusResponse) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{47} }
func (m *ReadVolumeFileStatusResponse) GetVolumeId() uint32 {
if m != nil {
@ -1066,7 +1124,7 @@ type DiskStatus struct {
func (m *DiskStatus) Reset() { *m = DiskStatus{} }
func (m *DiskStatus) String() string { return proto.CompactTextString(m) }
func (*DiskStatus) ProtoMessage() {}
func (*DiskStatus) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{46} }
func (*DiskStatus) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{48} }
func (m *DiskStatus) GetDir() string {
if m != nil {
@ -1109,7 +1167,7 @@ type MemStatus struct {
func (m *MemStatus) Reset() { *m = MemStatus{} }
func (m *MemStatus) String() string { return proto.CompactTextString(m) }
func (*MemStatus) ProtoMessage() {}
func (*MemStatus) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{47} }
func (*MemStatus) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{49} }
func (m *MemStatus) GetGoroutines() int32 {
if m != nil {
@ -1205,6 +1263,8 @@ func init() {
proto.RegisterType((*VolumeEcShardsMountResponse)(nil), "volume_server_pb.VolumeEcShardsMountResponse")
proto.RegisterType((*VolumeEcShardsUnmountRequest)(nil), "volume_server_pb.VolumeEcShardsUnmountRequest")
proto.RegisterType((*VolumeEcShardsUnmountResponse)(nil), "volume_server_pb.VolumeEcShardsUnmountResponse")
proto.RegisterType((*VolumeEcShardReadRequest)(nil), "volume_server_pb.VolumeEcShardReadRequest")
proto.RegisterType((*VolumeEcShardReadResponse)(nil), "volume_server_pb.VolumeEcShardReadResponse")
proto.RegisterType((*ReadVolumeFileStatusRequest)(nil), "volume_server_pb.ReadVolumeFileStatusRequest")
proto.RegisterType((*ReadVolumeFileStatusResponse)(nil), "volume_server_pb.ReadVolumeFileStatusResponse")
proto.RegisterType((*DiskStatus)(nil), "volume_server_pb.DiskStatus")
@ -1247,6 +1307,7 @@ type VolumeServerClient interface {
VolumeEcShardsDelete(ctx context.Context, in *VolumeEcShardsDeleteRequest, opts ...grpc.CallOption) (*VolumeEcShardsDeleteResponse, error)
VolumeEcShardsMount(ctx context.Context, in *VolumeEcShardsMountRequest, opts ...grpc.CallOption) (*VolumeEcShardsMountResponse, error)
VolumeEcShardsUnmount(ctx context.Context, in *VolumeEcShardsUnmountRequest, opts ...grpc.CallOption) (*VolumeEcShardsUnmountResponse, error)
VolumeEcShardRead(ctx context.Context, in *VolumeEcShardReadRequest, opts ...grpc.CallOption) (VolumeServer_VolumeEcShardReadClient, error)
}
type volumeServerClient struct {
@ -1524,6 +1585,38 @@ func (c *volumeServerClient) VolumeEcShardsUnmount(ctx context.Context, in *Volu
return out, nil
}
func (c *volumeServerClient) VolumeEcShardRead(ctx context.Context, in *VolumeEcShardReadRequest, opts ...grpc.CallOption) (VolumeServer_VolumeEcShardReadClient, error) {
stream, err := grpc.NewClientStream(ctx, &_VolumeServer_serviceDesc.Streams[3], c.cc, "/volume_server_pb.VolumeServer/VolumeEcShardRead", opts...)
if err != nil {
return nil, err
}
x := &volumeServerVolumeEcShardReadClient{stream}
if err := x.ClientStream.SendMsg(in); err != nil {
return nil, err
}
if err := x.ClientStream.CloseSend(); err != nil {
return nil, err
}
return x, nil
}
type VolumeServer_VolumeEcShardReadClient interface {
Recv() (*VolumeEcShardReadResponse, error)
grpc.ClientStream
}
type volumeServerVolumeEcShardReadClient struct {
grpc.ClientStream
}
func (x *volumeServerVolumeEcShardReadClient) Recv() (*VolumeEcShardReadResponse, error) {
m := new(VolumeEcShardReadResponse)
if err := x.ClientStream.RecvMsg(m); err != nil {
return nil, err
}
return m, nil
}
// Server API for VolumeServer service
type VolumeServerServer interface {
@ -1552,6 +1645,7 @@ type VolumeServerServer interface {
VolumeEcShardsDelete(context.Context, *VolumeEcShardsDeleteRequest) (*VolumeEcShardsDeleteResponse, error)
VolumeEcShardsMount(context.Context, *VolumeEcShardsMountRequest) (*VolumeEcShardsMountResponse, error)
VolumeEcShardsUnmount(context.Context, *VolumeEcShardsUnmountRequest) (*VolumeEcShardsUnmountResponse, error)
VolumeEcShardRead(*VolumeEcShardReadRequest, VolumeServer_VolumeEcShardReadServer) error
}
func RegisterVolumeServerServer(s *grpc.Server, srv VolumeServerServer) {
@ -1963,6 +2057,27 @@ func _VolumeServer_VolumeEcShardsUnmount_Handler(srv interface{}, ctx context.Co
return interceptor(ctx, in, info, handler)
}
func _VolumeServer_VolumeEcShardRead_Handler(srv interface{}, stream grpc.ServerStream) error {
m := new(VolumeEcShardReadRequest)
if err := stream.RecvMsg(m); err != nil {
return err
}
return srv.(VolumeServerServer).VolumeEcShardRead(m, &volumeServerVolumeEcShardReadServer{stream})
}
type VolumeServer_VolumeEcShardReadServer interface {
Send(*VolumeEcShardReadResponse) error
grpc.ServerStream
}
type volumeServerVolumeEcShardReadServer struct {
grpc.ServerStream
}
func (x *volumeServerVolumeEcShardReadServer) Send(m *VolumeEcShardReadResponse) error {
return x.ServerStream.SendMsg(m)
}
var _VolumeServer_serviceDesc = grpc.ServiceDesc{
ServiceName: "volume_server_pb.VolumeServer",
HandlerType: (*VolumeServerServer)(nil),
@ -2060,6 +2175,11 @@ var _VolumeServer_serviceDesc = grpc.ServiceDesc{
Handler: _VolumeServer_VolumeTailSender_Handler,
ServerStreams: true,
},
{
StreamName: "VolumeEcShardRead",
Handler: _VolumeServer_VolumeEcShardRead_Handler,
ServerStreams: true,
},
},
Metadata: "volume_server.proto",
}
@ -2067,109 +2187,113 @@ var _VolumeServer_serviceDesc = grpc.ServiceDesc{
func init() { proto.RegisterFile("volume_server.proto", fileDescriptor0) }
var fileDescriptor0 = []byte{
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0x00, 0x00, 0xff, 0xff, 0x67, 0x03, 0x26, 0xea, 0x96, 0x1a, 0x00, 0x00,
}

5
weed/server/volume_grpc_copy.go
View file

@ -16,6 +16,8 @@ import (
"github.com/chrislusf/seaweedfs/weed/util"
)
const BufferSizeLimit = 1024 * 1024 * 2
// VolumeCopy copy the .idx .dat files, and mount the volume
func (vs *VolumeServer) VolumeCopy(ctx context.Context, req *volume_server_pb.VolumeCopyRequest) (*volume_server_pb.VolumeCopyResponse, error) {
@ -190,7 +192,6 @@ func (vs *VolumeServer) CopyFile(req *volume_server_pb.CopyFileRequest, stream v
bytesToRead := int64(req.StopOffset)
const BufferSize = 1024 * 1024 * 2
var fileName = v.FileName() + req.Ext
file, err := os.Open(fileName)
if err != nil {
@ -198,7 +199,7 @@ func (vs *VolumeServer) CopyFile(req *volume_server_pb.CopyFileRequest, stream v
}
defer file.Close()
buffer := make([]byte, BufferSize)
buffer := make([]byte, BufferSizeLimit)
for bytesToRead > 0 {
bytesread, err := file.Read(buffer)

59
weed/server/volume_grpc_erasure_coding.go
View file

@ -3,6 +3,7 @@ package weed_server
import (
"context"
"fmt"
"io"
"math"
"os"
@ -71,8 +72,8 @@ func (vs *VolumeServer) VolumeEcShardsCopy(ctx context.Context, req *volume_serv
}
// copy ec data slices
for _, ecIndex := range req.EcIndexes {
if err := vs.doCopyFile(ctx, client, req.VolumeId, math.MaxUint32, math.MaxInt64, baseFileName, erasure_coding.ToExt(int(ecIndex))); err != nil {
for _, shardId := range req.ShardIds {
if err := vs.doCopyFile(ctx, client, req.VolumeId, math.MaxUint32, math.MaxInt64, baseFileName, erasure_coding.ToExt(int(shardId))); err != nil {
return err
}
}
@ -95,8 +96,8 @@ func (vs *VolumeServer) VolumeEcShardsDelete(ctx context.Context, req *volume_se
}
baseFileName := v.FileName()
for _, shardIndex := range req.EcIndexes {
if err := os.Remove(baseFileName + erasure_coding.ToExt(int(shardIndex))); err != nil {
for _, shardId := range req.ShardIds {
if err := os.Remove(baseFileName + erasure_coding.ToExt(int(shardId))); err != nil {
return nil, err
}
}
@ -112,7 +113,7 @@ func (vs *VolumeServer) VolumeEcShardsDelete(ctx context.Context, req *volume_se
func (vs *VolumeServer) VolumeEcShardsMount(ctx context.Context, req *volume_server_pb.VolumeEcShardsMountRequest) (*volume_server_pb.VolumeEcShardsMountResponse, error) {
for _, shardId := range req.EcIndexes {
for _, shardId := range req.ShardIds {
err := vs.store.MountEcShards(req.Collection, needle.VolumeId(req.VolumeId), erasure_coding.ShardId(shardId))
if err != nil {
@ -131,7 +132,7 @@ func (vs *VolumeServer) VolumeEcShardsMount(ctx context.Context, req *volume_ser
func (vs *VolumeServer) VolumeEcShardsUnmount(ctx context.Context, req *volume_server_pb.VolumeEcShardsUnmountRequest) (*volume_server_pb.VolumeEcShardsUnmountResponse, error) {
for _, shardId := range req.EcIndexes {
for _, shardId := range req.ShardIds {
err := vs.store.UnmountEcShards(needle.VolumeId(req.VolumeId), erasure_coding.ShardId(shardId))
if err != nil {
@ -147,3 +148,49 @@ func (vs *VolumeServer) VolumeEcShardsUnmount(ctx context.Context, req *volume_s
return &volume_server_pb.VolumeEcShardsUnmountResponse{}, nil
}
func (vs *VolumeServer) VolumeEcShardRead(req *volume_server_pb.VolumeEcShardReadRequest, stream volume_server_pb.VolumeServer_VolumeEcShardReadServer) error {
ecShards, found := vs.store.HasEcShard(needle.VolumeId(req.VolumeId))
if !found {
return fmt.Errorf("not found ec volume id %d", req.VolumeId)
}
ecShard, found := ecShards.FindEcVolumeShard(erasure_coding.ShardId(req.ShardId))
if !found {
return fmt.Errorf("not found ec shard %d.%d", req.VolumeId, req.ShardId)
}
buffer := make([]byte, BufferSizeLimit)
startOffset, bytesToRead := req.Offset, req.Size
for bytesToRead > 0 {
bytesread, err := ecShard.ReadAt(buffer, startOffset)
// println(fileName, "read", bytesread, "bytes, with target", bytesToRead)
if err != nil {
if err != io.EOF {
return err
}
// println(fileName, "read", bytesread, "bytes, with target", bytesToRead, "err", err.Error())
break
}
if int64(bytesread) > bytesToRead {
bytesread = int(bytesToRead)
}
err = stream.Send(&volume_server_pb.VolumeEcShardReadResponse{
Data: buffer[:bytesread],
})
if err != nil {
// println("sending", bytesread, "bytes err", err.Error())
return err
}
bytesToRead -= int64(bytesread)
}
return nil
}

5
weed/server/volume_grpc_tail.go
View file

@ -69,12 +69,11 @@ func sendNeedlesSince(stream volume_server_pb.VolumeServer_VolumeTailSenderServe
err = storage.ScanVolumeFileNeedleFrom(v.Version(), v.DataFile(), foundOffset.ToAcutalOffset(), func(needleHeader, needleBody []byte, needleAppendAtNs uint64) error {
blockSizeLimit := 1024 * 1024 * 2
isLastChunk := false
// need to send body by chunks
for i := 0; i < len(needleBody); i += blockSizeLimit {
stopOffset := i + blockSizeLimit
for i := 0; i < len(needleBody); i += BufferSizeLimit {
stopOffset := i + BufferSizeLimit
if stopOffset >= len(needleBody) {
isLastChunk = true
stopOffset = len(needleBody)

6
weed/shell/command_ec_encode.go
View file

@ -208,7 +208,7 @@ func oneServerCopyEcShardsFromSource(ctx context.Context, grpcDialOption grpc.Di
_, copyErr := volumeServerClient.VolumeEcShardsCopy(ctx, &volume_server_pb.VolumeEcShardsCopyRequest{
VolumeId: uint32(volumeId),
Collection: collection,
EcIndexes: copiedShardIds,
ShardIds: copiedShardIds,
SourceDataNode: existingLocation.Url,
})
if copyErr != nil {
@ -219,7 +219,7 @@ func oneServerCopyEcShardsFromSource(ctx context.Context, grpcDialOption grpc.Di
_, mountErr := volumeServerClient.VolumeEcShardsMount(ctx, &volume_server_pb.VolumeEcShardsMountRequest{
VolumeId: uint32(volumeId),
Collection: collection,
EcIndexes: copiedShardIds,
ShardIds: copiedShardIds,
})
if mountErr != nil {
return mountErr
@ -243,7 +243,7 @@ func sourceServerDeleteEcShards(ctx context.Context, grpcDialOption grpc.DialOpt
return operation.WithVolumeServerClient(sourceLocation.Url, grpcDialOption, func(volumeServerClient volume_server_pb.VolumeServerClient) error {
_, deleteErr := volumeServerClient.VolumeEcShardsDelete(ctx, &volume_server_pb.VolumeEcShardsDeleteRequest{
VolumeId: uint32(volumeId),
EcIndexes: toBeDeletedShardIds,
ShardIds: toBeDeletedShardIds,
ShouldDeleteEcx: shouldDeleteEcx,
})
return deleteErr

12
weed/storage/erasure_coding/ec_locate.go
View file

@ -69,3 +69,15 @@ func locateOffsetWithinBlocks(blockLength int64, offset int64) (blockIndex int,
innerBlockOffset = offset % blockLength
return
}
func (interval Interval) ToShardIdAndOffset(largeBlockSize, smallBlockSize int64) (ShardId, int64) {
ecFileOffset := interval.InnerBlockOffset
rowIndex := interval.BlockIndex / DataShardsCount
if interval.IsLargeBlock {
ecFileOffset += int64(rowIndex) * largeBlockSize
} else {
ecFileOffset += int64(interval.LargeBlockRowsCount)*largeBlockSize + int64(rowIndex)*smallBlockSize
}
ecFileIndex := interval.BlockIndex % DataShardsCount
return ShardId(ecFileIndex), ecFileOffset
}

6
weed/storage/erasure_coding/ec_shard.go
View file

@ -105,3 +105,9 @@ func (shard *EcVolumeShard) findNeedleFromEcx(needleId types.NeedleId) (offset t
err = fmt.Errorf("needle id %d not found", needleId)
return
}
func (shard *EcVolumeShard) ReadAt(buf []byte, offset int64) (int, error) {
return shard.ecdFile.ReadAt(buf, offset)
}

19
weed/storage/erasure_coding/ec_test.go
View file

@ -105,10 +105,8 @@ func readEcFile(datSize int64, ecFiles []*os.File, offset types.Offset, size uin
intervals := LocateData(largeBlockSize, smallBlockSize, datSize, offset.ToAcutalOffset(), size)
nLargeBlockRows := int(datSize / (largeBlockSize * DataShardsCount))
for i, interval := range intervals {
if d, e := readOneInterval(interval, ecFiles, nLargeBlockRows); e != nil {
if d, e := readOneInterval(interval, ecFiles); e != nil {
return nil, e
} else {
if i == 0 {
@ -122,21 +120,14 @@ func readEcFile(datSize int64, ecFiles []*os.File, offset types.Offset, size uin
return data, nil
}
func readOneInterval(interval Interval, ecFiles []*os.File, nLargeBlockRows int) (data []byte, err error) {
ecFileOffset := interval.InnerBlockOffset
rowIndex := interval.BlockIndex / DataShardsCount
if interval.IsLargeBlock {
ecFileOffset += int64(rowIndex) * largeBlockSize
} else {
ecFileOffset += int64(nLargeBlockRows)*largeBlockSize + int64(rowIndex)*smallBlockSize
}
func readOneInterval(interval Interval, ecFiles []*os.File) (data []byte, err error) {
ecFileIndex := interval.BlockIndex % DataShardsCount
ecFileOffset, ecFileIndex := interval.ToShardIdAndOffset(largeBlockSize, smallBlockSize)
data = make([]byte, interval.Size)
err = readFromFile(ecFiles[ecFileIndex], data, ecFileOffset)
{ // do some ec testing
ecData, err := readFromOtherEcFiles(ecFiles, ecFileIndex, ecFileOffset, interval.Size)
ecData, err := readFromOtherEcFiles(ecFiles, int(ecFileIndex), ecFileOffset, interval.Size)
if err != nil {
return nil, fmt.Errorf("ec reconstruct error: %v", err)
}
@ -198,7 +189,7 @@ func TestLocateData(t *testing.T) {
if len(intervals) != 1 {
t.Errorf("unexpected interval size %d", len(intervals))
}
if !intervals[0].sameAs(Interval{0, 0, 1, false}) {
if !intervals[0].sameAs(Interval{0, 0, 1, false, 1}) {
t.Errorf("unexpected interval %+v", intervals[0])
}

13
weed/storage/erasure_coding/ec_volume.go
View file

@ -6,6 +6,7 @@ import (
"github.com/chrislusf/seaweedfs/weed/pb/master_pb"
"github.com/chrislusf/seaweedfs/weed/storage/needle"
"github.com/chrislusf/seaweedfs/weed/storage/types"
)
type EcVolumeShards []*EcVolumeShard
@ -71,19 +72,17 @@ func (shards *EcVolumeShards) ToVolumeEcShardInformationMessage() (messages []*m
return
}
func (shards *EcVolumeShards) ReadEcShardNeedle(n *needle.Needle) (int, error) {
func (shards *EcVolumeShards) LocateEcShardNeedle(n *needle.Needle) (offset types.Offset, size uint32, intervals []Interval, err error) {
shard := (*shards)[0]
// find the needle from ecx file
offset, size, err := shard.findNeedleFromEcx(n.Id)
offset, size, err = shard.findNeedleFromEcx(n.Id)
if err != nil {
return 0, err
return types.Offset{}, 0, nil, err
}
// calculate the locations in the ec shards
intervals := LocateData(ErasureCodingLargeBlockSize, ErasureCodingSmallBlockSize, shard.ecxFileSize, offset.ToAcutalOffset(), size)
intervals = LocateData(ErasureCodingLargeBlockSize, ErasureCodingSmallBlockSize, shard.ecxFileSize, offset.ToAcutalOffset(), size)
// TODO read the intervals
return len(intervals), nil
return
}

16
weed/storage/needle/needle_read_write.go
View file

@ -170,11 +170,8 @@ func ReadNeedleBlob(r *os.File, offset int64, size uint32, version Version) (dat
return dataSlice, err
}
func (n *Needle) ReadData(r *os.File, offset int64, size uint32, version Version) (err error) {
bytes, err := ReadNeedleBlob(r, offset, size, version)
if err != nil {
return err
}
// ReadBytes hydrates the needle from the bytes buffer, with only n.Id is set.
func (n *Needle) ReadBytes(bytes []byte, offset int64, size uint32, version Version) (err error) {
n.ParseNeedleHeader(bytes)
if n.Size != size {
return fmt.Errorf("File Entry Not Found. offset %d, Needle id %d expected size %d Memory %d", offset, n.Id, n.Size, size)
@ -203,6 +200,15 @@ func (n *Needle) ReadData(r *os.File, offset int64, size uint32, version Version
return nil
}
// ReadData hydrates the needle from the file, with only n.Id is set.
func (n *Needle) ReadData(r *os.File, offset int64, size uint32, version Version) (err error) {
bytes, err := ReadNeedleBlob(r, offset, size, version)
if err != nil {
return err
}
return n.ReadBytes(bytes, offset, size, version)
}
func (n *Needle) ParseNeedleHeader(bytes []byte) {
n.Cookie = BytesToCookie(bytes[0:CookieSize])
n.Id = BytesToNeedleId(bytes[CookieSize : CookieSize+NeedleIdSize])

57
weed/storage/store_ec.go
View file

@ -89,9 +89,62 @@ func (s *Store) HasEcShard(vid needle.VolumeId) (erasure_coding.EcVolumeShards,
func (s *Store) ReadEcShardNeedle(vid needle.VolumeId, n *needle.Needle) (int, error) {
for _, location := range s.Locations {
if ecShards, found := location.HasEcShard(vid); found {
return ecShards.ReadEcShardNeedle(n)
if localEcShards, found := location.HasEcShard(vid); found {
offset, size, intervals, err := localEcShards.LocateEcShardNeedle(n)
if err != nil {
return 0, err
}
bytes, err := s.ReadEcShardIntervals(vid, localEcShards, intervals)
if err != nil {
return 0, fmt.Errorf("ReadEcShardIntervals: %v", err)
}
version := needle.CurrentVersion
err = n.ReadBytes(bytes, offset.ToAcutalOffset(), size, version)
if err != nil {
return 0, fmt.Errorf("readbytes: %v", err)
}
return len(bytes), nil
}
}
return 0, fmt.Errorf("ec shard %d not found", vid)
}
func (s *Store) ReadEcShardIntervals(vid needle.VolumeId, localEcShards erasure_coding.EcVolumeShards, intervals []erasure_coding.Interval) (data []byte, err error) {
for i, interval := range intervals {
if d, e := s.readOneEcShardInterval(vid, localEcShards, interval); e != nil {
return nil, e
} else {
if i == 0 {
data = d
} else {
data = append(data, d...)
}
}
}
return
}
func (s *Store) readOneEcShardInterval(vid needle.VolumeId, localEcShards erasure_coding.EcVolumeShards, interval erasure_coding.Interval) (data []byte, err error) {
shardId, actualOffset := interval.ToShardIdAndOffset(erasure_coding.ErasureCodingLargeBlockSize, erasure_coding.ErasureCodingSmallBlockSize)
data = make([]byte, interval.Size)
if shard, found := localEcShards.FindEcVolumeShard(shardId); found {
if _, err = shard.ReadAt(data, actualOffset); err != nil {
return
}
} else {
s.readOneRemoteEcShardInterval(vid, shardId, data, actualOffset)
}
return
}
func (s *Store) readOneRemoteEcShardInterval(vid needle.VolumeId, shardId erasure_coding.ShardId, buf []byte, offset int64) (n int, err error) {
return
}