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remote.mount saves the mapping

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This commit is contained in:
Chris Lu 2021-07-27 03:26:35 -07:00
parent 4b94b03d90
commit 1752eeb538
7 changed files with 254 additions and 258 deletions
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6
other/java/client/src/main/proto/filer.proto
View file

@ -392,10 +392,6 @@ message RemoteConf {
string s3_endpoint = 7; string s3_endpoint = 7;
} }
message RemoteStorageMappingList {
repeated RemoteStorageMapping mappings = 1;
}
message RemoteStorageMapping { message RemoteStorageMapping {
string dir = 1; map<string,string> mappings = 1;
string remote_storage_name = 2;
} }

34
weed/filer/filer_remote_storage.go
View file

@ -60,12 +60,12 @@ func (rs *FilerRemoteStorage) loadRemoteStorageConfigurations(filer *Filer) (err
} }
func (rs *FilerRemoteStorage) loadRemoteStorageMountMapping(data []byte) (err error) { func (rs *FilerRemoteStorage) loadRemoteStorageMountMapping(data []byte) (err error) {
mappings := &filer_pb.RemoteStorageMappingList{} mappings := &filer_pb.RemoteStorageMapping{}
if err := proto.Unmarshal(data, mappings); err != nil { if err := proto.Unmarshal(data, mappings); err != nil {
return fmt.Errorf("unmarshal %s/%s: %v", DirectoryEtcRemote, REMOTE_STORAGE_MOUNT_FILE, err) return fmt.Errorf("unmarshal %s/%s: %v", DirectoryEtcRemote, REMOTE_STORAGE_MOUNT_FILE, err)
} }
for _, mapping := range mappings.Mappings { for dir, storageLocation := range mappings.Mappings {
rs.mapDirectoryToRemoteStorage(util.FullPath(mapping.Dir), mapping.RemoteStorageName) rs.mapDirectoryToRemoteStorage(util.FullPath(dir), storageLocation)
} }
return nil return nil
} }
@ -75,16 +75,18 @@ func (rs *FilerRemoteStorage) mapDirectoryToRemoteStorage(dir util.FullPath, rem
} }
func (rs *FilerRemoteStorage) FindRemoteStorageClient(p util.FullPath) (client remote_storage.RemoteStorageClient, found bool) { func (rs *FilerRemoteStorage) FindRemoteStorageClient(p util.FullPath) (client remote_storage.RemoteStorageClient, found bool) {
var storageName string var storageLocation string
rs.rules.MatchPrefix([]byte(p), func(key []byte, value interface{}) bool { rs.rules.MatchPrefix([]byte(p), func(key []byte, value interface{}) bool {
storageName = value.(string) storageLocation = value.(string)
return true return true
}) })
if storageName == "" { if storageLocation == "" {
return return
} }
storageName, _, _ := remote_storage.RemoteStorageLocation(storageLocation).NameBucketPath()
remoteConf, ok := rs.storageNameToConf[storageName] remoteConf, ok := rs.storageNameToConf[storageName]
if !ok { if !ok {
return return
@ -97,3 +99,23 @@ func (rs *FilerRemoteStorage) FindRemoteStorageClient(p util.FullPath) (client r
} }
return return
} }
func AddMapping(oldContent []byte, dir string, storageLocation remote_storage.RemoteStorageLocation) (newContent []byte, err error) {
mappings := &filer_pb.RemoteStorageMapping{
Mappings: make(map[string]string),
}
if len(oldContent) > 0 {
if err = proto.Unmarshal(oldContent, mappings); err != nil {
return oldContent, fmt.Errorf("unmarshal existing mappings: %v", err)
}
}
// set the new mapping
mappings.Mappings[dir] = string(storageLocation)
if newContent, err = proto.Marshal(mappings); err != nil {
return oldContent, fmt.Errorf("unmarshal existing mappings: %v", err)
}
return
}

6
weed/pb/filer.proto
View file

@ -392,10 +392,6 @@ message RemoteConf {
string s3_endpoint = 7; string s3_endpoint = 7;
} }
message RemoteStorageMappingList {
repeated RemoteStorageMapping mappings = 1;
}
message RemoteStorageMapping { message RemoteStorageMapping {
string dir = 1; map<string,string> mappings = 1;
string remote_storage_name = 2;
} }

352
weed/pb/filer_pb/filer.pb.go
View file

@ -3255,66 +3255,18 @@ func (x *RemoteConf) GetS3Endpoint() string {
return "" return ""
} }
type RemoteStorageMappingList struct {
state protoimpl.MessageState
sizeCache protoimpl.SizeCache
unknownFields protoimpl.UnknownFields
Mappings []*RemoteStorageMapping `protobuf:"bytes,1,rep,name=mappings,proto3" json:"mappings,omitempty"`
}
func (x *RemoteStorageMappingList) Reset() {
*x = RemoteStorageMappingList{}
if protoimpl.UnsafeEnabled {
mi := &file_filer_proto_msgTypes[50]
ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
ms.StoreMessageInfo(mi)
}
}
func (x *RemoteStorageMappingList) String() string {
return protoimpl.X.MessageStringOf(x)
}
func (*RemoteStorageMappingList) ProtoMessage() {}
func (x *RemoteStorageMappingList) ProtoReflect() protoreflect.Message {
mi := &file_filer_proto_msgTypes[50]
if protoimpl.UnsafeEnabled && x != nil {
ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
if ms.LoadMessageInfo() == nil {
ms.StoreMessageInfo(mi)
}
return ms
}
return mi.MessageOf(x)
}
// Deprecated: Use RemoteStorageMappingList.ProtoReflect.Descriptor instead.
func (*RemoteStorageMappingList) Descriptor() ([]byte, []int) {
return file_filer_proto_rawDescGZIP(), []int{50}
}
func (x *RemoteStorageMappingList) GetMappings() []*RemoteStorageMapping {
if x != nil {
return x.Mappings
}
return nil
}
type RemoteStorageMapping struct { type RemoteStorageMapping struct {
state protoimpl.MessageState state protoimpl.MessageState
sizeCache protoimpl.SizeCache sizeCache protoimpl.SizeCache
unknownFields protoimpl.UnknownFields unknownFields protoimpl.UnknownFields
Dir string `protobuf:"bytes,1,opt,name=dir,proto3" json:"dir,omitempty"` Mappings map[string]string `protobuf:"bytes,1,rep,name=mappings,proto3" json:"mappings,omitempty" protobuf_key:"bytes,1,opt,name=key,proto3" protobuf_val:"bytes,2,opt,name=value,proto3"`
RemoteStorageName string `protobuf:"bytes,2,opt,name=remote_storage_name,json=remoteStorageName,proto3" json:"remote_storage_name,omitempty"`
} }
func (x *RemoteStorageMapping) Reset() { func (x *RemoteStorageMapping) Reset() {
*x = RemoteStorageMapping{} *x = RemoteStorageMapping{}
if protoimpl.UnsafeEnabled { if protoimpl.UnsafeEnabled {
mi := &file_filer_proto_msgTypes[51] mi := &file_filer_proto_msgTypes[50]
ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x)) ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
ms.StoreMessageInfo(mi) ms.StoreMessageInfo(mi)
} }
@ -3327,7 +3279,7 @@ func (x *RemoteStorageMapping) String() string {
func (*RemoteStorageMapping) ProtoMessage() {} func (*RemoteStorageMapping) ProtoMessage() {}
func (x *RemoteStorageMapping) ProtoReflect() protoreflect.Message { func (x *RemoteStorageMapping) ProtoReflect() protoreflect.Message {
mi := &file_filer_proto_msgTypes[51] mi := &file_filer_proto_msgTypes[50]
if protoimpl.UnsafeEnabled && x != nil { if protoimpl.UnsafeEnabled && x != nil {
ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x)) ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
if ms.LoadMessageInfo() == nil { if ms.LoadMessageInfo() == nil {
@ -3340,21 +3292,14 @@ func (x *RemoteStorageMapping) ProtoReflect() protoreflect.Message {
// Deprecated: Use RemoteStorageMapping.ProtoReflect.Descriptor instead. // Deprecated: Use RemoteStorageMapping.ProtoReflect.Descriptor instead.
func (*RemoteStorageMapping) Descriptor() ([]byte, []int) { func (*RemoteStorageMapping) Descriptor() ([]byte, []int) {
return file_filer_proto_rawDescGZIP(), []int{51} return file_filer_proto_rawDescGZIP(), []int{50}
} }
func (x *RemoteStorageMapping) GetDir() string { func (x *RemoteStorageMapping) GetMappings() map[string]string {
if x != nil { if x != nil {
return x.Dir return x.Mappings
} }
return "" return nil
}
func (x *RemoteStorageMapping) GetRemoteStorageName() string {
if x != nil {
return x.RemoteStorageName
}
return ""
} }
// if found, send the exact address // if found, send the exact address
@ -3371,7 +3316,7 @@ type LocateBrokerResponse_Resource struct {
func (x *LocateBrokerResponse_Resource) Reset() { func (x *LocateBrokerResponse_Resource) Reset() {
*x = LocateBrokerResponse_Resource{} *x = LocateBrokerResponse_Resource{}
if protoimpl.UnsafeEnabled { if protoimpl.UnsafeEnabled {
mi := &file_filer_proto_msgTypes[54] mi := &file_filer_proto_msgTypes[53]
ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x)) ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
ms.StoreMessageInfo(mi) ms.StoreMessageInfo(mi)
} }
@ -3384,7 +3329,7 @@ func (x *LocateBrokerResponse_Resource) String() string {
func (*LocateBrokerResponse_Resource) ProtoMessage() {} func (*LocateBrokerResponse_Resource) ProtoMessage() {}
func (x *LocateBrokerResponse_Resource) ProtoReflect() protoreflect.Message { func (x *LocateBrokerResponse_Resource) ProtoReflect() protoreflect.Message {
mi := &file_filer_proto_msgTypes[54] mi := &file_filer_proto_msgTypes[53]
if protoimpl.UnsafeEnabled && x != nil { if protoimpl.UnsafeEnabled && x != nil {
ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x)) ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
if ms.LoadMessageInfo() == nil { if ms.LoadMessageInfo() == nil {
@ -3432,7 +3377,7 @@ type FilerConf_PathConf struct {
func (x *FilerConf_PathConf) Reset() { func (x *FilerConf_PathConf) Reset() {
*x = FilerConf_PathConf{} *x = FilerConf_PathConf{}
if protoimpl.UnsafeEnabled { if protoimpl.UnsafeEnabled {
mi := &file_filer_proto_msgTypes[55] mi := &file_filer_proto_msgTypes[54]
ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x)) ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
ms.StoreMessageInfo(mi) ms.StoreMessageInfo(mi)
} }
@ -3445,7 +3390,7 @@ func (x *FilerConf_PathConf) String() string {
func (*FilerConf_PathConf) ProtoMessage() {} func (*FilerConf_PathConf) ProtoMessage() {}
func (x *FilerConf_PathConf) ProtoReflect() protoreflect.Message { func (x *FilerConf_PathConf) ProtoReflect() protoreflect.Message {
mi := &file_filer_proto_msgTypes[55] mi := &file_filer_proto_msgTypes[54]
if protoimpl.UnsafeEnabled && x != nil { if protoimpl.UnsafeEnabled && x != nil {
ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x)) ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
if ms.LoadMessageInfo() == nil { if ms.LoadMessageInfo() == nil {
@ -3943,126 +3888,125 @@ var file_filer_proto_rawDesc = []byte{
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0x74, 0x6f, 0x33,
} }
var ( var (
@ -4129,19 +4073,19 @@ var file_filer_proto_goTypes = []interface{}{
(*KvPutResponse)(nil), // 47: filer_pb.KvPutResponse (*KvPutResponse)(nil), // 47: filer_pb.KvPutResponse
(*FilerConf)(nil), // 48: filer_pb.FilerConf (*FilerConf)(nil), // 48: filer_pb.FilerConf
(*RemoteConf)(nil), // 49: filer_pb.RemoteConf (*RemoteConf)(nil), // 49: filer_pb.RemoteConf
(*RemoteStorageMappingList)(nil), // 50: filer_pb.RemoteStorageMappingList (*RemoteStorageMapping)(nil), // 50: filer_pb.RemoteStorageMapping
(*RemoteStorageMapping)(nil), // 51: filer_pb.RemoteStorageMapping nil, // 51: filer_pb.Entry.ExtendedEntry
nil, // 52: filer_pb.Entry.ExtendedEntry nil, // 52: filer_pb.LookupVolumeResponse.LocationsMapEntry
nil, // 53: filer_pb.LookupVolumeResponse.LocationsMapEntry (*LocateBrokerResponse_Resource)(nil), // 53: filer_pb.LocateBrokerResponse.Resource
(*LocateBrokerResponse_Resource)(nil), // 54: filer_pb.LocateBrokerResponse.Resource (*FilerConf_PathConf)(nil), // 54: filer_pb.FilerConf.PathConf
(*FilerConf_PathConf)(nil), // 55: filer_pb.FilerConf.PathConf nil, // 55: filer_pb.RemoteStorageMapping.MappingsEntry
} }
var file_filer_proto_depIdxs = []int32{ var file_filer_proto_depIdxs = []int32{
5, // 0: filer_pb.LookupDirectoryEntryResponse.entry:type_name -> filer_pb.Entry 5, // 0: filer_pb.LookupDirectoryEntryResponse.entry:type_name -> filer_pb.Entry
5, // 1: filer_pb.ListEntriesResponse.entry:type_name -> filer_pb.Entry 5, // 1: filer_pb.ListEntriesResponse.entry:type_name -> filer_pb.Entry
8, // 2: filer_pb.Entry.chunks:type_name -> filer_pb.FileChunk 8, // 2: filer_pb.Entry.chunks:type_name -> filer_pb.FileChunk
11, // 3: filer_pb.Entry.attributes:type_name -> filer_pb.FuseAttributes 11, // 3: filer_pb.Entry.attributes:type_name -> filer_pb.FuseAttributes
52, // 4: filer_pb.Entry.extended:type_name -> filer_pb.Entry.ExtendedEntry 51, // 4: filer_pb.Entry.extended:type_name -> filer_pb.Entry.ExtendedEntry
4, // 5: filer_pb.Entry.remote_entry:type_name -> filer_pb.RemoteEntry 4, // 5: filer_pb.Entry.remote_entry:type_name -> filer_pb.RemoteEntry
5, // 6: filer_pb.FullEntry.entry:type_name -> filer_pb.Entry 5, // 6: filer_pb.FullEntry.entry:type_name -> filer_pb.Entry
5, // 7: filer_pb.EventNotification.old_entry:type_name -> filer_pb.Entry 5, // 7: filer_pb.EventNotification.old_entry:type_name -> filer_pb.Entry
@ -4153,12 +4097,12 @@ var file_filer_proto_depIdxs = []int32{
5, // 13: filer_pb.UpdateEntryRequest.entry:type_name -> filer_pb.Entry 5, // 13: filer_pb.UpdateEntryRequest.entry:type_name -> filer_pb.Entry
8, // 14: filer_pb.AppendToEntryRequest.chunks:type_name -> filer_pb.FileChunk 8, // 14: filer_pb.AppendToEntryRequest.chunks:type_name -> filer_pb.FileChunk
26, // 15: filer_pb.Locations.locations:type_name -> filer_pb.Location 26, // 15: filer_pb.Locations.locations:type_name -> filer_pb.Location
53, // 16: filer_pb.LookupVolumeResponse.locations_map:type_name -> filer_pb.LookupVolumeResponse.LocationsMapEntry 52, // 16: filer_pb.LookupVolumeResponse.locations_map:type_name -> filer_pb.LookupVolumeResponse.LocationsMapEntry
28, // 17: filer_pb.CollectionListResponse.collections:type_name -> filer_pb.Collection 28, // 17: filer_pb.CollectionListResponse.collections:type_name -> filer_pb.Collection
7, // 18: filer_pb.SubscribeMetadataResponse.event_notification:type_name -> filer_pb.EventNotification 7, // 18: filer_pb.SubscribeMetadataResponse.event_notification:type_name -> filer_pb.EventNotification
54, // 19: filer_pb.LocateBrokerResponse.resources:type_name -> filer_pb.LocateBrokerResponse.Resource 53, // 19: filer_pb.LocateBrokerResponse.resources:type_name -> filer_pb.LocateBrokerResponse.Resource
55, // 20: filer_pb.FilerConf.locations:type_name -> filer_pb.FilerConf.PathConf 54, // 20: filer_pb.FilerConf.locations:type_name -> filer_pb.FilerConf.PathConf
51, // 21: filer_pb.RemoteStorageMappingList.mappings:type_name -> filer_pb.RemoteStorageMapping 55, // 21: filer_pb.RemoteStorageMapping.mappings:type_name -> filer_pb.RemoteStorageMapping.MappingsEntry
25, // 22: filer_pb.LookupVolumeResponse.LocationsMapEntry.value:type_name -> filer_pb.Locations 25, // 22: filer_pb.LookupVolumeResponse.LocationsMapEntry.value:type_name -> filer_pb.Locations
0, // 23: filer_pb.SeaweedFiler.LookupDirectoryEntry:input_type -> filer_pb.LookupDirectoryEntryRequest 0, // 23: filer_pb.SeaweedFiler.LookupDirectoryEntry:input_type -> filer_pb.LookupDirectoryEntryRequest
2, // 24: filer_pb.SeaweedFiler.ListEntries:input_type -> filer_pb.ListEntriesRequest 2, // 24: filer_pb.SeaweedFiler.ListEntries:input_type -> filer_pb.ListEntriesRequest
@ -4812,18 +4756,6 @@ func file_filer_proto_init() {
} }
} }
file_filer_proto_msgTypes[50].Exporter = func(v interface{}, i int) interface{} { file_filer_proto_msgTypes[50].Exporter = func(v interface{}, i int) interface{} {
switch v := v.(*RemoteStorageMappingList); i {
case 0:
return &v.state
case 1:
return &v.sizeCache
case 2:
return &v.unknownFields
default:
return nil
}
}
file_filer_proto_msgTypes[51].Exporter = func(v interface{}, i int) interface{} {
switch v := v.(*RemoteStorageMapping); i { switch v := v.(*RemoteStorageMapping); i {
case 0: case 0:
return &v.state return &v.state
@ -4835,7 +4767,7 @@ func file_filer_proto_init() {
return nil return nil
} }
} }
file_filer_proto_msgTypes[54].Exporter = func(v interface{}, i int) interface{} { file_filer_proto_msgTypes[53].Exporter = func(v interface{}, i int) interface{} {
switch v := v.(*LocateBrokerResponse_Resource); i { switch v := v.(*LocateBrokerResponse_Resource); i {
case 0: case 0:
return &v.state return &v.state
@ -4847,7 +4779,7 @@ func file_filer_proto_init() {
return nil return nil
} }
} }
file_filer_proto_msgTypes[55].Exporter = func(v interface{}, i int) interface{} { file_filer_proto_msgTypes[54].Exporter = func(v interface{}, i int) interface{} {
switch v := v.(*FilerConf_PathConf); i { switch v := v.(*FilerConf_PathConf); i {
case 0: case 0:
return &v.state return &v.state

23
weed/remote_storage/remote_storage.go
View file

@ -3,13 +3,34 @@ package remote_storage
import ( import (
"fmt" "fmt"
"github.com/chrislusf/seaweedfs/weed/pb/filer_pb" "github.com/chrislusf/seaweedfs/weed/pb/filer_pb"
"strings"
"sync" "sync"
) )
type RemoteStorageLocation string
func (remote RemoteStorageLocation) NameBucketPath() (storageName, bucket, remotePath string) {
if strings.HasSuffix(string(remote), "/") {
remote = remote[:len(remote)-1]
}
parts := strings.SplitN(string(remote), "/", 3)
if len(parts)>=1 {
storageName = parts[0]
}
if len(parts)>=2 {
bucket = parts[1]
}
remotePath = string(remote[len(storageName)+1+len(bucket):])
if remotePath == "" {
remotePath = "/"
}
return
}
type VisitFunc func(dir string, name string, isDirectory bool, remoteEntry *filer_pb.RemoteEntry) error type VisitFunc func(dir string, name string, isDirectory bool, remoteEntry *filer_pb.RemoteEntry) error
type RemoteStorageClient interface { type RemoteStorageClient interface {
Traverse(rootDir string, visitFn VisitFunc) error Traverse(remote RemoteStorageLocation, visitFn VisitFunc) error
} }
type RemoteStorageClientMaker interface { type RemoteStorageClientMaker interface {

26
weed/remote_storage/s3/s3_storage_client.go
View file

@ -10,7 +10,6 @@ import (
"github.com/chrislusf/seaweedfs/weed/pb/filer_pb" "github.com/chrislusf/seaweedfs/weed/pb/filer_pb"
"github.com/chrislusf/seaweedfs/weed/remote_storage" "github.com/chrislusf/seaweedfs/weed/remote_storage"
"github.com/chrislusf/seaweedfs/weed/util" "github.com/chrislusf/seaweedfs/weed/util"
"strings"
) )
func init() { func init() {
@ -45,15 +44,9 @@ type s3RemoteStorageClient struct {
conn s3iface.S3API conn s3iface.S3API
} }
func (s s3RemoteStorageClient) Traverse(rootDir string, visitFn remote_storage.VisitFunc) (err error) { func (s s3RemoteStorageClient) Traverse(remote remote_storage.RemoteStorageLocation, visitFn remote_storage.VisitFunc) (err error) {
if !strings.HasPrefix(rootDir, "/") {
return fmt.Errorf("remote directory %s should start with /", rootDir) _, bucket, pathKey := remote.NameBucketPath()
}
bucket := strings.Split(rootDir[1:], "/")[0]
prefix := rootDir[1+len(bucket):]
if len(prefix) > 0 && strings.HasPrefix(prefix, "/") {
prefix = prefix[1:]
}
listInput := &s3.ListObjectsV2Input{ listInput := &s3.ListObjectsV2Input{
Bucket: aws.String(bucket), Bucket: aws.String(bucket),
@ -63,7 +56,7 @@ func (s s3RemoteStorageClient) Traverse(rootDir string, visitFn remote_storage.V
ExpectedBucketOwner: nil, ExpectedBucketOwner: nil,
FetchOwner: nil, FetchOwner: nil,
MaxKeys: nil, // aws.Int64(1000), MaxKeys: nil, // aws.Int64(1000),
Prefix: aws.String(prefix), Prefix: aws.String(pathKey[1:]),
RequestPayer: nil, RequestPayer: nil,
StartAfter: nil, StartAfter: nil,
} }
@ -71,8 +64,13 @@ func (s s3RemoteStorageClient) Traverse(rootDir string, visitFn remote_storage.V
for !isLastPage && err == nil { for !isLastPage && err == nil {
listErr := s.conn.ListObjectsV2Pages(listInput, func(page *s3.ListObjectsV2Output, lastPage bool) bool { listErr := s.conn.ListObjectsV2Pages(listInput, func(page *s3.ListObjectsV2Output, lastPage bool) bool {
for _, content := range page.Contents { for _, content := range page.Contents {
key := *content.Key key := (*content.Key)
dir, name := util.FullPath("/" + key).DirAndName() if len(pathKey) == 1 {
key = "/" + key
} else {
key = key[len(pathKey)-1:]
}
dir, name := util.FullPath(key).DirAndName()
if err := visitFn(dir, name, false, &filer_pb.RemoteEntry{ if err := visitFn(dir, name, false, &filer_pb.RemoteEntry{
LastModifiedAt: (*content.LastModified).Unix(), LastModifiedAt: (*content.LastModified).Unix(),
Size: *content.Size, Size: *content.Size,
@ -87,7 +85,7 @@ func (s s3RemoteStorageClient) Traverse(rootDir string, visitFn remote_storage.V
return true return true
}) })
if listErr != nil { if listErr != nil {
err = fmt.Errorf("list %v: %v", rootDir, listErr) err = fmt.Errorf("list %v: %v", remote, listErr)
} }
} }
return return

65
weed/shell/command_remote_mount.go
View file

@ -10,7 +10,6 @@ import (
"github.com/chrislusf/seaweedfs/weed/util" "github.com/chrislusf/seaweedfs/weed/util"
"github.com/golang/protobuf/proto" "github.com/golang/protobuf/proto"
"io" "io"
"strings"
) )
func init() { func init() {
@ -50,33 +49,32 @@ func (c *commandRemoteMount) Do(args []string, commandEnv *CommandEnv, writer io
return nil return nil
} }
remoteStorageLocation := remote_storage.RemoteStorageLocation(*remote)
// find configuration for remote storage // find configuration for remote storage
remoteConf, remotePath, err := c.findRemoteStorageConfiguration(commandEnv, writer, *remote) // remotePath is /<bucket>/path/to/dir
remoteConf, err := c.findRemoteStorageConfiguration(commandEnv, writer, remoteStorageLocation)
if err != nil { if err != nil {
return fmt.Errorf("find configuration for %s: %v", *remote, err) return fmt.Errorf("find configuration for %s: %v", *remote, err)
} }
// pull metadata from remote // pull metadata from remote
if err = c.pullMetadata(commandEnv, writer, *dir, *nonEmpty, remoteConf, remotePath); err != nil { if err = c.pullMetadata(commandEnv, writer, *dir, *nonEmpty, remoteConf, remoteStorageLocation); err != nil {
return fmt.Errorf("pull metadata: %v", err) return fmt.Errorf("pull metadata: %v", err)
} }
// store a mount configuration in filer // store a mount configuration in filer
if err = c.saveMountMapping(commandEnv, writer, *dir, remoteStorageLocation); err != nil {
return fmt.Errorf("save mount mapping: %v", err)
}
return nil return nil
} }
func (c *commandRemoteMount) findRemoteStorageConfiguration(commandEnv *CommandEnv, writer io.Writer, remote string) (conf *filer_pb.RemoteConf, remotePath string, err error) { func (c *commandRemoteMount) findRemoteStorageConfiguration(commandEnv *CommandEnv, writer io.Writer, remote remote_storage.RemoteStorageLocation) (conf *filer_pb.RemoteConf, err error) {
// find remote configuration // find remote configuration
parts := strings.Split(remote, "/") storageName, _, _ := remote.NameBucketPath()
if len(parts) == 0 {
err = fmt.Errorf("wrong remote storage location %s", remote)
return
}
storageName := parts[0]
remotePath = remote[len(storageName):]
// read storage configuration data // read storage configuration data
var confBytes []byte var confBytes []byte
@ -99,7 +97,7 @@ func (c *commandRemoteMount) findRemoteStorageConfiguration(commandEnv *CommandE
return return
} }
func (c *commandRemoteMount) pullMetadata(commandEnv *CommandEnv, writer io.Writer, dir string, nonEmpty bool, remoteConf *filer_pb.RemoteConf, remotePath string) error { func (c *commandRemoteMount) pullMetadata(commandEnv *CommandEnv, writer io.Writer, dir string, nonEmpty bool, remoteConf *filer_pb.RemoteConf, remote remote_storage.RemoteStorageLocation) error {
// find existing directory, and ensure the directory is empty // find existing directory, and ensure the directory is empty
var mountToDir *filer_pb.Entry var mountToDir *filer_pb.Entry
@ -114,7 +112,7 @@ func (c *commandRemoteMount) pullMetadata(commandEnv *CommandEnv, writer io.Writ
} }
mountToDir = resp.Entry mountToDir = resp.Entry
mountToDirIsEmpty := false mountToDirIsEmpty := true
listErr := filer_pb.SeaweedList(client, dir, "", func(entry *filer_pb.Entry, isLast bool) error { listErr := filer_pb.SeaweedList(client, dir, "", func(entry *filer_pb.Entry, isLast bool) error {
mountToDirIsEmpty = false mountToDirIsEmpty = false
return nil return nil
@ -144,7 +142,7 @@ func (c *commandRemoteMount) pullMetadata(commandEnv *CommandEnv, writer io.Writ
err = commandEnv.WithFilerClient(func(client filer_pb.SeaweedFilerClient) error { err = commandEnv.WithFilerClient(func(client filer_pb.SeaweedFilerClient) error {
ctx := context.Background() ctx := context.Background()
err = remoteStorage.Traverse(remotePath, func(remoteDir, name string, isDirectory bool, remoteEntry *filer_pb.RemoteEntry) error { err = remoteStorage.Traverse(remote, func(remoteDir, name string, isDirectory bool, remoteEntry *filer_pb.RemoteEntry) error {
localDir := dir + remoteDir localDir := dir + remoteDir
println(util.NewFullPath(localDir, name)) println(util.NewFullPath(localDir, name))
@ -152,12 +150,14 @@ func (c *commandRemoteMount) pullMetadata(commandEnv *CommandEnv, writer io.Writ
Directory: localDir, Directory: localDir,
Name: name, Name: name,
}) })
var existingEntry *filer_pb.Entry
if lookupErr != nil { if lookupErr != nil {
if lookupErr != filer_pb.ErrNotFound { if lookupErr != filer_pb.ErrNotFound {
return lookupErr return lookupErr
} }
} else {
existingEntry = lookupResponse.Entry
} }
existingEntry := lookupResponse.Entry
if existingEntry == nil { if existingEntry == nil {
_, createErr := client.CreateEntry(ctx, &filer_pb.CreateEntryRequest{ _, createErr := client.CreateEntry(ctx, &filer_pb.CreateEntryRequest{
@ -175,7 +175,7 @@ func (c *commandRemoteMount) pullMetadata(commandEnv *CommandEnv, writer io.Writ
}) })
return createErr return createErr
} else { } else {
if existingEntry.RemoteEntry.ETag != remoteEntry.ETag { if existingEntry.RemoteEntry == nil || existingEntry.RemoteEntry.ETag != remoteEntry.ETag {
existingEntry.RemoteEntry = remoteEntry existingEntry.RemoteEntry = remoteEntry
existingEntry.Attributes.FileSize = uint64(remoteEntry.Size) existingEntry.Attributes.FileSize = uint64(remoteEntry.Size)
existingEntry.Attributes.Mtime = remoteEntry.LastModifiedAt existingEntry.Attributes.Mtime = remoteEntry.LastModifiedAt
@ -197,3 +197,34 @@ func (c *commandRemoteMount) pullMetadata(commandEnv *CommandEnv, writer io.Writ
return nil return nil
} }
func (c *commandRemoteMount) saveMountMapping(commandEnv *CommandEnv, writer io.Writer, dir string, remoteStorageLocation remote_storage.RemoteStorageLocation) (err error) {
// read current mapping
var oldContent, newContent []byte
err = commandEnv.WithFilerClient(func(client filer_pb.SeaweedFilerClient) error {
oldContent, err = filer.ReadInsideFiler(client, filer.DirectoryEtcRemote, filer.REMOTE_STORAGE_MOUNT_FILE)
return err
})
if err != nil {
if err != filer_pb.ErrNotFound {
return fmt.Errorf("read existing mapping: %v", err)
}
}
// add new mapping
newContent, err = filer.AddMapping(oldContent, dir, remoteStorageLocation)
if err != nil {
return fmt.Errorf("add mapping %s~%s: %v", dir, remoteStorageLocation, err)
}
// save back
err = commandEnv.WithFilerClient(func(client filer_pb.SeaweedFilerClient) error {
return filer.SaveInsideFiler(client, filer.DirectoryEtcRemote, filer.REMOTE_STORAGE_MOUNT_FILE, newContent)
})
if err != nil {
return fmt.Errorf("save mapping: %v", err)
}
return nil
}