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support atomic renaming for mysql/postgres filer store

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This commit is contained in:
Chris Lu
2019-03-30 23:08:29 -07:00
parent 920b4e56aa
commit 97406333a5
17 changed files with 517 additions and 285 deletions
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44
weed/filer2/abstract_sql/abstract_sql_store.go
View File

@@ -19,6 +19,40 @@ type AbstractSqlStore struct {
SqlListInclusive string
}
type TxOrDB interface {
ExecContext(ctx context.Context, query string, args ...interface{}) (sql.Result, error)
QueryRowContext(ctx context.Context, query string, args ...interface{}) *sql.Row
QueryContext(ctx context.Context, query string, args ...interface{}) (*sql.Rows, error)
}
func (store *AbstractSqlStore) BeginTransaction(ctx context.Context) (context.Context, error) {
tx, err := store.DB.BeginTx(ctx, nil)
if err != nil {
return ctx, err
}
return context.WithValue(ctx, "tx", tx), nil
}
func (store *AbstractSqlStore) CommitTransaction(ctx context.Context) error {
if tx, ok := ctx.Value("tx").(*sql.Tx); ok {
return tx.Commit()
}
return nil
}
func (store *AbstractSqlStore) RollbackTransaction(ctx context.Context) error {
if tx, ok := ctx.Value("tx").(*sql.Tx); ok {
return tx.Rollback()
}
return nil
}
func (store *AbstractSqlStore) getTxOrDB(ctx context.Context) TxOrDB {
if tx, ok := ctx.Value("tx").(*sql.Tx); ok {
return tx
}
return store.DB
}
func (store *AbstractSqlStore) InsertEntry(ctx context.Context, entry *filer2.Entry) (err error) {
dir, name := entry.FullPath.DirAndName()
@@ -27,7 +61,7 @@ func (store *AbstractSqlStore) InsertEntry(ctx context.Context, entry *filer2.En
return fmt.Errorf("encode %s: %s", entry.FullPath, err)
}
res, err := store.DB.Exec(store.SqlInsert, hashToLong(dir), name, dir, meta)
res, err := store.getTxOrDB(ctx).ExecContext(ctx, store.SqlInsert, hashToLong(dir), name, dir, meta)
if err != nil {
return fmt.Errorf("insert %s: %s", entry.FullPath, err)
}
@@ -47,7 +81,7 @@ func (store *AbstractSqlStore) UpdateEntry(ctx context.Context, entry *filer2.En
return fmt.Errorf("encode %s: %s", entry.FullPath, err)
}
res, err := store.DB.Exec(store.SqlUpdate, meta, hashToLong(dir), name, dir)
res, err := store.getTxOrDB(ctx).ExecContext(ctx, store.SqlUpdate, meta, hashToLong(dir), name, dir)
if err != nil {
return fmt.Errorf("update %s: %s", entry.FullPath, err)
}
@@ -62,7 +96,7 @@ func (store *AbstractSqlStore) UpdateEntry(ctx context.Context, entry *filer2.En
func (store *AbstractSqlStore) FindEntry(ctx context.Context, fullpath filer2.FullPath) (*filer2.Entry, error) {
dir, name := fullpath.DirAndName()
row := store.DB.QueryRow(store.SqlFind, hashToLong(dir), name, dir)
row := store.getTxOrDB(ctx).QueryRowContext(ctx, store.SqlFind, hashToLong(dir), name, dir)
var data []byte
if err := row.Scan(&data); err != nil {
return nil, filer2.ErrNotFound
@@ -82,7 +116,7 @@ func (store *AbstractSqlStore) DeleteEntry(ctx context.Context, fullpath filer2.
dir, name := fullpath.DirAndName()
res, err := store.DB.Exec(store.SqlDelete, hashToLong(dir), name, dir)
res, err := store.getTxOrDB(ctx).ExecContext(ctx, store.SqlDelete, hashToLong(dir), name, dir)
if err != nil {
return fmt.Errorf("delete %s: %s", fullpath, err)
}
@@ -102,7 +136,7 @@ func (store *AbstractSqlStore) ListDirectoryEntries(ctx context.Context, fullpat
sqlText = store.SqlListInclusive
}
rows, err := store.DB.Query(sqlText, hashToLong(string(fullpath)), startFileName, string(fullpath), limit)
rows, err := store.getTxOrDB(ctx).QueryContext(ctx, sqlText, hashToLong(string(fullpath)), startFileName, string(fullpath), limit)
if err != nil {
return nil, fmt.Errorf("list %s : %v", fullpath, err)
}

10
weed/filer2/cassandra/cassandra_store.go
View File

@@ -40,6 +40,16 @@ func (store *CassandraStore) initialize(keyspace string, hosts []string) (err er
return
}
func (store *CassandraStore) BeginTransaction(ctx context.Context) (context.Context, error){
return ctx, nil
}
func (store *CassandraStore) CommitTransaction(ctx context.Context) error{
return nil
}
func (store *CassandraStore) RollbackTransaction(ctx context.Context) error{
return nil
}
func (store *CassandraStore) InsertEntry(ctx context.Context, entry *filer2.Entry) (err error) {
dir, name := entry.FullPath.DirAndName()

12
weed/filer2/filer.go
View File

@@ -57,6 +57,18 @@ func (fs *Filer) KeepConnectedToMaster() {
fs.MasterClient.KeepConnectedToMaster()
}
func (f *Filer) BeginTransaction(ctx context.Context) (context.Context, error) {
return f.store.BeginTransaction(ctx)
}
func (f *Filer) CommitTransaction(ctx context.Context) error {
return f.store.CommitTransaction(ctx)
}
func (f *Filer) RollbackTransaction(ctx context.Context) error {
return f.store.RollbackTransaction(ctx)
}
func (f *Filer) CreateEntry(ctx context.Context, entry *Entry) error {
if string(entry.FullPath) == "/" {

4
weed/filer2/filerstore.go
View File

@@ -17,6 +17,10 @@ type FilerStore interface {
FindEntry(context.Context, FullPath) (entry *Entry, err error)
DeleteEntry(context.Context, FullPath) (err error)
ListDirectoryEntries(ctx context.Context, dirPath FullPath, startFileName string, includeStartFile bool, limit int) ([]*Entry, error)
BeginTransaction(ctx context.Context) (context.Context, error)
CommitTransaction(ctx context.Context) error
RollbackTransaction(ctx context.Context) error
}
var ErrNotFound = errors.New("filer: no entry is found in filer store")

13
weed/filer2/fullpath.go
View File

@@ -8,10 +8,7 @@ import (
type FullPath string
func NewFullPath(dir, name string) FullPath {
if strings.HasSuffix(dir, "/") {
return FullPath(dir + name)
}
return FullPath(dir + "/" + name)
return FullPath(dir).Child(name)
}
func (fp FullPath) DirAndName() (string, string) {
@@ -29,3 +26,11 @@ func (fp FullPath) Name() string {
_, name := filepath.Split(string(fp))
return name
}
func (fp FullPath) Child(name string) FullPath {
dir := string(fp)
if strings.HasSuffix(dir, "/") {
return FullPath(dir + name)
}
return FullPath(dir + "/" + name)
}

10
weed/filer2/leveldb/leveldb_store.go
View File

@@ -46,6 +46,16 @@ func (store *LevelDBStore) initialize(dir string) (err error) {
return
}
func (store *LevelDBStore) BeginTransaction(ctx context.Context) (context.Context, error){
return ctx, nil
}
func (store *LevelDBStore) CommitTransaction(ctx context.Context) error{
return nil
}
func (store *LevelDBStore) RollbackTransaction(ctx context.Context) error{
return nil
}
func (store *LevelDBStore) InsertEntry(ctx context.Context, entry *filer2.Entry) (err error) {
key := genKey(entry.DirAndName())

10
weed/filer2/memdb/memdb_store.go
View File

@@ -34,6 +34,16 @@ func (store *MemDbStore) Initialize(configuration util.Configuration) (err error
return nil
}
func (store *MemDbStore) BeginTransaction(ctx context.Context) (context.Context, error){
return ctx, nil
}
func (store *MemDbStore) CommitTransaction(ctx context.Context) error{
return nil
}
func (store *MemDbStore) RollbackTransaction(ctx context.Context) error{
return nil
}
func (store *MemDbStore) InsertEntry(ctx context.Context, entry *filer2.Entry) (err error) {
// println("inserting", entry.FullPath)
store.tree.ReplaceOrInsert(entryItem{entry})

10
weed/filer2/redis/universal_redis_store.go
View File

@@ -19,6 +19,16 @@ type UniversalRedisStore struct {
Client redis.UniversalClient
}
func (store *UniversalRedisStore) BeginTransaction(ctx context.Context) (context.Context, error){
return ctx, nil
}
func (store *UniversalRedisStore) CommitTransaction(ctx context.Context) error{
return nil
}
func (store *UniversalRedisStore) RollbackTransaction(ctx context.Context) error{
return nil
}
func (store *UniversalRedisStore) InsertEntry(ctx context.Context, entry *filer2.Entry) (err error) {
value, err := entry.EncodeAttributesAndChunks()

106
weed/filesys/dir_rename.go
View File

@@ -2,13 +2,10 @@ package filesys
import (
"context"
"fmt"
"github.com/chrislusf/seaweedfs/weed/pb/filer_pb"
"github.com/seaweedfs/fuse"
"github.com/seaweedfs/fuse/fs"
"math"
"path/filepath"
"github.com/chrislusf/seaweedfs/weed/glog"
"github.com/chrislusf/seaweedfs/weed/pb/filer_pb"
)
func (dir *Dir) Rename(ctx context.Context, req *fuse.RenameRequest, newDirectory fs.Node) error {
@@ -17,103 +14,20 @@ func (dir *Dir) Rename(ctx context.Context, req *fuse.RenameRequest, newDirector
return dir.wfs.withFilerClient(ctx, func(client filer_pb.SeaweedFilerClient) error {
// find existing entry
request := &filer_pb.LookupDirectoryEntryRequest{
Directory: dir.Path,
Name: req.OldName,
request := &filer_pb.AtomicRenameEntryRequest{
OldDirectory: dir.Path,
OldName: req.OldName,
NewDirectory: newDir.Path,
NewName: req.NewName,
}
glog.V(4).Infof("find existing directory entry: %v", request)
resp, err := client.LookupDirectoryEntry(ctx, request)
_, err := client.AtomicRenameEntry(ctx, request)
if err != nil {
glog.V(3).Infof("renaming find %s/%s: %v", dir.Path, req.OldName, err)
return fuse.ENOENT
return fmt.Errorf("renaming %s/%s => %s/%s: %v", dir.Path, req.OldName, newDir.Path, req.NewName, err)
}
entry := resp.Entry
return nil
glog.V(4).Infof("found existing directory entry resp: %+v", resp)
return moveEntry(ctx, client, dir.Path, entry, newDir.Path, req.NewName)
})
}
func moveEntry(ctx context.Context, client filer_pb.SeaweedFilerClient, oldParent string, entry *filer_pb.Entry, newParent, newName string) error {
if entry.IsDirectory {
currentDirPath := filepath.ToSlash(filepath.Join(oldParent, entry.Name))
lastFileName := ""
includeLastFile := false
limit := math.MaxInt32
for limit > 0 {
request := &filer_pb.ListEntriesRequest{
Directory: currentDirPath,
StartFromFileName: lastFileName,
InclusiveStartFrom: includeLastFile,
Limit: 1024,
}
glog.V(4).Infof("read directory: %v", request)
resp, err := client.ListEntries(ctx, request)
if err != nil {
glog.V(0).Infof("list %s: %v", oldParent, err)
return fuse.EIO
}
if len(resp.Entries) == 0 {
break
}
for _, item := range resp.Entries {
lastFileName = item.Name
err := moveEntry(ctx, client, currentDirPath, item, filepath.ToSlash(filepath.Join(newParent, newName)), item.Name)
if err != nil {
return err
}
limit--
}
if len(resp.Entries) < 1024 {
break
}
}
}
// add to new directory
{
request := &filer_pb.CreateEntryRequest{
Directory: newParent,
Entry: &filer_pb.Entry{
Name: newName,
IsDirectory: entry.IsDirectory,
Attributes: entry.Attributes,
Chunks: entry.Chunks,
},
}
glog.V(1).Infof("create new entry: %v", request)
if _, err := client.CreateEntry(ctx, request); err != nil {
glog.V(0).Infof("renaming create %s/%s: %v", newParent, newName, err)
return fuse.EIO
}
}
// delete old entry
{
request := &filer_pb.DeleteEntryRequest{
Directory: oldParent,
Name: entry.Name,
IsDeleteData: false,
}
glog.V(1).Infof("remove old entry: %v", request)
_, err := client.DeleteEntry(ctx, request)
if err != nil {
glog.V(0).Infof("renaming delete %s/%s: %v", oldParent, entry.Name, err)
return fuse.EIO
}
}
return nil
}

13
weed/pb/filer.proto
View File

@@ -24,6 +24,9 @@ service SeaweedFiler {
rpc DeleteEntry (DeleteEntryRequest) returns (DeleteEntryResponse) {
}
rpc AtomicRenameEntry (AtomicRenameEntryRequest) returns (AtomicRenameEntryResponse) {
}
rpc AssignVolume (AssignVolumeRequest) returns (AssignVolumeResponse) {
}
@@ -126,6 +129,16 @@ message DeleteEntryRequest {
message DeleteEntryResponse {
}
message AtomicRenameEntryRequest {
string old_directory = 1;
string old_name = 2;
string new_directory = 3;
string new_name = 4;
}
message AtomicRenameEntryResponse {
}
message AssignVolumeRequest {
int32 count = 1;
string collection = 2;

276
weed/pb/filer_pb/filer.pb.go
View File

@@ -23,6 +23,8 @@ It has these top-level messages:
UpdateEntryResponse
DeleteEntryRequest
DeleteEntryResponse
AtomicRenameEntryRequest
AtomicRenameEntryResponse
AssignVolumeRequest
AssignVolumeResponse
LookupVolumeRequest
@@ -521,6 +523,54 @@ func (m *DeleteEntryResponse) String() string { return proto.CompactT
func (*DeleteEntryResponse) ProtoMessage() {}
func (*DeleteEntryResponse) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{13} }
type AtomicRenameEntryRequest struct {
OldDirectory string `protobuf:"bytes,1,opt,name=old_directory,json=oldDirectory" json:"old_directory,omitempty"`
OldName string `protobuf:"bytes,2,opt,name=old_name,json=oldName" json:"old_name,omitempty"`
NewDirectory string `protobuf:"bytes,3,opt,name=new_directory,json=newDirectory" json:"new_directory,omitempty"`
NewName string `protobuf:"bytes,4,opt,name=new_name,json=newName" json:"new_name,omitempty"`
}
func (m *AtomicRenameEntryRequest) Reset() { *m = AtomicRenameEntryRequest{} }
func (m *AtomicRenameEntryRequest) String() string { return proto.CompactTextString(m) }
func (*AtomicRenameEntryRequest) ProtoMessage() {}
func (*AtomicRenameEntryRequest) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{14} }
func (m *AtomicRenameEntryRequest) GetOldDirectory() string {
if m != nil {
return m.OldDirectory
}
return ""
}
func (m *AtomicRenameEntryRequest) GetOldName() string {
if m != nil {
return m.OldName
}
return ""
}
func (m *AtomicRenameEntryRequest) GetNewDirectory() string {
if m != nil {
return m.NewDirectory
}
return ""
}
func (m *AtomicRenameEntryRequest) GetNewName() string {
if m != nil {
return m.NewName
}
return ""
}
type AtomicRenameEntryResponse struct {
}
func (m *AtomicRenameEntryResponse) Reset() { *m = AtomicRenameEntryResponse{} }
func (m *AtomicRenameEntryResponse) String() string { return proto.CompactTextString(m) }
func (*AtomicRenameEntryResponse) ProtoMessage() {}
func (*AtomicRenameEntryResponse) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{15} }
type AssignVolumeRequest struct {
Count int32 `protobuf:"varint,1,opt,name=count" json:"count,omitempty"`
Collection string `protobuf:"bytes,2,opt,name=collection" json:"collection,omitempty"`
@@ -532,7 +582,7 @@ type AssignVolumeRequest struct {
func (m *AssignVolumeRequest) Reset() { *m = AssignVolumeRequest{} }
func (m *AssignVolumeRequest) String() string { return proto.CompactTextString(m) }
func (*AssignVolumeRequest) ProtoMessage() {}
func (*AssignVolumeRequest) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{14} }
func (*AssignVolumeRequest) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{16} }
func (m *AssignVolumeRequest) GetCount() int32 {
if m != nil {
@@ -580,7 +630,7 @@ type AssignVolumeResponse struct {
func (m *AssignVolumeResponse) Reset() { *m = AssignVolumeResponse{} }
func (m *AssignVolumeResponse) String() string { return proto.CompactTextString(m) }
func (*AssignVolumeResponse) ProtoMessage() {}
func (*AssignVolumeResponse) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{15} }
func (*AssignVolumeResponse) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{17} }
func (m *AssignVolumeResponse) GetFileId() string {
if m != nil {
@@ -624,7 +674,7 @@ type LookupVolumeRequest struct {
func (m *LookupVolumeRequest) Reset() { *m = LookupVolumeRequest{} }
func (m *LookupVolumeRequest) String() string { return proto.CompactTextString(m) }
func (*LookupVolumeRequest) ProtoMessage() {}
func (*LookupVolumeRequest) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{16} }
func (*LookupVolumeRequest) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{18} }
func (m *LookupVolumeRequest) GetVolumeIds() []string {
if m != nil {
@@ -640,7 +690,7 @@ type Locations struct {
func (m *Locations) Reset() { *m = Locations{} }
func (m *Locations) String() string { return proto.CompactTextString(m) }
func (*Locations) ProtoMessage() {}
func (*Locations) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{17} }
func (*Locations) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{19} }
func (m *Locations) GetLocations() []*Location {
if m != nil {
@@ -657,7 +707,7 @@ type Location struct {
func (m *Location) Reset() { *m = Location{} }
func (m *Location) String() string { return proto.CompactTextString(m) }
func (*Location) ProtoMessage() {}
func (*Location) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{18} }
func (*Location) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{20} }
func (m *Location) GetUrl() string {
if m != nil {
@@ -680,7 +730,7 @@ type LookupVolumeResponse struct {
func (m *LookupVolumeResponse) Reset() { *m = LookupVolumeResponse{} }
func (m *LookupVolumeResponse) String() string { return proto.CompactTextString(m) }
func (*LookupVolumeResponse) ProtoMessage() {}
func (*LookupVolumeResponse) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{19} }
func (*LookupVolumeResponse) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{21} }
func (m *LookupVolumeResponse) GetLocationsMap() map[string]*Locations {
if m != nil {
@@ -696,7 +746,7 @@ type DeleteCollectionRequest struct {
func (m *DeleteCollectionRequest) Reset() { *m = DeleteCollectionRequest{} }
func (m *DeleteCollectionRequest) String() string { return proto.CompactTextString(m) }
func (*DeleteCollectionRequest) ProtoMessage() {}
func (*DeleteCollectionRequest) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{20} }
func (*DeleteCollectionRequest) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{22} }
func (m *DeleteCollectionRequest) GetCollection() string {
if m != nil {
@@ -711,7 +761,7 @@ type DeleteCollectionResponse struct {
func (m *DeleteCollectionResponse) Reset() { *m = DeleteCollectionResponse{} }
func (m *DeleteCollectionResponse) String() string { return proto.CompactTextString(m) }
func (*DeleteCollectionResponse) ProtoMessage() {}
func (*DeleteCollectionResponse) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{21} }
func (*DeleteCollectionResponse) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{23} }
type StatisticsRequest struct {
Replication string `protobuf:"bytes,1,opt,name=replication" json:"replication,omitempty"`
@@ -722,7 +772,7 @@ type StatisticsRequest struct {
func (m *StatisticsRequest) Reset() { *m = StatisticsRequest{} }
func (m *StatisticsRequest) String() string { return proto.CompactTextString(m) }
func (*StatisticsRequest) ProtoMessage() {}
func (*StatisticsRequest) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{22} }
func (*StatisticsRequest) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{24} }
func (m *StatisticsRequest) GetReplication() string {
if m != nil {
@@ -757,7 +807,7 @@ type StatisticsResponse struct {
func (m *StatisticsResponse) Reset() { *m = StatisticsResponse{} }
func (m *StatisticsResponse) String() string { return proto.CompactTextString(m) }
func (*StatisticsResponse) ProtoMessage() {}
func (*StatisticsResponse) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{23} }
func (*StatisticsResponse) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{25} }
func (m *StatisticsResponse) GetReplication() string {
if m != nil {
@@ -816,6 +866,8 @@ func init() {
proto.RegisterType((*UpdateEntryResponse)(nil), "filer_pb.UpdateEntryResponse")
proto.RegisterType((*DeleteEntryRequest)(nil), "filer_pb.DeleteEntryRequest")
proto.RegisterType((*DeleteEntryResponse)(nil), "filer_pb.DeleteEntryResponse")
proto.RegisterType((*AtomicRenameEntryRequest)(nil), "filer_pb.AtomicRenameEntryRequest")
proto.RegisterType((*AtomicRenameEntryResponse)(nil), "filer_pb.AtomicRenameEntryResponse")
proto.RegisterType((*AssignVolumeRequest)(nil), "filer_pb.AssignVolumeRequest")
proto.RegisterType((*AssignVolumeResponse)(nil), "filer_pb.AssignVolumeResponse")
proto.RegisterType((*LookupVolumeRequest)(nil), "filer_pb.LookupVolumeRequest")
@@ -844,6 +896,7 @@ type SeaweedFilerClient interface {
CreateEntry(ctx context.Context, in *CreateEntryRequest, opts ...grpc.CallOption) (*CreateEntryResponse, error)
UpdateEntry(ctx context.Context, in *UpdateEntryRequest, opts ...grpc.CallOption) (*UpdateEntryResponse, error)
DeleteEntry(ctx context.Context, in *DeleteEntryRequest, opts ...grpc.CallOption) (*DeleteEntryResponse, error)
AtomicRenameEntry(ctx context.Context, in *AtomicRenameEntryRequest, opts ...grpc.CallOption) (*AtomicRenameEntryResponse, error)
AssignVolume(ctx context.Context, in *AssignVolumeRequest, opts ...grpc.CallOption) (*AssignVolumeResponse, error)
LookupVolume(ctx context.Context, in *LookupVolumeRequest, opts ...grpc.CallOption) (*LookupVolumeResponse, error)
DeleteCollection(ctx context.Context, in *DeleteCollectionRequest, opts ...grpc.CallOption) (*DeleteCollectionResponse, error)
@@ -903,6 +956,15 @@ func (c *seaweedFilerClient) DeleteEntry(ctx context.Context, in *DeleteEntryReq
return out, nil
}
func (c *seaweedFilerClient) AtomicRenameEntry(ctx context.Context, in *AtomicRenameEntryRequest, opts ...grpc.CallOption) (*AtomicRenameEntryResponse, error) {
out := new(AtomicRenameEntryResponse)
err := grpc.Invoke(ctx, "/filer_pb.SeaweedFiler/AtomicRenameEntry", in, out, c.cc, opts...)
if err != nil {
return nil, err
}
return out, nil
}
func (c *seaweedFilerClient) AssignVolume(ctx context.Context, in *AssignVolumeRequest, opts ...grpc.CallOption) (*AssignVolumeResponse, error) {
out := new(AssignVolumeResponse)
err := grpc.Invoke(ctx, "/filer_pb.SeaweedFiler/AssignVolume", in, out, c.cc, opts...)
@@ -947,6 +1009,7 @@ type SeaweedFilerServer interface {
CreateEntry(context.Context, *CreateEntryRequest) (*CreateEntryResponse, error)
UpdateEntry(context.Context, *UpdateEntryRequest) (*UpdateEntryResponse, error)
DeleteEntry(context.Context, *DeleteEntryRequest) (*DeleteEntryResponse, error)
AtomicRenameEntry(context.Context, *AtomicRenameEntryRequest) (*AtomicRenameEntryResponse, error)
AssignVolume(context.Context, *AssignVolumeRequest) (*AssignVolumeResponse, error)
LookupVolume(context.Context, *LookupVolumeRequest) (*LookupVolumeResponse, error)
DeleteCollection(context.Context, *DeleteCollectionRequest) (*DeleteCollectionResponse, error)
@@ -1047,6 +1110,24 @@ func _SeaweedFiler_DeleteEntry_Handler(srv interface{}, ctx context.Context, dec
return interceptor(ctx, in, info, handler)
}
func _SeaweedFiler_AtomicRenameEntry_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
in := new(AtomicRenameEntryRequest)
if err := dec(in); err != nil {
return nil, err
}
if interceptor == nil {
return srv.(SeaweedFilerServer).AtomicRenameEntry(ctx, in)
}
info := &grpc.UnaryServerInfo{
Server: srv,
FullMethod: "/filer_pb.SeaweedFiler/AtomicRenameEntry",
}
handler := func(ctx context.Context, req interface{}) (interface{}, error) {
return srv.(SeaweedFilerServer).AtomicRenameEntry(ctx, req.(*AtomicRenameEntryRequest))
}
return interceptor(ctx, in, info, handler)
}
func _SeaweedFiler_AssignVolume_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
in := new(AssignVolumeRequest)
if err := dec(in); err != nil {
@@ -1143,6 +1224,10 @@ var _SeaweedFiler_serviceDesc = grpc.ServiceDesc{
MethodName: "DeleteEntry",
Handler: _SeaweedFiler_DeleteEntry_Handler,
},
{
MethodName: "AtomicRenameEntry",
Handler: _SeaweedFiler_AtomicRenameEntry_Handler,
},
{
MethodName: "AssignVolume",
Handler: _SeaweedFiler_AssignVolume_Handler,
@@ -1167,87 +1252,92 @@ var _SeaweedFiler_serviceDesc = grpc.ServiceDesc{
func init() { proto.RegisterFile("filer.proto", fileDescriptor0) }
var fileDescriptor0 = []byte{
// 1301 bytes of a gzipped FileDescriptorProto
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}

106
weed/server/filer_grpc_server_rename.go Normal file
View File

@@ -0,0 +1,106 @@
package weed_server
import (
"context"
"fmt"
"github.com/chrislusf/seaweedfs/weed/filer2"
"github.com/chrislusf/seaweedfs/weed/glog"
"github.com/chrislusf/seaweedfs/weed/pb/filer_pb"
"path/filepath"
)
func (fs *FilerServer) AtomicRenameEntry(ctx context.Context, req *filer_pb.AtomicRenameEntryRequest) (*filer_pb.AtomicRenameEntryResponse, error) {
ctx, err := fs.filer.BeginTransaction(ctx)
if err != nil {
return nil, err
}
oldParent := filer2.FullPath(filepath.ToSlash(req.OldDirectory))
oldEntry, err := fs.filer.FindEntry(ctx, oldParent.Child(req.OldName))
if err != nil {
fs.filer.RollbackTransaction(ctx)
return nil, fmt.Errorf("%s/%s not found: %v", req.OldDirectory, req.OldName, err)
}
moveErr := fs.moveEntry(ctx, oldParent, oldEntry, filer2.FullPath(filepath.ToSlash(req.NewDirectory)), req.NewName)
if moveErr != nil {
fs.filer.RollbackTransaction(ctx)
return nil, fmt.Errorf("%s/%s move error: %v", req.OldDirectory, req.OldName, err)
} else {
if commitError := fs.filer.CommitTransaction(ctx); commitError != nil {
fs.filer.RollbackTransaction(ctx)
return nil, fmt.Errorf("%s/%s move commit error: %v", req.OldDirectory, req.OldName, err)
}
}
return &filer_pb.AtomicRenameEntryResponse{}, nil
}
func (fs *FilerServer) moveEntry(ctx context.Context, oldParent filer2.FullPath, entry *filer2.Entry, newParent filer2.FullPath, newName string) (error) {
if entry.IsDirectory() {
if err := fs.moveFolderSubEntries(ctx, oldParent, entry, newParent, newName); err != nil {
return err
}
}
return fs.moveSelfEntry(ctx, oldParent, entry, newParent, newName)
}
func (fs *FilerServer) moveFolderSubEntries(ctx context.Context, oldParent filer2.FullPath, entry *filer2.Entry, newParent filer2.FullPath, newName string) (error) {
currentDirPath := oldParent.Child(entry.Name())
newDirPath := newParent.Child(newName)
glog.V(1).Infof("moving folder %s => %s", currentDirPath, newDirPath)
lastFileName := ""
includeLastFile := false
for {
entries, err := fs.filer.ListDirectoryEntries(ctx, currentDirPath, lastFileName, includeLastFile, 1024)
if err != nil {
return err
}
println("found", len(entries), "entries under", currentDirPath)
for _, item := range entries {
lastFileName = item.Name()
println("processing", lastFileName)
err := fs.moveEntry(ctx, currentDirPath, item, newDirPath, item.Name())
if err != nil {
return err
}
}
if len(entries) < 1024 {
break
}
}
return nil
}
func (fs *FilerServer) moveSelfEntry(ctx context.Context, oldParent filer2.FullPath, entry *filer2.Entry, newParent filer2.FullPath, newName string) (error) {
oldPath, newPath := oldParent.Child(entry.Name()), newParent.Child(newName)
glog.V(1).Infof("moving entry %s => %s", oldPath, newPath)
// add to new directory
createErr := fs.filer.CreateEntry(ctx, &filer2.Entry{
FullPath: newPath,
Attr: entry.Attr,
Chunks: entry.Chunks,
})
if createErr != nil {
return createErr
}
// delete old entry
deleteErr := fs.filer.DeleteEntryMetaAndData(ctx, oldPath, false, false)
if deleteErr != nil {
return deleteErr
}
return nil
}