diff --git a/go.mod b/go.mod
index 44950d25c..39acd0e9b 100644
--- a/go.mod
+++ b/go.mod
@@ -56,7 +56,7 @@ require (
 	github.com/prometheus/client_golang v1.3.0
 	github.com/rakyll/statik v0.1.7
 	github.com/rcrowley/go-metrics v0.0.0-20190826022208-cac0b30c2563 // indirect
-	github.com/seaweedfs/fuse v1.0.9
+	github.com/seaweedfs/fuse v1.1.0
 	github.com/seaweedfs/goexif v1.0.2
 	github.com/skip2/go-qrcode v0.0.0-20200617195104-da1b6568686e
 	github.com/spaolacci/murmur3 v1.1.0 // indirect
diff --git a/go.sum b/go.sum
index f0b86cb62..eb16fac4c 100644
--- a/go.sum
+++ b/go.sum
@@ -577,6 +577,8 @@ github.com/seaweedfs/fuse v1.0.8 h1:HBPJTC77OlxwSd2JiTwvLPn8bWTElqQp3xs9vf3C15s=
 github.com/seaweedfs/fuse v1.0.8/go.mod h1:W7ubwr1l7KQsMeUpxFFOFOSxUL/ucTRMAlVYs4xdfQ8=
 github.com/seaweedfs/fuse v1.0.9 h1:3JZoGsW7cmmrd/U5KYcIGR2+EqyBvCYCoCpEdZAz/Dc=
 github.com/seaweedfs/fuse v1.0.9/go.mod h1:+PP6WlkrRUG6KPE+Th2EX5To/PjHaFsvqg/UgQ39aj8=
+github.com/seaweedfs/fuse v1.1.0 h1:cL1qPHFNtFv0UuJTLjKKgWDzfJ4iZzTa4Y7ipc2acGw=
+github.com/seaweedfs/fuse v1.1.0/go.mod h1:+PP6WlkrRUG6KPE+Th2EX5To/PjHaFsvqg/UgQ39aj8=
 github.com/seaweedfs/goexif v1.0.2 h1:p+rTXYdQ2mgxd+1JaTrQ9N8DvYuw9UH9xgYmJ+Bb29E=
 github.com/seaweedfs/goexif v1.0.2/go.mod h1:MrKs5LK0HXdffrdCZrW3OIMegL2xXpC6ThLyXMyjdrk=
 github.com/secsy/goftp v0.0.0-20190720192957-f31499d7c79a h1:C6IhVTxNkhlb0tlCB6JfHOUv1f0xHPK7V8X4HlJZEJw=
diff --git a/weed/command/mount_std.go b/weed/command/mount_std.go
index 23f224cc2..eaa66519e 100644
--- a/weed/command/mount_std.go
+++ b/weed/command/mount_std.go
@@ -208,7 +208,9 @@ func RunMount(option *MountOptions, umask os.FileMode) bool {
 	})
 
 	glog.V(0).Infof("mounted %s%s to %s", filer, mountRoot, dir)
-	err = fs.Serve(c, seaweedFileSystem)
+	server := fs.New(c, nil)
+	seaweedFileSystem.Server = server
+	err = server.Serve(seaweedFileSystem)
 
 	// check if the mount process has an error to report
 	<-c.Ready
diff --git a/weed/filesys/dir.go b/weed/filesys/dir.go
index 3d0a00a8b..e3d0057db 100644
--- a/weed/filesys/dir.go
+++ b/weed/filesys/dir.go
@@ -58,7 +58,7 @@ func (dir *Dir) Attr(ctx context.Context, attr *fuse.Attr) error {
 		return err
 	}
 
-	attr.Inode = util.FullPath(dir.FullPath()).AsInode()
+	// attr.Inode = util.FullPath(dir.FullPath()).AsInode()
 	attr.Mode = os.FileMode(dir.entry.Attributes.FileMode) | os.ModeDir
 	attr.Mtime = time.Unix(dir.entry.Attributes.Mtime, 0)
 	attr.Crtime = time.Unix(dir.entry.Attributes.Crtime, 0)
@@ -82,8 +82,8 @@ func (dir *Dir) Getxattr(ctx context.Context, req *fuse.GetxattrRequest, resp *f
 }
 
 func (dir *Dir) setRootDirAttributes(attr *fuse.Attr) {
-	attr.Inode = 1 // filer2.FullPath(dir.Path).AsInode()
-	attr.Valid = time.Hour
+	// attr.Inode = 1 // filer2.FullPath(dir.Path).AsInode()
+	attr.Valid = time.Second
 	attr.Uid = dir.wfs.option.MountUid
 	attr.Gid = dir.wfs.option.MountGid
 	attr.Mode = dir.wfs.option.MountMode
@@ -91,7 +91,7 @@ func (dir *Dir) setRootDirAttributes(attr *fuse.Attr) {
 	attr.Ctime = dir.wfs.option.MountCtime
 	attr.Mtime = dir.wfs.option.MountMtime
 	attr.Atime = dir.wfs.option.MountMtime
-	attr.BlockSize = 1024 * 1024
+	attr.BlockSize = blockSize
 }
 
 func (dir *Dir) Fsync(ctx context.Context, req *fuse.FsyncRequest) error {
@@ -285,7 +285,7 @@ func (dir *Dir) Lookup(ctx context.Context, req *fuse.LookupRequest, resp *fuse.
 		}
 
 		// resp.EntryValid = time.Second
-		resp.Attr.Inode = fullFilePath.AsInode()
+		// resp.Attr.Inode = fullFilePath.AsInode()
 		resp.Attr.Valid = time.Second
 		resp.Attr.Mtime = time.Unix(entry.Attributes.Mtime, 0)
 		resp.Attr.Crtime = time.Unix(entry.Attributes.Crtime, 0)
@@ -308,13 +308,11 @@ func (dir *Dir) ReadDirAll(ctx context.Context) (ret []fuse.Dirent, err error) {
 	glog.V(4).Infof("dir ReadDirAll %s", dir.FullPath())
 
 	processEachEntryFn := func(entry *filer_pb.Entry, isLast bool) error {
-		fullpath := util.NewFullPath(dir.FullPath(), entry.Name)
-		inode := fullpath.AsInode()
 		if entry.IsDirectory {
-			dirent := fuse.Dirent{Inode: inode, Name: entry.Name, Type: fuse.DT_Dir}
+			dirent := fuse.Dirent{Name: entry.Name, Type: fuse.DT_Dir}
 			ret = append(ret, dirent)
 		} else {
-			dirent := fuse.Dirent{Inode: inode, Name: entry.Name, Type: findFileType(uint16(entry.Attributes.FileMode))}
+			dirent := fuse.Dirent{Name: entry.Name, Type: findFileType(uint16(entry.Attributes.FileMode))}
 			ret = append(ret, dirent)
 		}
 		return nil
diff --git a/weed/filesys/file.go b/weed/filesys/file.go
index a8d6dac29..a210c5152 100644
--- a/weed/filesys/file.go
+++ b/weed/filesys/file.go
@@ -45,7 +45,7 @@ func (file *File) fullpath() util.FullPath {
 
 func (file *File) Attr(ctx context.Context, attr *fuse.Attr) (err error) {
 
-	glog.V(4).Infof("file Attr %s, open:%v, existing attr: %+v", file.fullpath(), file.isOpen, attr)
+	glog.V(4).Infof("file Attr %s, open:%v existing:%v", file.fullpath(), file.isOpen, attr)
 
 	entry := file.entry
 	if file.isOpen <= 0 || entry == nil {
@@ -54,7 +54,7 @@ func (file *File) Attr(ctx context.Context, attr *fuse.Attr) (err error) {
 		}
 	}
 
-	attr.Inode = file.fullpath().AsInode()
+	// attr.Inode = file.fullpath().AsInode()
 	attr.Valid = time.Second
 	attr.Mode = os.FileMode(entry.Attributes.FileMode)
 	attr.Size = filer.FileSize(entry)
@@ -91,9 +91,6 @@ func (file *File) Getxattr(ctx context.Context, req *fuse.GetxattrRequest, resp
 func (file *File) Open(ctx context.Context, req *fuse.OpenRequest, resp *fuse.OpenResponse) (fs.Handle, error) {
 
 	glog.V(4).Infof("file %v open %+v", file.fullpath(), req)
-	if USE_DIRECT_IO {
-		resp.Flags |= fuse.OpenDirectIO
-	}
 
 	handle := file.wfs.AcquireHandle(file, req.Uid, req.Gid)
 
diff --git a/weed/filesys/file_darwin.go b/weed/filesys/file_darwin.go
deleted file mode 100644
index b8806cff7..000000000
--- a/weed/filesys/file_darwin.go
+++ /dev/null
@@ -1,8 +0,0 @@
-//+build darwin
-
-package filesys
-
-const (
-	USE_DIRECT_IO = false
-)
-
diff --git a/weed/filesys/file_other.go b/weed/filesys/file_other.go
deleted file mode 100644
index 8a8693511..000000000
--- a/weed/filesys/file_other.go
+++ /dev/null
@@ -1,7 +0,0 @@
-//+build !darwin
-
-package filesys
-
-const (
-	USE_DIRECT_IO = true
-)
diff --git a/weed/filesys/wfs.go b/weed/filesys/wfs.go
index 6cfadcc18..108e23c85 100644
--- a/weed/filesys/wfs.go
+++ b/weed/filesys/wfs.go
@@ -76,6 +76,7 @@ type WFS struct {
 
 	// throttle writers
 	concurrentWriters *util.LimitedConcurrentExecutor
+	Server            *fs.Server
 }
 type statsCache struct {
 	filer_pb.StatisticsResponse
@@ -104,9 +105,22 @@ func NewSeaweedFileSystem(option *Option) *WFS {
 		fsNode := wfs.fsNodeCache.GetFsNode(filePath)
 		if fsNode != nil {
 			if file, ok := fsNode.(*File); ok {
+				if err := wfs.Server.InvalidateNodeData(file); err != nil {
+					glog.V(4).Infof("InvalidateNodeData %s : %v", filePath, err)
+				}
 				file.clearEntry()
 			}
 		}
+		dir, name := filePath.DirAndName()
+		parent := wfs.root
+		if dir != "/" {
+			parent = wfs.fsNodeCache.GetFsNode(util.FullPath(dir))
+		}
+		if parent != nil {
+			if err := wfs.Server.InvalidateEntry(parent, name); err != nil {
+				glog.V(4).Infof("InvalidateEntry %s : %v", filePath, err)
+			}
+		}
 	})
 	startTime := time.Now()
 	go meta_cache.SubscribeMetaEvents(wfs.metaCache, wfs.signature, wfs, wfs.option.FilerMountRootPath, startTime.UnixNano())