remote storage location changed to struct

9 files changed, 320 insertions, 216 deletions

diff --git a/other/java/client/src/main/proto/filer.proto b/other/java/client/src/main/proto/filer.proto
index efecc4e97..1a5cfe79b 100644
--- a/other/java/client/src/main/proto/filer.proto
+++ b/other/java/client/src/main/proto/filer.proto
@@ -393,5 +393,10 @@ message RemoteConf {
 }
 
 message RemoteStorageMapping {
-    map<string,string> mappings = 1;
+    map<string,RemoteStorageLocation> mappings = 1;
+}
+message RemoteStorageLocation {
+    string name = 1;
+    string bucket = 2;
+    string path = 3;
 }
diff --git a/weed/filer/filer_remote_storage.go b/weed/filer/filer_remote_storage.go
index 18b2676bc..df0b6d26b 100644
--- a/weed/filer/filer_remote_storage.go
+++ b/weed/filer/filer_remote_storage.go
@@ -70,11 +70,11 @@ func (rs *FilerRemoteStorage) loadRemoteStorageMountMapping(data []byte) (err er
 	return nil
 }
 
-func (rs *FilerRemoteStorage) mapDirectoryToRemoteStorage(dir util.FullPath, remoteStorageName string) {
-	rs.rules.Put([]byte(dir+"/"), remoteStorageName)
+func (rs *FilerRemoteStorage) mapDirectoryToRemoteStorage(dir util.FullPath, loc *filer_pb.RemoteStorageLocation) {
+	rs.rules.Put([]byte(dir+"/"), loc)
 }
 
-func (rs *FilerRemoteStorage) FindMountDirectory(p util.FullPath) (mountDir util.FullPath, remoteLocation remote_storage.RemoteStorageLocation) {
+func (rs *FilerRemoteStorage) FindMountDirectory(p util.FullPath) (mountDir util.FullPath, remoteLocation *filer_pb.RemoteStorageLocation) {
 	var storageLocation string
 	rs.rules.MatchPrefix([]byte(p), func(key []byte, value interface{}) bool {
 		mountDir = util.FullPath(string(key))
@@ -84,7 +84,7 @@ func (rs *FilerRemoteStorage) FindMountDirectory(p util.FullPath) (mountDir util
 	if storageLocation == "" {
 		return
 	}
-	remoteLocation = remote_storage.RemoteStorageLocation(storageLocation)
+	remoteLocation = remote_storage.ParseLocation(storageLocation)
 	return
 }
 
@@ -99,9 +99,9 @@ func (rs *FilerRemoteStorage) FindRemoteStorageClient(p util.FullPath) (client r
 		return
 	}
 
-	storageName, _, _ := remote_storage.RemoteStorageLocation(storageLocation).NameBucketPath()
+	loc := remote_storage.ParseLocation(storageLocation)
 
-	return rs.GetRemoteStorageClient(storageName)
+	return rs.GetRemoteStorageClient(loc.Name)
 }
 
 func (rs *FilerRemoteStorage) GetRemoteStorageClient(storageName string) (client remote_storage.RemoteStorageClient, remoteConf *filer_pb.RemoteConf, found bool) {
@@ -118,21 +118,21 @@ func (rs *FilerRemoteStorage) GetRemoteStorageClient(storageName string) (client
 	return
 }
 
-func AddMapping(oldContent []byte, dir string, storageLocation remote_storage.RemoteStorageLocation) (newContent []byte, err error) {
+func AddMapping(oldContent []byte, dir string, storageLocation *filer_pb.RemoteStorageLocation) (newContent []byte, err error) {
 	mappings := &filer_pb.RemoteStorageMapping{
-		Mappings: make(map[string]string),
+		Mappings: make(map[string]*filer_pb.RemoteStorageLocation),
 	}
 	if len(oldContent) > 0 {
 		if err = proto.Unmarshal(oldContent, mappings); err != nil {
-			return oldContent, fmt.Errorf("unmarshal existing mappings: %v", err)
+			glog.Warningf("unmarshal existing mappings: %v", err)
 		}
 	}
 
 	// set the new mapping
-	mappings.Mappings[dir] = string(storageLocation)
+	mappings.Mappings[dir] = storageLocation
 
 	if newContent, err = proto.Marshal(mappings); err != nil {
-		return oldContent, fmt.Errorf("unmarshal existing mappings: %v", err)
+		return oldContent, fmt.Errorf("marshal mappings: %v", err)
 	}
 
 	return
diff --git a/weed/filer/filer_search.go b/weed/filer/filer_search.go
index 2ee29be25..2e0336da8 100644
--- a/weed/filer/filer_search.go
+++ b/weed/filer/filer_search.go
@@ -3,6 +3,7 @@ package filer
 import (
 	"context"
 	"github.com/chrislusf/seaweedfs/weed/util"
+	"math"
 	"path/filepath"
 	"strings"
 )
@@ -27,6 +28,10 @@ func (f *Filer) ListDirectoryEntries(ctx context.Context, p util.FullPath, start
 		return true
 	})
 
+	if limit == math.MaxInt64 {
+		limit = math.MaxInt64 - 1
+	}
+
 	hasMore = int64(len(entries)) >= limit+1
 	if hasMore {
 		entries = entries[:limit]
diff --git a/weed/filer/read_remote.go b/weed/filer/read_remote.go
index 57450d6d8..4f02ba26b 100644
--- a/weed/filer/read_remote.go
+++ b/weed/filer/read_remote.go
@@ -2,6 +2,7 @@ package filer
 
 import (
 	"fmt"
+	"github.com/chrislusf/seaweedfs/weed/pb/filer_pb"
 	"io"
 )
 
@@ -10,18 +11,23 @@ func (entry *Entry) IsRemoteOnly() bool {
 }
 
 func (f *Filer) ReadRemote(w io.Writer, entry *Entry, offset int64, size int64) error {
-	client, _, found := f.RemoteStorage.GetRemoteStorageClient(remoteEntry.Remote.StorageName)
+	client, _, found := f.RemoteStorage.GetRemoteStorageClient(entry.Remote.StorageName)
 	if !found {
 		return fmt.Errorf("remote storage %v not found", entry.Remote.StorageName)
 	}
 
 	mountDir, remoteLoation := f.RemoteStorage.FindMountDirectory(entry.FullPath)
-	_, bucket, path := remoteLoation.NameBucketPath()
 
-	remoteFullPath := path + string(entry.FullPath[len(mountDir):])
+	remoteFullPath := remoteLoation.Path + string(entry.FullPath[len(mountDir):])
 
-	client.ReadFile(bucket, remoteFullPath[1:], offset, size, func(w io.Writer) error {
+	sourceLoc := &filer_pb.RemoteStorageLocation{
+		Name:   remoteLoation.Name,
+		Bucket: remoteLoation.Bucket,
+		Path:   remoteFullPath,
+	}
 
+	client.ReadFile(sourceLoc, offset, size, func(w io.Writer) error {
+		return nil
 	})
 	return nil
 }
diff --git a/weed/pb/filer.proto b/weed/pb/filer.proto
index efecc4e97..1a5cfe79b 100644
--- a/weed/pb/filer.proto
+++ b/weed/pb/filer.proto
@@ -393,5 +393,10 @@ message RemoteConf {
 }
 
 message RemoteStorageMapping {
-    map<string,string> mappings = 1;
+    map<string,RemoteStorageLocation> mappings = 1;
+}
+message RemoteStorageLocation {
+    string name = 1;
+    string bucket = 2;
+    string path = 3;
 }
diff --git a/weed/pb/filer_pb/filer.pb.go b/weed/pb/filer_pb/filer.pb.go
index 7739f65e8..495afb21a 100644
--- a/weed/pb/filer_pb/filer.pb.go
+++ b/weed/pb/filer_pb/filer.pb.go
@@ -3260,7 +3260,7 @@ type RemoteStorageMapping struct {
 	sizeCache     protoimpl.SizeCache
 	unknownFields protoimpl.UnknownFields
 
-	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"`
+	Mappings map[string]*RemoteStorageLocation `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"`
 }
 
 func (x *RemoteStorageMapping) Reset() {
@@ -3295,13 +3295,76 @@ func (*RemoteStorageMapping) Descriptor() ([]byte, []int) {
 	return file_filer_proto_rawDescGZIP(), []int{50}
 }
 
-func (x *RemoteStorageMapping) GetMappings() map[string]string {
+func (x *RemoteStorageMapping) GetMappings() map[string]*RemoteStorageLocation {
 	if x != nil {
 		return x.Mappings
 	}
 	return nil
 }
 
+type RemoteStorageLocation struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+
+	Name   string `protobuf:"bytes,1,opt,name=name,proto3" json:"name,omitempty"`
+	Bucket string `protobuf:"bytes,2,opt,name=bucket,proto3" json:"bucket,omitempty"`
+	Path   string `protobuf:"bytes,3,opt,name=path,proto3" json:"path,omitempty"`
+}
+
+func (x *RemoteStorageLocation) Reset() {
+	*x = RemoteStorageLocation{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_filer_proto_msgTypes[51]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
+}
+
+func (x *RemoteStorageLocation) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*RemoteStorageLocation) ProtoMessage() {}
+
+func (x *RemoteStorageLocation) ProtoReflect() protoreflect.Message {
+	mi := &file_filer_proto_msgTypes[51]
+	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 RemoteStorageLocation.ProtoReflect.Descriptor instead.
+func (*RemoteStorageLocation) Descriptor() ([]byte, []int) {
+	return file_filer_proto_rawDescGZIP(), []int{51}
+}
+
+func (x *RemoteStorageLocation) GetName() string {
+	if x != nil {
+		return x.Name
+	}
+	return ""
+}
+
+func (x *RemoteStorageLocation) GetBucket() string {
+	if x != nil {
+		return x.Bucket
+	}
+	return ""
+}
+
+func (x *RemoteStorageLocation) GetPath() string {
+	if x != nil {
+		return x.Path
+	}
+	return ""
+}
+
 // if found, send the exact address
 // if not found, send the full list of existing brokers
 type LocateBrokerResponse_Resource struct {
@@ -3316,7 +3379,7 @@ type LocateBrokerResponse_Resource struct {
 func (x *LocateBrokerResponse_Resource) Reset() {
 	*x = LocateBrokerResponse_Resource{}
 	if protoimpl.UnsafeEnabled {
-		mi := &file_filer_proto_msgTypes[53]
+		mi := &file_filer_proto_msgTypes[54]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		ms.StoreMessageInfo(mi)
 	}
@@ -3329,7 +3392,7 @@ func (x *LocateBrokerResponse_Resource) String() string {
 func (*LocateBrokerResponse_Resource) ProtoMessage() {}
 
 func (x *LocateBrokerResponse_Resource) ProtoReflect() protoreflect.Message {
-	mi := &file_filer_proto_msgTypes[53]
+	mi := &file_filer_proto_msgTypes[54]
 	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -3377,7 +3440,7 @@ type FilerConf_PathConf struct {
 func (x *FilerConf_PathConf) Reset() {
 	*x = FilerConf_PathConf{}
 	if protoimpl.UnsafeEnabled {
-		mi := &file_filer_proto_msgTypes[54]
+		mi := &file_filer_proto_msgTypes[55]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		ms.StoreMessageInfo(mi)
 	}
@@ -3390,7 +3453,7 @@ func (x *FilerConf_PathConf) String() string {
 func (*FilerConf_PathConf) ProtoMessage() {}
 
 func (x *FilerConf_PathConf) ProtoReflect() protoreflect.Message {
-	mi := &file_filer_proto_msgTypes[54]
+	mi := &file_filer_proto_msgTypes[55]
 	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -3888,125 +3951,132 @@ var file_filer_proto_rawDesc = []byte{
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 }
 
 var (
@@ -4021,7 +4091,7 @@ func file_filer_proto_rawDescGZIP() []byte {
 	return file_filer_proto_rawDescData
 }
 
-var file_filer_proto_msgTypes = make([]protoimpl.MessageInfo, 56)
+var file_filer_proto_msgTypes = make([]protoimpl.MessageInfo, 57)
 var file_filer_proto_goTypes = []interface{}{
 	(*LookupDirectoryEntryRequest)(nil),   // 0: filer_pb.LookupDirectoryEntryRequest
 	(*LookupDirectoryEntryResponse)(nil),  // 1: filer_pb.LookupDirectoryEntryResponse
@@ -4074,18 +4144,19 @@ var file_filer_proto_goTypes = []interface{}{
 	(*FilerConf)(nil),                     // 48: filer_pb.FilerConf
 	(*RemoteConf)(nil),                    // 49: filer_pb.RemoteConf
 	(*RemoteStorageMapping)(nil),          // 50: filer_pb.RemoteStorageMapping
-	nil,                                   // 51: filer_pb.Entry.ExtendedEntry
-	nil,                                   // 52: filer_pb.LookupVolumeResponse.LocationsMapEntry
-	(*LocateBrokerResponse_Resource)(nil), // 53: filer_pb.LocateBrokerResponse.Resource
-	(*FilerConf_PathConf)(nil),            // 54: filer_pb.FilerConf.PathConf
-	nil,                                   // 55: filer_pb.RemoteStorageMapping.MappingsEntry
+	(*RemoteStorageLocation)(nil),         // 51: filer_pb.RemoteStorageLocation
+	nil,                                   // 52: filer_pb.Entry.ExtendedEntry
+	nil,                                   // 53: filer_pb.LookupVolumeResponse.LocationsMapEntry
+	(*LocateBrokerResponse_Resource)(nil), // 54: filer_pb.LocateBrokerResponse.Resource
+	(*FilerConf_PathConf)(nil),            // 55: filer_pb.FilerConf.PathConf
+	nil,                                   // 56: filer_pb.RemoteStorageMapping.MappingsEntry
 }
 var file_filer_proto_depIdxs = []int32{
 	5,  // 0: filer_pb.LookupDirectoryEntryResponse.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
 	11, // 3: filer_pb.Entry.attributes:type_name -> filer_pb.FuseAttributes
-	51, // 4: filer_pb.Entry.extended:type_name -> filer_pb.Entry.ExtendedEntry
+	52, // 4: filer_pb.Entry.extended:type_name -> filer_pb.Entry.ExtendedEntry
 	4,  // 5: filer_pb.Entry.remote_entry:type_name -> filer_pb.RemoteEntry
 	5,  // 6: filer_pb.FullEntry.entry:type_name -> filer_pb.Entry
 	5,  // 7: filer_pb.EventNotification.old_entry:type_name -> filer_pb.Entry
@@ -4097,56 +4168,57 @@ var file_filer_proto_depIdxs = []int32{
 	5,  // 13: filer_pb.UpdateEntryRequest.entry:type_name -> filer_pb.Entry
 	8,  // 14: filer_pb.AppendToEntryRequest.chunks:type_name -> filer_pb.FileChunk
 	26, // 15: filer_pb.Locations.locations:type_name -> filer_pb.Location
-	52, // 16: filer_pb.LookupVolumeResponse.locations_map:type_name -> filer_pb.LookupVolumeResponse.LocationsMapEntry
+	53, // 16: filer_pb.LookupVolumeResponse.locations_map:type_name -> filer_pb.LookupVolumeResponse.LocationsMapEntry
 	28, // 17: filer_pb.CollectionListResponse.collections:type_name -> filer_pb.Collection
 	7,  // 18: filer_pb.SubscribeMetadataResponse.event_notification:type_name -> filer_pb.EventNotification
-	53, // 19: filer_pb.LocateBrokerResponse.resources:type_name -> filer_pb.LocateBrokerResponse.Resource
-	54, // 20: filer_pb.FilerConf.locations:type_name -> filer_pb.FilerConf.PathConf
-	55, // 21: filer_pb.RemoteStorageMapping.mappings:type_name -> filer_pb.RemoteStorageMapping.MappingsEntry
+	54, // 19: filer_pb.LocateBrokerResponse.resources:type_name -> filer_pb.LocateBrokerResponse.Resource
+	55, // 20: filer_pb.FilerConf.locations:type_name -> filer_pb.FilerConf.PathConf
+	56, // 21: filer_pb.RemoteStorageMapping.mappings:type_name -> filer_pb.RemoteStorageMapping.MappingsEntry
 	25, // 22: filer_pb.LookupVolumeResponse.LocationsMapEntry.value:type_name -> filer_pb.Locations
-	0,  // 23: filer_pb.SeaweedFiler.LookupDirectoryEntry:input_type -> filer_pb.LookupDirectoryEntryRequest
-	2,  // 24: filer_pb.SeaweedFiler.ListEntries:input_type -> filer_pb.ListEntriesRequest
-	12, // 25: filer_pb.SeaweedFiler.CreateEntry:input_type -> filer_pb.CreateEntryRequest
-	14, // 26: filer_pb.SeaweedFiler.UpdateEntry:input_type -> filer_pb.UpdateEntryRequest
-	16, // 27: filer_pb.SeaweedFiler.AppendToEntry:input_type -> filer_pb.AppendToEntryRequest
-	18, // 28: filer_pb.SeaweedFiler.DeleteEntry:input_type -> filer_pb.DeleteEntryRequest
-	20, // 29: filer_pb.SeaweedFiler.AtomicRenameEntry:input_type -> filer_pb.AtomicRenameEntryRequest
-	22, // 30: filer_pb.SeaweedFiler.AssignVolume:input_type -> filer_pb.AssignVolumeRequest
-	24, // 31: filer_pb.SeaweedFiler.LookupVolume:input_type -> filer_pb.LookupVolumeRequest
-	29, // 32: filer_pb.SeaweedFiler.CollectionList:input_type -> filer_pb.CollectionListRequest
-	31, // 33: filer_pb.SeaweedFiler.DeleteCollection:input_type -> filer_pb.DeleteCollectionRequest
-	33, // 34: filer_pb.SeaweedFiler.Statistics:input_type -> filer_pb.StatisticsRequest
-	35, // 35: filer_pb.SeaweedFiler.GetFilerConfiguration:input_type -> filer_pb.GetFilerConfigurationRequest
-	37, // 36: filer_pb.SeaweedFiler.SubscribeMetadata:input_type -> filer_pb.SubscribeMetadataRequest
-	37, // 37: filer_pb.SeaweedFiler.SubscribeLocalMetadata:input_type -> filer_pb.SubscribeMetadataRequest
-	40, // 38: filer_pb.SeaweedFiler.KeepConnected:input_type -> filer_pb.KeepConnectedRequest
-	42, // 39: filer_pb.SeaweedFiler.LocateBroker:input_type -> filer_pb.LocateBrokerRequest
-	44, // 40: filer_pb.SeaweedFiler.KvGet:input_type -> filer_pb.KvGetRequest
-	46, // 41: filer_pb.SeaweedFiler.KvPut:input_type -> filer_pb.KvPutRequest
-	1,  // 42: filer_pb.SeaweedFiler.LookupDirectoryEntry:output_type -> filer_pb.LookupDirectoryEntryResponse
-	3,  // 43: filer_pb.SeaweedFiler.ListEntries:output_type -> filer_pb.ListEntriesResponse
-	13, // 44: filer_pb.SeaweedFiler.CreateEntry:output_type -> filer_pb.CreateEntryResponse
-	15, // 45: filer_pb.SeaweedFiler.UpdateEntry:output_type -> filer_pb.UpdateEntryResponse
-	17, // 46: filer_pb.SeaweedFiler.AppendToEntry:output_type -> filer_pb.AppendToEntryResponse
-	19, // 47: filer_pb.SeaweedFiler.DeleteEntry:output_type -> filer_pb.DeleteEntryResponse
-	21, // 48: filer_pb.SeaweedFiler.AtomicRenameEntry:output_type -> filer_pb.AtomicRenameEntryResponse
-	23, // 49: filer_pb.SeaweedFiler.AssignVolume:output_type -> filer_pb.AssignVolumeResponse
-	27, // 50: filer_pb.SeaweedFiler.LookupVolume:output_type -> filer_pb.LookupVolumeResponse
-	30, // 51: filer_pb.SeaweedFiler.CollectionList:output_type -> filer_pb.CollectionListResponse
-	32, // 52: filer_pb.SeaweedFiler.DeleteCollection:output_type -> filer_pb.DeleteCollectionResponse
-	34, // 53: filer_pb.SeaweedFiler.Statistics:output_type -> filer_pb.StatisticsResponse
-	36, // 54: filer_pb.SeaweedFiler.GetFilerConfiguration:output_type -> filer_pb.GetFilerConfigurationResponse
-	38, // 55: filer_pb.SeaweedFiler.SubscribeMetadata:output_type -> filer_pb.SubscribeMetadataResponse
-	38, // 56: filer_pb.SeaweedFiler.SubscribeLocalMetadata:output_type -> filer_pb.SubscribeMetadataResponse
-	41, // 57: filer_pb.SeaweedFiler.KeepConnected:output_type -> filer_pb.KeepConnectedResponse
-	43, // 58: filer_pb.SeaweedFiler.LocateBroker:output_type -> filer_pb.LocateBrokerResponse
-	45, // 59: filer_pb.SeaweedFiler.KvGet:output_type -> filer_pb.KvGetResponse
-	47, // 60: filer_pb.SeaweedFiler.KvPut:output_type -> filer_pb.KvPutResponse
-	42, // [42:61] is the sub-list for method output_type
-	23, // [23:42] is the sub-list for method input_type
-	23, // [23:23] is the sub-list for extension type_name
-	23, // [23:23] is the sub-list for extension extendee
-	0,  // [0:23] is the sub-list for field type_name
+	51, // 23: filer_pb.RemoteStorageMapping.MappingsEntry.value:type_name -> filer_pb.RemoteStorageLocation
+	0,  // 24: filer_pb.SeaweedFiler.LookupDirectoryEntry:input_type -> filer_pb.LookupDirectoryEntryRequest
+	2,  // 25: filer_pb.SeaweedFiler.ListEntries:input_type -> filer_pb.ListEntriesRequest
+	12, // 26: filer_pb.SeaweedFiler.CreateEntry:input_type -> filer_pb.CreateEntryRequest
+	14, // 27: filer_pb.SeaweedFiler.UpdateEntry:input_type -> filer_pb.UpdateEntryRequest
+	16, // 28: filer_pb.SeaweedFiler.AppendToEntry:input_type -> filer_pb.AppendToEntryRequest
+	18, // 29: filer_pb.SeaweedFiler.DeleteEntry:input_type -> filer_pb.DeleteEntryRequest
+	20, // 30: filer_pb.SeaweedFiler.AtomicRenameEntry:input_type -> filer_pb.AtomicRenameEntryRequest
+	22, // 31: filer_pb.SeaweedFiler.AssignVolume:input_type -> filer_pb.AssignVolumeRequest
+	24, // 32: filer_pb.SeaweedFiler.LookupVolume:input_type -> filer_pb.LookupVolumeRequest
+	29, // 33: filer_pb.SeaweedFiler.CollectionList:input_type -> filer_pb.CollectionListRequest
+	31, // 34: filer_pb.SeaweedFiler.DeleteCollection:input_type -> filer_pb.DeleteCollectionRequest
+	33, // 35: filer_pb.SeaweedFiler.Statistics:input_type -> filer_pb.StatisticsRequest
+	35, // 36: filer_pb.SeaweedFiler.GetFilerConfiguration:input_type -> filer_pb.GetFilerConfigurationRequest
+	37, // 37: filer_pb.SeaweedFiler.SubscribeMetadata:input_type -> filer_pb.SubscribeMetadataRequest
+	37, // 38: filer_pb.SeaweedFiler.SubscribeLocalMetadata:input_type -> filer_pb.SubscribeMetadataRequest
+	40, // 39: filer_pb.SeaweedFiler.KeepConnected:input_type -> filer_pb.KeepConnectedRequest
+	42, // 40: filer_pb.SeaweedFiler.LocateBroker:input_type -> filer_pb.LocateBrokerRequest
+	44, // 41: filer_pb.SeaweedFiler.KvGet:input_type -> filer_pb.KvGetRequest
+	46, // 42: filer_pb.SeaweedFiler.KvPut:input_type -> filer_pb.KvPutRequest
+	1,  // 43: filer_pb.SeaweedFiler.LookupDirectoryEntry:output_type -> filer_pb.LookupDirectoryEntryResponse
+	3,  // 44: filer_pb.SeaweedFiler.ListEntries:output_type -> filer_pb.ListEntriesResponse
+	13, // 45: filer_pb.SeaweedFiler.CreateEntry:output_type -> filer_pb.CreateEntryResponse
+	15, // 46: filer_pb.SeaweedFiler.UpdateEntry:output_type -> filer_pb.UpdateEntryResponse
+	17, // 47: filer_pb.SeaweedFiler.AppendToEntry:output_type -> filer_pb.AppendToEntryResponse
+	19, // 48: filer_pb.SeaweedFiler.DeleteEntry:output_type -> filer_pb.DeleteEntryResponse
+	21, // 49: filer_pb.SeaweedFiler.AtomicRenameEntry:output_type -> filer_pb.AtomicRenameEntryResponse
+	23, // 50: filer_pb.SeaweedFiler.AssignVolume:output_type -> filer_pb.AssignVolumeResponse
+	27, // 51: filer_pb.SeaweedFiler.LookupVolume:output_type -> filer_pb.LookupVolumeResponse
+	30, // 52: filer_pb.SeaweedFiler.CollectionList:output_type -> filer_pb.CollectionListResponse
+	32, // 53: filer_pb.SeaweedFiler.DeleteCollection:output_type -> filer_pb.DeleteCollectionResponse
+	34, // 54: filer_pb.SeaweedFiler.Statistics:output_type -> filer_pb.StatisticsResponse
+	36, // 55: filer_pb.SeaweedFiler.GetFilerConfiguration:output_type -> filer_pb.GetFilerConfigurationResponse
+	38, // 56: filer_pb.SeaweedFiler.SubscribeMetadata:output_type -> filer_pb.SubscribeMetadataResponse
+	38, // 57: filer_pb.SeaweedFiler.SubscribeLocalMetadata:output_type -> filer_pb.SubscribeMetadataResponse
+	41, // 58: filer_pb.SeaweedFiler.KeepConnected:output_type -> filer_pb.KeepConnectedResponse
+	43, // 59: filer_pb.SeaweedFiler.LocateBroker:output_type -> filer_pb.LocateBrokerResponse
+	45, // 60: filer_pb.SeaweedFiler.KvGet:output_type -> filer_pb.KvGetResponse
+	47, // 61: filer_pb.SeaweedFiler.KvPut:output_type -> filer_pb.KvPutResponse
+	43, // [43:62] is the sub-list for method output_type
+	24, // [24:43] is the sub-list for method input_type
+	24, // [24:24] is the sub-list for extension type_name
+	24, // [24:24] is the sub-list for extension extendee
+	0,  // [0:24] is the sub-list for field type_name
 }
 
 func init() { file_filer_proto_init() }
@@ -4767,8 +4839,8 @@ func file_filer_proto_init() {
 				return nil
 			}
 		}
-		file_filer_proto_msgTypes[53].Exporter = func(v interface{}, i int) interface{} {
-			switch v := v.(*LocateBrokerResponse_Resource); i {
+		file_filer_proto_msgTypes[51].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*RemoteStorageLocation); i {
 			case 0:
 				return &v.state
 			case 1:
@@ -4780,6 +4852,18 @@ func file_filer_proto_init() {
 			}
 		}
 		file_filer_proto_msgTypes[54].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*LocateBrokerResponse_Resource); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+		file_filer_proto_msgTypes[55].Exporter = func(v interface{}, i int) interface{} {
 			switch v := v.(*FilerConf_PathConf); i {
 			case 0:
 				return &v.state
@@ -4798,7 +4882,7 @@ func file_filer_proto_init() {
 			GoPackagePath: reflect.TypeOf(x{}).PkgPath(),
 			RawDescriptor: file_filer_proto_rawDesc,
 			NumEnums:      0,
-			NumMessages:   56,
+			NumMessages:   57,
 			NumExtensions: 0,
 			NumServices:   1,
 		},
diff --git a/weed/remote_storage/remote_storage.go b/weed/remote_storage/remote_storage.go
index b8c2b55ea..1b4847e63 100644
--- a/weed/remote_storage/remote_storage.go
+++ b/weed/remote_storage/remote_storage.go
@@ -8,22 +8,21 @@ import (
 	"sync"
 )
 
-type RemoteStorageLocation string
-
-func (remote RemoteStorageLocation) NameBucketPath() (storageName, bucket, remotePath string) {
+func ParseLocation(remote string) (loc *filer_pb.RemoteStorageLocation) {
+	loc = &filer_pb.RemoteStorageLocation{}
 	if strings.HasSuffix(string(remote), "/") {
 		remote = remote[:len(remote)-1]
 	}
 	parts := strings.SplitN(string(remote), "/", 3)
 	if len(parts) >= 1 {
-		storageName = parts[0]
+		loc.Name = parts[0]
 	}
 	if len(parts) >= 2 {
-		bucket = parts[1]
+		loc.Bucket = parts[1]
 	}
-	remotePath = string(remote[len(storageName)+1+len(bucket):])
-	if remotePath == "" {
-		remotePath = "/"
+	loc.Path = string(remote[len(loc.Name)+1+len(loc.Bucket):])
+	if loc.Path == "" {
+		loc.Path = "/"
 	}
 	return
 }
@@ -31,8 +30,8 @@ func (remote RemoteStorageLocation) NameBucketPath() (storageName, bucket, remot
 type VisitFunc func(dir string, name string, isDirectory bool, remoteEntry *filer_pb.RemoteEntry) error
 
 type RemoteStorageClient interface {
-	Traverse(remote RemoteStorageLocation, visitFn VisitFunc) error
-	ReadFile(bucket, key string, offset int64, size int64, writeFn func(w io.Writer) error) error
+	Traverse(loc *filer_pb.RemoteStorageLocation, visitFn VisitFunc) error
+	ReadFile(loc *filer_pb.RemoteStorageLocation, offset int64, size int64, writeFn func(w io.Writer) error) error
 }
 
 type RemoteStorageClientMaker interface {
diff --git a/weed/remote_storage/s3/s3_storage_client.go b/weed/remote_storage/s3/s3_storage_client.go
index f994eb69f..d7d050842 100644
--- a/weed/remote_storage/s3/s3_storage_client.go
+++ b/weed/remote_storage/s3/s3_storage_client.go
@@ -10,6 +10,7 @@ import (
 	"github.com/chrislusf/seaweedfs/weed/pb/filer_pb"
 	"github.com/chrislusf/seaweedfs/weed/remote_storage"
 	"github.com/chrislusf/seaweedfs/weed/util"
+	"io"
 )
 
 func init() {
@@ -44,13 +45,12 @@ type s3RemoteStorageClient struct {
 	conn s3iface.S3API
 }
 
-func (s s3RemoteStorageClient) Traverse(remote remote_storage.RemoteStorageLocation, visitFn remote_storage.VisitFunc) (err error) {
+func (s s3RemoteStorageClient) Traverse(remote *filer_pb.RemoteStorageLocation, visitFn remote_storage.VisitFunc) (err error) {
 
-	_, bucket, pathKey := remote.NameBucketPath()
-	pathKey = pathKey[1:]
+	pathKey := remote.Path[1:]
 
 	listInput := &s3.ListObjectsV2Input{
-		Bucket:              aws.String(bucket),
+		Bucket:              aws.String(remote.Bucket),
 		ContinuationToken:   nil,
 		Delimiter:           nil, // not aws.String("/"), iterate through all entries
 		EncodingType:        nil,
@@ -91,3 +91,6 @@ func (s s3RemoteStorageClient) Traverse(remote remote_storage.RemoteStorageLocat
 	}
 	return
 }
+func (s s3RemoteStorageClient) ReadFile(loc *filer_pb.RemoteStorageLocation, offset int64, size int64, writeFn func(w io.Writer) error) error {
+	return nil
+}
diff --git a/weed/shell/command_remote_mount.go b/weed/shell/command_remote_mount.go
index 217be8cef..8f16d27c8 100644
--- a/weed/shell/command_remote_mount.go
+++ b/weed/shell/command_remote_mount.go
@@ -49,7 +49,7 @@ func (c *commandRemoteMount) Do(args []string, commandEnv *CommandEnv, writer io
 		return nil
 	}
 
-	remoteStorageLocation := remote_storage.RemoteStorageLocation(*remote)
+	remoteStorageLocation := remote_storage.ParseLocation(*remote)
 
 	// find configuration for remote storage
 	// remotePath is /<bucket>/path/to/dir
@@ -71,33 +71,30 @@ func (c *commandRemoteMount) Do(args []string, commandEnv *CommandEnv, writer io
 	return nil
 }
 
-func (c *commandRemoteMount) findRemoteStorageConfiguration(commandEnv *CommandEnv, writer io.Writer, remote remote_storage.RemoteStorageLocation) (conf *filer_pb.RemoteConf, err error) {
-
-	// find remote configuration
-	storageName, _, _ := remote.NameBucketPath()
+func (c *commandRemoteMount) findRemoteStorageConfiguration(commandEnv *CommandEnv, writer io.Writer, remote *filer_pb.RemoteStorageLocation) (conf *filer_pb.RemoteConf, err error) {
 
 	// read storage configuration data
 	var confBytes []byte
 	err = commandEnv.WithFilerClient(func(client filer_pb.SeaweedFilerClient) error {
-		confBytes, err = filer.ReadInsideFiler(client, filer.DirectoryEtcRemote, storageName+filer.REMOTE_STORAGE_CONF_SUFFIX)
+		confBytes, err = filer.ReadInsideFiler(client, filer.DirectoryEtcRemote, remote.Name+filer.REMOTE_STORAGE_CONF_SUFFIX)
 		return err
 	})
 	if err != nil {
-		err = fmt.Errorf("no remote storage configuration for %s : %v", storageName, err)
+		err = fmt.Errorf("no remote storage configuration for %s : %v", remote.Name, err)
 		return
 	}
 
 	// unmarshal storage configuration
 	conf = &filer_pb.RemoteConf{}
 	if unMarshalErr := proto.Unmarshal(confBytes, conf); unMarshalErr != nil {
-		err = fmt.Errorf("unmarshal %s/%s: %v", filer.DirectoryEtcRemote, storageName, unMarshalErr)
+		err = fmt.Errorf("unmarshal %s/%s: %v", filer.DirectoryEtcRemote, remote.Name, unMarshalErr)
 		return
 	}
 
 	return
 }
 
-func (c *commandRemoteMount) pullMetadata(commandEnv *CommandEnv, writer io.Writer, dir string, nonEmpty bool, remoteConf *filer_pb.RemoteConf, remote remote_storage.RemoteStorageLocation) error {
+func (c *commandRemoteMount) pullMetadata(commandEnv *CommandEnv, writer io.Writer, dir string, nonEmpty bool, remoteConf *filer_pb.RemoteConf, remote *filer_pb.RemoteStorageLocation) error {
 
 	// find existing directory, and ensure the directory is empty
 	var mountToDir *filer_pb.Entry
@@ -198,7 +195,7 @@ func (c *commandRemoteMount) pullMetadata(commandEnv *CommandEnv, writer io.Writ
 	return nil
 }
 
-func (c *commandRemoteMount) saveMountMapping(commandEnv *CommandEnv, writer io.Writer, dir string, remoteStorageLocation remote_storage.RemoteStorageLocation) (err error) {
+func (c *commandRemoteMount) saveMountMapping(commandEnv *CommandEnv, writer io.Writer, dir string, remoteStorageLocation *filer_pb.RemoteStorageLocation) (err error) {
 
 	// read current mapping
 	var oldContent, newContent []byte