Merge pull request #79 from chrislusf/master

sync

README.md

@@ -93,13 +93,6 @@ and these volume servers manage files and their metadata.
 This relieves concurrency pressure from the central master and spreads file metadata into volume servers, 
 allowing faster file access (O(1), usually just one disk read operation).
 
-SeaweedFS can transparently integrate with the cloud. 
-With hot data on local cluster, and warm data on the cloud with O(1) access time, 
-SeaweedFS can achieve both fast local access time and elastic cloud storage capacity. 
-What's more, the cloud storage access API cost is minimized. 
-Faster and Cheaper than direct cloud storage!
-Signup for future managed SeaweedFS cluster offering at "seaweedfilesystem at gmail dot com".
-
 There is only 40 bytes of disk storage overhead for each file's metadata. 
 It is so simple with O(1) disk reads that you are welcome to challenge the performance with your actual use cases.
 
@@ -115,6 +108,12 @@ For any distributed key value stores, the large values can be offloaded to Seawe
 With the fast access speed and linearly scalable capacity, 
 SeaweedFS can work as a distributed [Key-Large-Value store][KeyLargeValueStore].
 
+SeaweedFS can transparently integrate with the cloud. 
+With hot data on local cluster, and warm data on the cloud with O(1) access time, 
+SeaweedFS can achieve both fast local access time and elastic cloud storage capacity.
+What's more, the cloud storage access API cost is minimized. 
+Faster and Cheaper than direct cloud storage!
+
 [Back to TOC](#table-of-contents)
 
 ## Additional Features ##

go.mod

@@ -6,7 +6,6 @@ require (
 	cloud.google.com/go v0.58.0 // indirect
 	cloud.google.com/go/pubsub v1.3.1
 	cloud.google.com/go/storage v1.9.0
-	github.com/Azure/azure-amqp-common-go/v2 v2.1.0 // indirect
 	github.com/Azure/azure-pipeline-go v0.2.2 // indirect
 	github.com/Azure/azure-storage-blob-go v0.9.0
 	github.com/OneOfOne/xxhash v1.2.2
@@ -62,7 +61,7 @@ require (
 	github.com/pquerna/cachecontrol v0.1.0
 	github.com/prometheus/client_golang v1.3.0
 	github.com/rcrowley/go-metrics v0.0.0-20190826022208-cac0b30c2563 // indirect
-	github.com/seaweedfs/fuse v1.1.6
+	github.com/seaweedfs/fuse v1.1.7
 	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

go.sum

@@ -709,6 +709,8 @@ github.com/seaweedfs/fuse v1.1.5 h1:wyuRh/mDvrvt8ZLDS7YdPSe6nczniSx4sQFs/Jonveo=
 github.com/seaweedfs/fuse v1.1.5/go.mod h1:+PP6WlkrRUG6KPE+Th2EX5To/PjHaFsvqg/UgQ39aj8=
 github.com/seaweedfs/fuse v1.1.6 h1:kvCqaIsCEaYOBw5r8kJPUs9GcbwlIKcScnkPLT7HLuQ=
 github.com/seaweedfs/fuse v1.1.6/go.mod h1:+PP6WlkrRUG6KPE+Th2EX5To/PjHaFsvqg/UgQ39aj8=
+github.com/seaweedfs/fuse v1.1.7 h1:T4L5c/Sn+q8lE+0zCmH2MWvIO+B5TttWOSqK5KQPRMQ=
+github.com/seaweedfs/fuse v1.1.7/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=

k8s/seaweedfs/Chart.yaml

@@ -1,5 +1,5 @@
 apiVersion: v1
 description: SeaweedFS
 name: seaweedfs
-appVersion: "2.49"
+appVersion: "2.50"
-version: 2.49
+version: "2.50"

k8s/seaweedfs/values.yaml

@@ -4,7 +4,7 @@ global:
   registry: ""
   repository: ""
   imageName: chrislusf/seaweedfs
-  # imageTag: "2.49" - started using {.Chart.appVersion}
+  # imageTag: "2.50" - started using {.Chart.appVersion}
   imagePullPolicy: IfNotPresent
   imagePullSecrets: imagepullsecret
   restartPolicy: Always

other/java/client/src/main/proto/filer.proto

@@ -361,6 +361,7 @@ message FilerConf {
         string disk_type = 5;
         bool fsync = 6;
         uint32 volume_growth_count = 7;
+        bool read_only = 8;
     }
     repeated PathConf locations = 2;
 }

weed/command/filer_sync.go

@@ -359,16 +359,19 @@ func genProcessFunction(sourcePath string, targetPath string, dataSink sink.Repl
 	return processEventFn
 }
 
-func buildKey(dataSink sink.ReplicationSink, message *filer_pb.EventNotification, targetPath string, sourceKey util.FullPath, sourcePath string) string {
+func buildKey(dataSink sink.ReplicationSink, message *filer_pb.EventNotification, targetPath string, sourceKey util.FullPath, sourcePath string) (key string) {
 	if !dataSink.IsIncremental() {
-		return util.Join(targetPath, string(sourceKey)[len(sourcePath):])
+		key = util.Join(targetPath, string(sourceKey)[len(sourcePath):])
+	} else {
+		var mTime int64
+		if message.NewEntry != nil {
+			mTime = message.NewEntry.Attributes.Mtime
+		} else if message.OldEntry != nil {
+			mTime = message.OldEntry.Attributes.Mtime
+		}
+		dateKey := time.Unix(mTime, 0).Format("2006-01-02")
+		key = util.Join(targetPath, dateKey, string(sourceKey)[len(sourcePath):])
 	}
-	var mTime int64
+
-	if message.NewEntry != nil {
+	return escapeKey(key)
-		mTime = message.NewEntry.Attributes.Mtime
-	} else if message.OldEntry != nil {
-		mTime = message.OldEntry.Attributes.Mtime
-	}
-	dateKey := time.Unix(mTime, 0).Format("2006-01-02")
-	return util.Join(targetPath, dateKey, string(sourceKey)[len(sourcePath):])
 }

weed/command/filer_sync_std.go

@@ -0,0 +1,7 @@
+// +build !windows
+
+package command
+
+func escapeKey(key string) string {
+	return key
+}

weed/command/filer_sync_windows.go

@@ -0,0 +1,12 @@
+package command
+
+import (
+	"strings"
+)
+
+func escapeKey(key string) string {
+	if strings.Contains(key, ":") {
+		return strings.ReplaceAll(key, ":", "")
+	}
+	return key
+}

weed/command/fuse.go

@@ -12,124 +12,178 @@ func init() {
 	cmdFuse.Run = runFuse // break init cycle
 }
 
+type parameter struct {
+	name string
+	value string
+}
+
 func runFuse(cmd *Command, args []string) bool {
-	argsLen := len(args)
+	rawArgs := strings.Join(args, " ")
-	options := []string{}
+	rawArgsLen := len(rawArgs)
+	option := strings.Builder{}
+	options := []parameter{}
 
-	// at least target mount path should be passed
+	// first parameter
-	if argsLen < 1 {
+	i := 0
-		return false
+	for i = 0; i < rawArgsLen && rawArgs[i] != ' '; i++ {
+		option.WriteByte(rawArgs[i])
+	}
+	options = append(options, parameter{"arg0", option.String()})
+	option.Reset()
+
+	for i++; i < rawArgsLen; i++ {
+
+		// space separator check for filled option
+		if rawArgs[i] == ' ' {
+			if option.Len() > 0 {
+				options = append(options, parameter{option.String(), "true"})
+				option.Reset()
+			}
+
+		// dash separator read option until next space
+		} else if rawArgs[i] == '-' {
+			for i++; i < rawArgsLen && rawArgs[i] != ' '; i++ {
+				option.WriteByte(rawArgs[i])
+			}
+			options = append(options, parameter{option.String(), "true"})
+			option.Reset()
+
+		// equal separator start option with pending value
+		} else if rawArgs[i] == '=' {
+			name := option.String()
+			option.Reset()
+
+			for i++; i < rawArgsLen && rawArgs[i] != ','; i++ {
+				// double quote separator read option until next double quote
+				if rawArgs[i] == '"' {
+					for i++; i < rawArgsLen && rawArgs[i] != '"'; i++ {
+						option.WriteByte(rawArgs[i])
+					}
+
+				// single quote separator read option until next single quote
+				} else if rawArgs[i] == '\'' {
+					for i++; i < rawArgsLen && rawArgs[i] != '\''; i++ {
+						option.WriteByte(rawArgs[i])
+					}
+
+				// add chars before comma
+				} else if rawArgs[i] != ' ' {
+					option.WriteByte(rawArgs[i])
+				}
+			}
+
+			options = append(options, parameter{name, option.String()})
+			option.Reset()
+
+		// comma separator just read current option
+		} else if rawArgs[i] == ',' {
+			options = append(options, parameter{option.String(), "true"})
+			option.Reset()
+
+		// what is not a separator fill option buffer
+		} else {
+			option.WriteByte(rawArgs[i])
+		}
 	}
 
-	// first option is always target mount path
+	// get residual option data
-	mountOptions.dir = &args[0]
+	if option.Len() > 0 {
+		// add value to pending option
+		options = append(options, parameter{option.String(), "true"})
+		option.Reset()
+	}
 
-	// scan parameters looking for one or more -o options
+	// scan each parameter
-	// -o options receive parameters on format key=value[,key=value]...
+	for i := 0; i < len(options); i++ {
-	for i := 0; i < argsLen; i++ {
+		parameter := options[i]
-		if args[i] == "-o" && i+1 <= argsLen {
+
-			options = strings.Split(args[i+1], ",")
+		switch parameter.name  {
+		case "arg0":
+			mountOptions.dir = &parameter.value
+		case "filer":
+			mountOptions.filer = &parameter.value
+		case "filer.path":
+			mountOptions.filerMountRootPath = &parameter.value
+		case "dirAutoCreate":
+			if parsed, err := strconv.ParseBool(parameter.value); err != nil {
+				mountOptions.dirAutoCreate = &parsed
+			} else {
+				panic(fmt.Errorf("dirAutoCreate: %s", err))
+			}
+		case "collection":
+			mountOptions.collection = &parameter.value
+		case "replication":
+			mountOptions.replication = &parameter.value
+		case "disk":
+			mountOptions.diskType = &parameter.value
+		case "ttl":
+			if parsed, err := strconv.ParseInt(parameter.value, 0, 32); err != nil {
+				intValue := int(parsed)
+				mountOptions.ttlSec = &intValue
+			} else {
+				panic(fmt.Errorf("ttl: %s", err))
+			}
+		case "chunkSizeLimitMB":
+			if parsed, err := strconv.ParseInt(parameter.value, 0, 32); err != nil {
+				intValue := int(parsed)
+				mountOptions.chunkSizeLimitMB = &intValue
+			} else {
+				panic(fmt.Errorf("chunkSizeLimitMB: %s", err))
+			}
+		case "concurrentWriters":
 			i++
-		}
+			if parsed, err := strconv.ParseInt(parameter.value, 0, 32); err != nil {
-	}
+				intValue := int(parsed)
-
+				mountOptions.concurrentWriters = &intValue
-	// for each option passed with -o
+			} else {
-	for _, option := range options {
+				panic(fmt.Errorf("concurrentWriters: %s", err))
-		// split just first = character
+			}
-		parts := strings.SplitN(option, "=", 2)
+		case "cacheDir":
-
+			mountOptions.cacheDir = &parameter.value
-		// if doesn't key and value skip
+		case "cacheCapacityMB":
-		if len(parts) != 2 {
+			if parsed, err := strconv.ParseInt(parameter.value, 0, 64); err != nil {
-			continue
+				mountOptions.cacheSizeMB = &parsed
-		}
+			} else {
-
+				panic(fmt.Errorf("cacheCapacityMB: %s", err))
-		key, value := parts[0], parts[1]
+			}
-
+		case "dataCenter":
-		// switch key keeping "weed mount" parameters
+			mountOptions.dataCenter = &parameter.value
-		switch key {
+		case "allowOthers":
-			case "filer":
+			if parsed, err := strconv.ParseBool(parameter.value); err != nil {
-				mountOptions.filer = &value
+				mountOptions.allowOthers = &parsed
-			case "filer.path":
+			} else {
-				mountOptions.filerMountRootPath = &value
+				panic(fmt.Errorf("allowOthers: %s", err))
-			case "dirAutoCreate":
+			}
-				if parsed, err := strconv.ParseBool(value); err != nil {
+		case "umask":
-					mountOptions.dirAutoCreate = &parsed
+			mountOptions.umaskString = &parameter.value
-				} else {
+		case "nonempty":
-					panic(fmt.Errorf("dirAutoCreate: %s", err))
+			if parsed, err := strconv.ParseBool(parameter.value); err != nil {
-				}
+				mountOptions.nonempty = &parsed
-			case "collection":
+			} else {
-				mountOptions.collection = &value
+				panic(fmt.Errorf("nonempty: %s", err))
-			case "replication":
+			}
-				mountOptions.replication = &value
+		case "volumeServerAccess":
-			case "disk":
+			mountOptions.volumeServerAccess = &parameter.value
-				mountOptions.diskType = &value
+		case "map.uid":
-			case "ttl":
+			mountOptions.uidMap = &parameter.value
-				if parsed, err := strconv.ParseInt(value, 0, 32); err != nil {
+		case "map.gid":
-					intValue := int(parsed)
+			mountOptions.gidMap = &parameter.value
-					mountOptions.ttlSec = &intValue
+		case "readOnly":
-				} else {
+			if parsed, err := strconv.ParseBool(parameter.value); err != nil {
-					panic(fmt.Errorf("ttl: %s", err))
+				mountOptions.readOnly = &parsed
-				}
+			} else {
-			case "chunkSizeLimitMB":
+				panic(fmt.Errorf("readOnly: %s", err))
-				if parsed, err := strconv.ParseInt(value, 0, 32); err != nil {
+			}
-					intValue := int(parsed)
+		case "cpuprofile":
-					mountOptions.chunkSizeLimitMB = &intValue
+			mountCpuProfile = &parameter.value
-				} else {
+		case "memprofile":
-					panic(fmt.Errorf("chunkSizeLimitMB: %s", err))
+			mountMemProfile = &parameter.value
-				}
+		case "readRetryTime":
-			case "concurrentWriters":
+			if parsed, err := time.ParseDuration(parameter.value); err != nil {
-				if parsed, err := strconv.ParseInt(value, 0, 32); err != nil {
+				mountReadRetryTime = &parsed
-					intValue := int(parsed)
+			} else {
-					mountOptions.concurrentWriters = &intValue
+				panic(fmt.Errorf("readRetryTime: %s", err))
-				} else {
+			}
-					panic(fmt.Errorf("concurrentWriters: %s", err))
-				}
-			case "cacheDir":
-				mountOptions.cacheDir = &value
-			case "cacheCapacityMB":
-				if parsed, err := strconv.ParseInt(value, 0, 64); err != nil {
-					mountOptions.cacheSizeMB = &parsed
-				} else {
-					panic(fmt.Errorf("cacheCapacityMB: %s", err))
-				}
-			case "dataCenter":
-				mountOptions.dataCenter = &value
-			case "allowOthers":
-				if parsed, err := strconv.ParseBool(value); err != nil {
-					mountOptions.allowOthers = &parsed
-				} else {
-					panic(fmt.Errorf("allowOthers: %s", err))
-				}
-			case "umask":
-				mountOptions.umaskString = &value
-			case "nonempty":
-				if parsed, err := strconv.ParseBool(value); err != nil {
-					mountOptions.nonempty = &parsed
-				} else {
-					panic(fmt.Errorf("nonempty: %s", err))
-				}
-			case "volumeServerAccess":
-				mountOptions.volumeServerAccess = &value
-			case "map.uid":
-				mountOptions.uidMap = &value
-			case "map.gid":
-				mountOptions.gidMap = &value
-			case "readOnly":
-				if parsed, err := strconv.ParseBool(value); err != nil {
-					mountOptions.readOnly = &parsed
-				} else {
-					panic(fmt.Errorf("readOnly: %s", err))
-				}
-			case "cpuprofile":
-				mountCpuProfile = &value
-			case "memprofile":
-				mountMemProfile = &value
-			case "readRetryTime":
-				if parsed, err := time.ParseDuration(value); err != nil {
-					mountReadRetryTime = &parsed
-				} else {
-					panic(fmt.Errorf("readRetryTime: %s", err))
-				}
 		}
 	}
 
@@ -160,6 +214,9 @@ var cmdFuse = &Command{
   mount -t fuse./home/user/bin/weed fuse /mnt -o "filer=localhost:8888,filer.path=/"
   mount -t fuse "/home/user/bin/weed#fuse" /mnt -o "filer=localhost:8888,filer.path=/"
 
+  To pass more than one parameter use quotes, example:
+  mount -t weed fuse /mnt -o "filer='192.168.0.1:8888,192.168.0.2:8888',filer.path=/"
+
   To check valid options look "weed mount --help"
   `,
 }

weed/command/mount_std.go

@@ -5,15 +5,18 @@ package command
 import (
 	"context"
 	"fmt"
-	"github.com/chrislusf/seaweedfs/weed/storage/types"
 	"os"
 	"os/user"
 	"path"
+	"path/filepath"
 	"runtime"
 	"strconv"
 	"strings"
+	"syscall"
 	"time"
 
+	"github.com/chrislusf/seaweedfs/weed/storage/types"
+
 	"github.com/chrislusf/seaweedfs/weed/filesys/meta_cache"
 
 	"github.com/seaweedfs/fuse"
@@ -49,6 +52,21 @@ func runMount(cmd *Command, args []string) bool {
 	return RunMount(&mountOptions, os.FileMode(umask))
 }
 
+func getParentInode(mountDir string) (uint64, error) {
+	parentDir := filepath.Clean(filepath.Join(mountDir, ".."))
+	fi, err := os.Stat(parentDir)
+	if err != nil {
+		return 0, err
+	}
+
+	stat, ok := fi.Sys().(*syscall.Stat_t)
+	if !ok {
+		return 0, nil
+	}
+
+	return stat.Ino, nil
+}
+
 func RunMount(option *MountOptions, umask os.FileMode) bool {
 
 	filers := strings.Split(*option.filer, ",")
@@ -85,13 +103,19 @@ func RunMount(option *MountOptions, umask os.FileMode) bool {
 
 	filerMountRootPath := *option.filerMountRootPath
 	dir := util.ResolvePath(*option.dir)
-	chunkSizeLimitMB := *mountOptions.chunkSizeLimitMB
+	parentInode, err := getParentInode(dir)
+	if err != nil {
+		glog.Errorf("failed to retrieve inode for parent directory of %s: %v", dir, err)
+		return true
+	}
 
 	fmt.Printf("This is SeaweedFS version %s %s %s\n", util.Version(), runtime.GOOS, runtime.GOARCH)
 	if dir == "" {
 		fmt.Printf("Please specify the mount directory via \"-dir\"")
 		return false
 	}
+
+	chunkSizeLimitMB := *mountOptions.chunkSizeLimitMB
 	if chunkSizeLimitMB <= 0 {
 		fmt.Printf("Please specify a reasonable buffer size.")
 		return false
@@ -199,6 +223,7 @@ func RunMount(option *MountOptions, umask os.FileMode) bool {
 		MountMode:          mountMode,
 		MountCtime:         fileInfo.ModTime(),
 		MountMtime:         time.Now(),
+		MountParentInode:   parentInode,
 		Umask:              umask,
 		VolumeServerAccess: *mountOptions.volumeServerAccess,
 		Cipher:             cipher,

weed/command/scaffold.go

@@ -356,13 +356,14 @@ sub_url = "rabbit://myqueue"
 
 	REPLICATION_TOML_EXAMPLE = `
 # A sample TOML config file for replicating SeaweedFS filer
-# Used with "weed filer.replicate"
+# Used with "weed filer.backup"
+# Using with "weed filer.replicate" is deprecated.
 # Put this file to one of the location, with descending priority
 #    ./replication.toml
 #    $HOME/.seaweedfs/replication.toml
 #    /etc/seaweedfs/replication.toml
 
-[source.filer]
+[source.filer]  # deprecated. Only useful with "weed filer.replicate"
 enabled = true
 grpcAddress = "localhost:18888"
 # all files under this directory tree are replicated.

weed/command/server.go

@@ -245,7 +245,7 @@ func runServer(cmd *Command, args []string) bool {
 
 	// start volume server
 	if *isStartingVolumeServer {
-		minFreeSpaces := util.MustParseMinFreeSpace(*minFreeSpace, *minFreeSpacePercent)
+		minFreeSpaces := util.MustParseMinFreeSpace(*volumeMinFreeSpace, *volumeMinFreeSpacePercent)
 		go serverOptions.v.startVolumeServer(*volumeDataFolders, *volumeMaxDataVolumeCounts, *serverWhiteListOption, minFreeSpaces)
 	}
 

weed/filer/filer_conf.go

@@ -126,6 +126,9 @@ func mergePathConf(a, b *filer_pb.FilerConf_PathConf) {
 	if b.VolumeGrowthCount > 0 {
 		a.VolumeGrowthCount = b.VolumeGrowthCount
 	}
+	if b.ReadOnly {
+		a.ReadOnly = b.ReadOnly
+	}
 }
 
 func (fc *FilerConf) ToProto() *filer_pb.FilerConf {

weed/filer/filer_conf_test.go

@@ -24,6 +24,18 @@ func TestFilerConf(t *testing.T) {
 			LocationPrefix: "/buckets/",
 			Replication:    "001",
 		},
+		{
+			LocationPrefix: "/buckets",
+			ReadOnly:       false,
+		},
+		{
+			LocationPrefix: "/buckets/xxx",
+			ReadOnly:       true,
+		},
+		{
+			LocationPrefix: "/buckets/xxx/yyy",
+			ReadOnly:       false,
+		},
 	}}
 	fc.doLoadConf(conf)
 
@@ -31,4 +43,7 @@ func TestFilerConf(t *testing.T) {
 	assert.Equal(t, "abcd", fc.MatchStorageRule("/buckets/abcd/jasdf").Collection)
 	assert.Equal(t, "001", fc.MatchStorageRule("/buckets/abc/jasdf").Replication)
 
+	assert.Equal(t, true, fc.MatchStorageRule("/buckets/xxx/yyy/zzz").ReadOnly)
+	assert.Equal(t, false, fc.MatchStorageRule("/buckets/other").ReadOnly)
+
 }

weed/filesys/dir.go

@@ -54,28 +54,27 @@ func (dir *Dir) Id() uint64 {
 
 func (dir *Dir) Attr(ctx context.Context, attr *fuse.Attr) error {
 
-	// https://github.com/bazil/fuse/issues/196
-	attr.Valid = time.Second
-
-	if dir.FullPath() == dir.wfs.option.FilerMountRootPath {
-		dir.setRootDirAttributes(attr)
-		glog.V(3).Infof("root dir Attr %s, attr: %+v", dir.FullPath(), attr)
-		return nil
-	}
-
 	entry, err := dir.maybeLoadEntry()
 	if err != nil {
-		glog.V(3).Infof("dir Attr %s,err: %+v", dir.FullPath(), err)
+		glog.V(3).Infof("dir Attr %s, err: %+v", dir.FullPath(), err)
 		return err
 	}
 
+	// https://github.com/bazil/fuse/issues/196
+	attr.Valid = time.Second
 	attr.Inode = dir.Id()
 	attr.Mode = os.FileMode(entry.Attributes.FileMode) | os.ModeDir
 	attr.Mtime = time.Unix(entry.Attributes.Mtime, 0)
 	attr.Crtime = time.Unix(entry.Attributes.Crtime, 0)
+	attr.Ctime = time.Unix(entry.Attributes.Crtime, 0)
+	attr.Atime = time.Unix(entry.Attributes.Mtime, 0)
 	attr.Gid = entry.Attributes.Gid
 	attr.Uid = entry.Attributes.Uid
 
+	if dir.FullPath() == dir.wfs.option.FilerMountRootPath {
+		attr.BlockSize = blockSize
+	}
+
 	glog.V(4).Infof("dir Attr %s, attr: %+v", dir.FullPath(), attr)
 
 	return nil
@@ -93,20 +92,6 @@ func (dir *Dir) Getxattr(ctx context.Context, req *fuse.GetxattrRequest, resp *f
 	return getxattr(entry, req, resp)
 }
 
-func (dir *Dir) setRootDirAttributes(attr *fuse.Attr) {
-	// attr.Inode = 1 // filer2.FullPath(dir.Path).AsInode()
-	attr.Valid = time.Second
-	attr.Inode = dir.Id()
-	attr.Uid = dir.wfs.option.MountUid
-	attr.Gid = dir.wfs.option.MountGid
-	attr.Mode = dir.wfs.option.MountMode
-	attr.Crtime = dir.wfs.option.MountCtime
-	attr.Ctime = dir.wfs.option.MountCtime
-	attr.Mtime = dir.wfs.option.MountMtime
-	attr.Atime = dir.wfs.option.MountMtime
-	attr.BlockSize = blockSize
-}
-
 func (dir *Dir) Fsync(ctx context.Context, req *fuse.FsyncRequest) error {
 	// fsync works at OS level
 	// write the file chunks to the filerGrpcAddress
@@ -375,6 +360,28 @@ func (dir *Dir) ReadDirAll(ctx context.Context) (ret []fuse.Dirent, err error) {
 		glog.Errorf("list meta cache: %v", listErr)
 		return nil, fuse.EIO
 	}
+
+	// create proper . and .. directories
+	ret = append(ret, fuse.Dirent{
+		Inode: dirPath.AsInode(),
+		Name:  ".",
+		Type:  fuse.DT_Dir,
+	})
+
+	// return the correct parent inode for the mount root
+	var inode uint64
+	if string(dirPath) == dir.wfs.option.FilerMountRootPath {
+		inode = dir.wfs.option.MountParentInode
+	} else {
+		inode = util.FullPath(dir.parent.FullPath()).AsInode()
+	}
+
+	ret = append(ret, fuse.Dirent{
+		Inode: inode,
+		Name:  "..",
+		Type:  fuse.DT_Dir,
+	})
+
 	return
 }
 

weed/filesys/file.go

@@ -115,16 +115,6 @@ func (file *File) Setattr(ctx context.Context, req *fuse.SetattrRequest, resp *f
 	if err != nil {
 		return err
 	}
-	if file.isOpen > 0 {
-		file.wfs.handlesLock.Lock()
-		fileHandle := file.wfs.handles[file.Id()]
-		file.wfs.handlesLock.Unlock()
-
-		if fileHandle != nil {
-			fileHandle.Lock()
-			defer fileHandle.Unlock()
-		}
-	}
 
 	if req.Valid.Size() {
 
@@ -207,6 +197,11 @@ func (file *File) Setxattr(ctx context.Context, req *fuse.SetxattrRequest) error
 	if err := setxattr(entry, req); err != nil {
 		return err
 	}
+	file.dirtyMetadata = true
+
+	if file.isOpen > 0 {
+		return nil
+	}
 
 	return file.saveEntry(entry)
 
@@ -224,6 +219,11 @@ func (file *File) Removexattr(ctx context.Context, req *fuse.RemovexattrRequest)
 	if err := removexattr(entry, req); err != nil {
 		return err
 	}
+	file.dirtyMetadata = true
+
+	if file.isOpen > 0 {
+		return nil
+	}
 
 	return file.saveEntry(entry)
 
@@ -351,6 +351,8 @@ func (file *File) saveEntry(entry *filer_pb.Entry) error {
 
 		file.wfs.metaCache.InsertEntry(context.Background(), filer.FromPbEntry(request.Directory, request.Entry))
 
+		file.dirtyMetadata = false
+
 		return nil
 	})
 }

weed/filesys/meta_cache/meta_cache_subscribe.go

@@ -40,9 +40,22 @@ func SubscribeMetaEvents(mc *MetaCache, selfSignature int32, client filer_pb.Fil
 			newEntry = filer.FromPbEntry(dir, message.NewEntry)
 		}
 		err := mc.AtomicUpdateEntryFromFiler(context.Background(), oldPath, newEntry)
-		if err == nil && message.OldEntry != nil && message.NewEntry != nil {
+		if err == nil {
-			key := util.NewFullPath(dir, message.NewEntry.Name)
+			if message.OldEntry != nil && message.NewEntry != nil {
-			mc.invalidateFunc(key)
+				if message.OldEntry.Name == message.NewEntry.Name {
+					// no need to invalidate
+				} else {
+					oldKey := util.NewFullPath(resp.Directory, message.OldEntry.Name)
+					mc.invalidateFunc(oldKey)
+					newKey := util.NewFullPath(dir, message.NewEntry.Name)
+					mc.invalidateFunc(newKey)
+				}
+			} else if message.OldEntry == nil && message.NewEntry != nil {
+				// no need to invaalidate
+			} else if message.OldEntry != nil && message.NewEntry == nil {
+				oldKey := util.NewFullPath(resp.Directory, message.OldEntry.Name)
+				mc.invalidateFunc(oldKey)
+			}
 		}
 
 		return err

weed/filesys/wfs.go

@@ -3,9 +3,6 @@ package filesys
 import (
 	"context"
 	"fmt"
-	"github.com/chrislusf/seaweedfs/weed/filer"
-	"github.com/chrislusf/seaweedfs/weed/storage/types"
-	"github.com/chrislusf/seaweedfs/weed/wdclient"
 	"math"
 	"math/rand"
 	"os"
@@ -14,6 +11,10 @@ import (
 	"sync"
 	"time"
 
+	"github.com/chrislusf/seaweedfs/weed/filer"
+	"github.com/chrislusf/seaweedfs/weed/storage/types"
+	"github.com/chrislusf/seaweedfs/weed/wdclient"
+
 	"google.golang.org/grpc"
 
 	"github.com/chrislusf/seaweedfs/weed/util/grace"
@@ -46,11 +47,12 @@ type Option struct {
 	DataCenter         string
 	Umask              os.FileMode
 
-	MountUid   uint32
+	MountUid         uint32
-	MountGid   uint32
+	MountGid         uint32
-	MountMode  os.FileMode
+	MountMode        os.FileMode
-	MountCtime time.Time
+	MountCtime       time.Time
-	MountMtime time.Time
+	MountMtime       time.Time
+	MountParentInode uint64
 
 	VolumeServerAccess string // how to access volume servers
 	Cipher             bool   // whether encrypt data on volume server

weed/filesys/xattr.go

@@ -113,6 +113,21 @@ func (wfs *WFS) maybeLoadEntry(dir, name string) (entry *filer_pb.Entry, err err
 	fullpath := util.NewFullPath(dir, name)
 	// glog.V(3).Infof("read entry cache miss %s", fullpath)
 
+	// return a valid entry for the mount root
+	if string(fullpath) == wfs.option.FilerMountRootPath {
+		return &filer_pb.Entry{
+			Name:        wfs.option.FilerMountRootPath,
+			IsDirectory: true,
+			Attributes: &filer_pb.FuseAttributes{
+				Mtime:    wfs.option.MountMtime.Unix(),
+				FileMode: uint32(wfs.option.MountMode),
+				Uid:      wfs.option.MountUid,
+				Gid:      wfs.option.MountGid,
+				Crtime:   wfs.option.MountCtime.Unix(),
+			},
+		}, nil
+	}
+
 	// read from async meta cache
 	meta_cache.EnsureVisited(wfs.metaCache, wfs, util.FullPath(dir))
 	cachedEntry, cacheErr := wfs.metaCache.FindEntry(context.Background(), fullpath)

weed/pb/filer.proto

@@ -361,6 +361,7 @@ message FilerConf {
         string disk_type = 5;
         bool fsync = 6;
         uint32 volume_growth_count = 7;
+        bool read_only = 8;
     }
     repeated PathConf locations = 2;
 }

weed/pb/filer_pb/filer.pb.go

@@ -3135,6 +3135,7 @@ type FilerConf_PathConf struct {
 	DiskType          string `protobuf:"bytes,5,opt,name=disk_type,json=diskType,proto3" json:"disk_type,omitempty"`
 	Fsync             bool   `protobuf:"varint,6,opt,name=fsync,proto3" json:"fsync,omitempty"`
 	VolumeGrowthCount uint32 `protobuf:"varint,7,opt,name=volume_growth_count,json=volumeGrowthCount,proto3" json:"volume_growth_count,omitempty"`
+	ReadOnly          bool   `protobuf:"varint,8,opt,name=read_only,json=readOnly,proto3" json:"read_only,omitempty"`
 }
 
 func (x *FilerConf_PathConf) Reset() {
@@ -3218,6 +3219,13 @@ func (x *FilerConf_PathConf) GetVolumeGrowthCount() uint32 {
 	return 0
 }
 
+func (x *FilerConf_PathConf) GetReadOnly() bool {
+	if x != nil {
+		return x.ReadOnly
+	}
+	return false
+}
+
 var File_filer_proto protoreflect.FileDescriptor
 
 var file_filer_proto_rawDesc = []byte{
@@ -3594,13 +3602,13 @@ var file_filer_proto_rawDesc = []byte{
 	0x75, 0x65, 0x18, 0x02, 0x20, 0x01, 0x28, 0x0c, 0x52, 0x05, 0x76, 0x61, 0x6c, 0x75, 0x65, 0x22,
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+	0x09, 0x6c, 0x6f, 0x63, 0x61, 0x74, 0x69, 0x6f, 0x6e, 0x73, 0x1a, 0x87, 0x02, 0x0a, 0x08, 0x50,
 	0x61, 0x74, 0x68, 0x43, 0x6f, 0x6e, 0x66, 0x12, 0x27, 0x0a, 0x0f, 0x6c, 0x6f, 0x63, 0x61, 0x74,
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@@ -3615,114 +3623,116 @@ var file_filer_proto_rawDesc = []byte{
 	0x52, 0x05, 0x66, 0x73, 0x79, 0x6e, 0x63, 0x12, 0x2e, 0x0a, 0x13, 0x76, 0x6f, 0x6c, 0x75, 0x6d,
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-	0x4d, 0x65, 0x74, 0x61, 0x64, 0x61, 0x74, 0x61, 0x12, 0x22, 0x2e, 0x66, 0x69, 0x6c, 0x65, 0x72,
+	0x74, 0x61, 0x64, 0x61, 0x74, 0x61, 0x52, 0x65, 0x73, 0x70, 0x6f, 0x6e, 0x73, 0x65, 0x22, 0x00,
-	0x5f, 0x70, 0x62, 0x2e, 0x53, 0x75, 0x62, 0x73, 0x63, 0x72, 0x69, 0x62, 0x65, 0x4d, 0x65, 0x74,
+	0x30, 0x01, 0x12, 0x56, 0x0a, 0x0d, 0x4b, 0x65, 0x65, 0x70, 0x43, 0x6f, 0x6e, 0x6e, 0x65, 0x63,
-	0x61, 0x64, 0x61, 0x74, 0x61, 0x52, 0x65, 0x71, 0x75, 0x65, 0x73, 0x74, 0x1a, 0x23, 0x2e, 0x66,
+	0x74, 0x65, 0x64, 0x12, 0x1e, 0x2e, 0x66, 0x69, 0x6c, 0x65, 0x72, 0x5f, 0x70, 0x62, 0x2e, 0x4b,
-	0x69, 0x6c, 0x65, 0x72, 0x5f, 0x70, 0x62, 0x2e, 0x53, 0x75, 0x62, 0x73, 0x63, 0x72, 0x69, 0x62,
+	0x65, 0x65, 0x70, 0x43, 0x6f, 0x6e, 0x6e, 0x65, 0x63, 0x74, 0x65, 0x64, 0x52, 0x65, 0x71, 0x75,
-	0x65, 0x4d, 0x65, 0x74, 0x61, 0x64, 0x61, 0x74, 0x61, 0x52, 0x65, 0x73, 0x70, 0x6f, 0x6e, 0x73,
+	0x65, 0x73, 0x74, 0x1a, 0x1f, 0x2e, 0x66, 0x69, 0x6c, 0x65, 0x72, 0x5f, 0x70, 0x62, 0x2e, 0x4b,
-	0x65, 0x22, 0x00, 0x30, 0x01, 0x12, 0x56, 0x0a, 0x0d, 0x4b, 0x65, 0x65, 0x70, 0x43, 0x6f, 0x6e,
+	0x65, 0x65, 0x70, 0x43, 0x6f, 0x6e, 0x6e, 0x65, 0x63, 0x74, 0x65, 0x64, 0x52, 0x65, 0x73, 0x70,
-	0x6e, 0x65, 0x63, 0x74, 0x65, 0x64, 0x12, 0x1e, 0x2e, 0x66, 0x69, 0x6c, 0x65, 0x72, 0x5f, 0x70,
+	0x6f, 0x6e, 0x73, 0x65, 0x22, 0x00, 0x28, 0x01, 0x30, 0x01, 0x12, 0x4f, 0x0a, 0x0c, 0x4c, 0x6f,
-	0x62, 0x2e, 0x4b, 0x65, 0x65, 0x70, 0x43, 0x6f, 0x6e, 0x6e, 0x65, 0x63, 0x74, 0x65, 0x64, 0x52,
+	0x63, 0x61, 0x74, 0x65, 0x42, 0x72, 0x6f, 0x6b, 0x65, 0x72, 0x12, 0x1d, 0x2e, 0x66, 0x69, 0x6c,
-	0x65, 0x71, 0x75, 0x65, 0x73, 0x74, 0x1a, 0x1f, 0x2e, 0x66, 0x69, 0x6c, 0x65, 0x72, 0x5f, 0x70,
+	0x65, 0x72, 0x5f, 0x70, 0x62, 0x2e, 0x4c, 0x6f, 0x63, 0x61, 0x74, 0x65, 0x42, 0x72, 0x6f, 0x6b,
-	0x62, 0x2e, 0x4b, 0x65, 0x65, 0x70, 0x43, 0x6f, 0x6e, 0x6e, 0x65, 0x63, 0x74, 0x65, 0x64, 0x52,
+	0x65, 0x72, 0x52, 0x65, 0x71, 0x75, 0x65, 0x73, 0x74, 0x1a, 0x1e, 0x2e, 0x66, 0x69, 0x6c, 0x65,
-	0x65, 0x73, 0x70, 0x6f, 0x6e, 0x73, 0x65, 0x22, 0x00, 0x28, 0x01, 0x30, 0x01, 0x12, 0x4f, 0x0a,
+	0x72, 0x5f, 0x70, 0x62, 0x2e, 0x4c, 0x6f, 0x63, 0x61, 0x74, 0x65, 0x42, 0x72, 0x6f, 0x6b, 0x65,
-	0x0c, 0x4c, 0x6f, 0x63, 0x61, 0x74, 0x65, 0x42, 0x72, 0x6f, 0x6b, 0x65, 0x72, 0x12, 0x1d, 0x2e,
+	0x72, 0x52, 0x65, 0x73, 0x70, 0x6f, 0x6e, 0x73, 0x65, 0x22, 0x00, 0x12, 0x3a, 0x0a, 0x05, 0x4b,
-	0x66, 0x69, 0x6c, 0x65, 0x72, 0x5f, 0x70, 0x62, 0x2e, 0x4c, 0x6f, 0x63, 0x61, 0x74, 0x65, 0x42,
+	0x76, 0x47, 0x65, 0x74, 0x12, 0x16, 0x2e, 0x66, 0x69, 0x6c, 0x65, 0x72, 0x5f, 0x70, 0x62, 0x2e,
-	0x72, 0x6f, 0x6b, 0x65, 0x72, 0x52, 0x65, 0x71, 0x75, 0x65, 0x73, 0x74, 0x1a, 0x1e, 0x2e, 0x66,
+	0x4b, 0x76, 0x47, 0x65, 0x74, 0x52, 0x65, 0x71, 0x75, 0x65, 0x73, 0x74, 0x1a, 0x17, 0x2e, 0x66,
-	0x69, 0x6c, 0x65, 0x72, 0x5f, 0x70, 0x62, 0x2e, 0x4c, 0x6f, 0x63, 0x61, 0x74, 0x65, 0x42, 0x72,
+	0x69, 0x6c, 0x65, 0x72, 0x5f, 0x70, 0x62, 0x2e, 0x4b, 0x76, 0x47, 0x65, 0x74, 0x52, 0x65, 0x73,
-	0x6f, 0x6b, 0x65, 0x72, 0x52, 0x65, 0x73, 0x70, 0x6f, 0x6e, 0x73, 0x65, 0x22, 0x00, 0x12, 0x3a,
+	0x70, 0x6f, 0x6e, 0x73, 0x65, 0x22, 0x00, 0x12, 0x3a, 0x0a, 0x05, 0x4b, 0x76, 0x50, 0x75, 0x74,
-	0x0a, 0x05, 0x4b, 0x76, 0x47, 0x65, 0x74, 0x12, 0x16, 0x2e, 0x66, 0x69, 0x6c, 0x65, 0x72, 0x5f,
+	0x12, 0x16, 0x2e, 0x66, 0x69, 0x6c, 0x65, 0x72, 0x5f, 0x70, 0x62, 0x2e, 0x4b, 0x76, 0x50, 0x75,
-	0x70, 0x62, 0x2e, 0x4b, 0x76, 0x47, 0x65, 0x74, 0x52, 0x65, 0x71, 0x75, 0x65, 0x73, 0x74, 0x1a,
+	0x74, 0x52, 0x65, 0x71, 0x75, 0x65, 0x73, 0x74, 0x1a, 0x17, 0x2e, 0x66, 0x69, 0x6c, 0x65, 0x72,
-	0x17, 0x2e, 0x66, 0x69, 0x6c, 0x65, 0x72, 0x5f, 0x70, 0x62, 0x2e, 0x4b, 0x76, 0x47, 0x65, 0x74,
+	0x5f, 0x70, 0x62, 0x2e, 0x4b, 0x76, 0x50, 0x75, 0x74, 0x52, 0x65, 0x73, 0x70, 0x6f, 0x6e, 0x73,
-	0x52, 0x65, 0x73, 0x70, 0x6f, 0x6e, 0x73, 0x65, 0x22, 0x00, 0x12, 0x3a, 0x0a, 0x05, 0x4b, 0x76,
+	0x65, 0x22, 0x00, 0x42, 0x4f, 0x0a, 0x10, 0x73, 0x65, 0x61, 0x77, 0x65, 0x65, 0x64, 0x66, 0x73,
-	0x50, 0x75, 0x74, 0x12, 0x16, 0x2e, 0x66, 0x69, 0x6c, 0x65, 0x72, 0x5f, 0x70, 0x62, 0x2e, 0x4b,
+	0x2e, 0x63, 0x6c, 0x69, 0x65, 0x6e, 0x74, 0x42, 0x0a, 0x46, 0x69, 0x6c, 0x65, 0x72, 0x50, 0x72,
-	0x76, 0x50, 0x75, 0x74, 0x52, 0x65, 0x71, 0x75, 0x65, 0x73, 0x74, 0x1a, 0x17, 0x2e, 0x66, 0x69,
+	0x6f, 0x74, 0x6f, 0x5a, 0x2f, 0x67, 0x69, 0x74, 0x68, 0x75, 0x62, 0x2e, 0x63, 0x6f, 0x6d, 0x2f,
-	0x6c, 0x65, 0x72, 0x5f, 0x70, 0x62, 0x2e, 0x4b, 0x76, 0x50, 0x75, 0x74, 0x52, 0x65, 0x73, 0x70,
+	0x63, 0x68, 0x72, 0x69, 0x73, 0x6c, 0x75, 0x73, 0x66, 0x2f, 0x73, 0x65, 0x61, 0x77, 0x65, 0x65,
-	0x6f, 0x6e, 0x73, 0x65, 0x22, 0x00, 0x42, 0x4f, 0x0a, 0x10, 0x73, 0x65, 0x61, 0x77, 0x65, 0x65,
+	0x64, 0x66, 0x73, 0x2f, 0x77, 0x65, 0x65, 0x64, 0x2f, 0x70, 0x62, 0x2f, 0x66, 0x69, 0x6c, 0x65,
-	0x64, 0x66, 0x73, 0x2e, 0x63, 0x6c, 0x69, 0x65, 0x6e, 0x74, 0x42, 0x0a, 0x46, 0x69, 0x6c, 0x65,
+	0x72, 0x5f, 0x70, 0x62, 0x62, 0x06, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x33,
-	0x72, 0x50, 0x72, 0x6f, 0x74, 0x6f, 0x5a, 0x2f, 0x67, 0x69, 0x74, 0x68, 0x75, 0x62, 0x2e, 0x63,
-	0x6f, 0x6d, 0x2f, 0x63, 0x68, 0x72, 0x69, 0x73, 0x6c, 0x75, 0x73, 0x66, 0x2f, 0x73, 0x65, 0x61,
-	0x77, 0x65, 0x65, 0x64, 0x66, 0x73, 0x2f, 0x77, 0x65, 0x65, 0x64, 0x2f, 0x70, 0x62, 0x2f, 0x66,
-	0x69, 0x6c, 0x65, 0x72, 0x5f, 0x70, 0x62, 0x62, 0x06, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x33,
 }
 
 var (

weed/pb/grpc_client_server.go

@@ -31,7 +31,8 @@ var (
 
 type versionedGrpcClient struct {
 	*grpc.ClientConn
-	version int
+	version  int
+	errCount int
 }
 
 func init() {
@@ -49,7 +50,7 @@ func NewGrpcServer(opts ...grpc.ServerOption) *grpc.Server {
 		}),
 		grpc.KeepaliveEnforcementPolicy(keepalive.EnforcementPolicy{
 			MinTime:             60 * time.Second, // min time a client should wait before sending a ping
-			PermitWithoutStream: false,
+			PermitWithoutStream: true,
 		}),
 		grpc.MaxRecvMsgSize(Max_Message_Size),
 		grpc.MaxSendMsgSize(Max_Message_Size),
@@ -75,7 +76,7 @@ func GrpcDial(ctx context.Context, address string, opts ...grpc.DialOption) (*gr
 		grpc.WithKeepaliveParams(keepalive.ClientParameters{
 			Time:                30 * time.Second, // client ping server if no activity for this long
 			Timeout:             20 * time.Second,
-			PermitWithoutStream: false,
+			PermitWithoutStream: true,
 		}))
 	for _, opt := range opts {
 		if opt != nil {
@@ -103,6 +104,7 @@ func getOrCreateConnection(address string, opts ...grpc.DialOption) (*versionedG
 	vgc := &versionedGrpcClient{
 		grpcConnection,
 		rand.Int(),
+		0,
 	}
 	grpcClients[address] = vgc
 
@@ -116,15 +118,20 @@ func WithCachedGrpcClient(fn func(*grpc.ClientConn) error, address string, opts
 		return fmt.Errorf("getOrCreateConnection %s: %v", address, err)
 	}
 	executionErr := fn(vgc.ClientConn)
-	if executionErr != nil && strings.Contains(executionErr.Error(), "transport") {
+	if executionErr != nil {
-		grpcClientsLock.Lock()
+		vgc.errCount++
-		if t, ok := grpcClients[address]; ok {
+		if vgc.errCount > 3 ||
-			if t.version == vgc.version {
+			strings.Contains(executionErr.Error(), "transport") ||
-				vgc.Close()
+			strings.Contains(executionErr.Error(), "connection closed") {
-				delete(grpcClients, address)
+			grpcClientsLock.Lock()
+			if t, ok := grpcClients[address]; ok {
+				if t.version == vgc.version {
+					vgc.Close()
+					delete(grpcClients, address)
+				}
 			}
+			grpcClientsLock.Unlock()
 		}
-		grpcClientsLock.Unlock()
 	}
 
 	return executionErr

weed/s3api/s3api_object_handlers.go

@@ -63,8 +63,8 @@ func (s3a *S3ApiServer) PutObjectHandler(w http.ResponseWriter, r *http.Request)
 	}
 
 	dataReader := r.Body
+	rAuthType := getRequestAuthType(r)
 	if s3a.iam.isEnabled() {
-		rAuthType := getRequestAuthType(r)
 		var s3ErrCode s3err.ErrorCode
 		switch rAuthType {
 		case authTypeStreamingSigned:
@@ -79,8 +79,7 @@ func (s3a *S3ApiServer) PutObjectHandler(w http.ResponseWriter, r *http.Request)
 			return
 		}
 	} else {
-		rAuthType := getRequestAuthType(r)
+		if authTypeStreamingSigned == rAuthType {
-		if authTypeAnonymous != rAuthType {
 			writeErrorResponse(w, s3err.ErrAuthNotSetup, r.URL)
 			return
 		}

weed/server/filer_grpc_server.go

@@ -259,14 +259,14 @@ func (fs *FilerServer) cleanupChunks(fullpath string, existingEntry *filer.Entry
 	garbage = append(garbage, coveredChunks...)
 
 	if newEntry.Attributes != nil {
-		so := fs.detectStorageOption(fullpath,
+		so, _ := fs.detectStorageOption(fullpath,
 			newEntry.Attributes.Collection,
 			newEntry.Attributes.Replication,
 			newEntry.Attributes.TtlSec,
 			newEntry.Attributes.DiskType,
 			"",
 			"",
-		)
+		) // ignore readonly error for capacity needed to manifestize
 		chunks, err = filer.MaybeManifestize(fs.saveAsChunk(so), chunks)
 		if err != nil {
 			// not good, but should be ok
@@ -307,7 +307,11 @@ func (fs *FilerServer) AppendToEntry(ctx context.Context, req *filer_pb.AppendTo
 	}
 
 	entry.Chunks = append(entry.Chunks, req.Chunks...)
-	so := fs.detectStorageOption(string(fullpath), entry.Collection, entry.Replication, entry.TtlSec, entry.DiskType, "", "")
+	so, err := fs.detectStorageOption(string(fullpath), entry.Collection, entry.Replication, entry.TtlSec, entry.DiskType, "", "")
+	if err != nil {
+		glog.Warningf("detectStorageOption: %v", err)
+		return &filer_pb.AppendToEntryResponse{}, err
+	}
 	entry.Chunks, err = filer.MaybeManifestize(fs.saveAsChunk(so), entry.Chunks)
 	if err != nil {
 		// not good, but should be ok
@@ -333,7 +337,11 @@ func (fs *FilerServer) DeleteEntry(ctx context.Context, req *filer_pb.DeleteEntr
 
 func (fs *FilerServer) AssignVolume(ctx context.Context, req *filer_pb.AssignVolumeRequest) (resp *filer_pb.AssignVolumeResponse, err error) {
 
-	so := fs.detectStorageOption(req.Path, req.Collection, req.Replication, req.TtlSec, req.DiskType, req.DataCenter, req.Rack)
+	so, err := fs.detectStorageOption(req.Path, req.Collection, req.Replication, req.TtlSec, req.DiskType, req.DataCenter, req.Rack)
+	if err != nil {
+		glog.V(3).Infof("AssignVolume: %v", err)
+		return &filer_pb.AssignVolumeResponse{Error: fmt.Sprintf("assign volume: %v", err)}, nil
+	}
 
 	assignRequest, altRequest := so.ToAssignRequests(int(req.Count))
 

weed/server/filer_server_handlers_write.go

@@ -2,6 +2,7 @@ package weed_server
 
 import (
 	"context"
+	"errors"
 	"net/http"
 	"os"
 	"strings"
@@ -19,6 +20,8 @@ import (
 var (
 	OS_UID = uint32(os.Getuid())
 	OS_GID = uint32(os.Getgid())
+
+	ErrReadOnly = errors.New("read only")
 )
 
 type FilerPostResult struct {
@@ -57,7 +60,7 @@ func (fs *FilerServer) PostHandler(w http.ResponseWriter, r *http.Request, conte
 	ctx := context.Background()
 
 	query := r.URL.Query()
-	so := fs.detectStorageOption0(r.RequestURI,
+	so, err := fs.detectStorageOption0(r.RequestURI,
 		query.Get("collection"),
 		query.Get("replication"),
 		query.Get("ttl"),
@@ -65,6 +68,15 @@ func (fs *FilerServer) PostHandler(w http.ResponseWriter, r *http.Request, conte
 		query.Get("dataCenter"),
 		query.Get("rack"),
 	)
+	if err != nil {
+		if err == ErrReadOnly {
+			w.WriteHeader(http.StatusInsufficientStorage)
+		} else {
+			glog.V(1).Infoln("post", r.RequestURI, ":", err.Error())
+			w.WriteHeader(http.StatusInternalServerError)
+		}
+		return
+	}
 
 	fs.autoChunk(ctx, w, r, contentLength, so)
 	util.CloseRequest(r)
@@ -105,7 +117,7 @@ func (fs *FilerServer) DeleteHandler(w http.ResponseWriter, r *http.Request) {
 	w.WriteHeader(http.StatusNoContent)
 }
 
-func (fs *FilerServer) detectStorageOption(requestURI, qCollection, qReplication string, ttlSeconds int32, diskType string, dataCenter, rack string) *operation.StorageOption {
+func (fs *FilerServer) detectStorageOption(requestURI, qCollection, qReplication string, ttlSeconds int32, diskType, dataCenter, rack string) (*operation.StorageOption, error) {
 	collection := util.Nvl(qCollection, fs.option.Collection)
 	replication := util.Nvl(qReplication, fs.option.DefaultReplication)
 
@@ -121,6 +133,10 @@ func (fs *FilerServer) detectStorageOption(requestURI, qCollection, qReplication
 
 	rule := fs.filer.FilerConf.MatchStorageRule(requestURI)
 
+	if rule.ReadOnly {
+		return nil, ErrReadOnly
+	}
+
 	if ttlSeconds == 0 {
 		ttl, err := needle.ReadTTL(rule.GetTtl())
 		if err != nil {
@@ -138,10 +154,10 @@ func (fs *FilerServer) detectStorageOption(requestURI, qCollection, qReplication
 		DiskType:          util.Nvl(diskType, rule.DiskType),
 		Fsync:             fsync || rule.Fsync,
 		VolumeGrowthCount: rule.VolumeGrowthCount,
-	}
+	}, nil
 }
 
-func (fs *FilerServer) detectStorageOption0(requestURI, qCollection, qReplication string, qTtl string, diskType string, dataCenter, rack string) *operation.StorageOption {
+func (fs *FilerServer) detectStorageOption0(requestURI, qCollection, qReplication string, qTtl string, diskType string, dataCenter, rack string) (*operation.StorageOption, error) {
 
 	ttl, err := needle.ReadTTL(qTtl)
 	if err != nil {

weed/server/filer_server_handlers_write_autochunk.go

@@ -218,7 +218,7 @@ func (fs *FilerServer) saveMetaData(ctx context.Context, r *http.Request, fileNa
 		entry.Extended = make(map[string][]byte)
 	}
 
-	SaveAmzMetaData(r, entry.Extended, false)
+	entry.Extended = SaveAmzMetaData(r, entry.Extended, false)
 
 	for k, v := range r.Header {
 		if len(v) > 0 && (strings.HasPrefix(k, needle.PairNamePrefix) || k == "Cache-Control" || k == "Expires") {

weed/shell/command_fs_configure.go

@@ -54,6 +54,7 @@ func (c *commandFsConfigure) Do(args []string, commandEnv *CommandEnv, writer io
 	ttl := fsConfigureCommand.String("ttl", "", "assign writes with this ttl")
 	diskType := fsConfigureCommand.String("disk", "", "[hdd|ssd|<tag>] hard drive or solid state drive or any tag")
 	fsync := fsConfigureCommand.Bool("fsync", false, "fsync for the writes")
+	isReadOnly := fsConfigureCommand.Bool("readOnly", false, "disable writes")
 	volumeGrowthCount := fsConfigureCommand.Int("volumeGrowthCount", 0, "the number of physical volumes to add if no writable volumes")
 	isDelete := fsConfigureCommand.Bool("delete", false, "delete the configuration by locationPrefix")
 	apply := fsConfigureCommand.Bool("apply", false, "update and apply filer configuration")
@@ -84,6 +85,7 @@ func (c *commandFsConfigure) Do(args []string, commandEnv *CommandEnv, writer io
 			Fsync:             *fsync,
 			DiskType:          *diskType,
 			VolumeGrowthCount: uint32(*volumeGrowthCount),
+			ReadOnly:          *isReadOnly,
 		}
 
 		// check collection

weed/shell/shell_liner.go

@@ -31,6 +31,7 @@ func RunShell(options ShellOptions) {
 	})
 
 	line.SetCtrlCAborts(true)
+	line.SetTabCompletionStyle(liner.TabPrints)
 
 	setCompletionHandler()
 	loadHistory()

weed/storage/volume.go

@@ -180,10 +180,16 @@ func (v *Volume) Close() {
 	v.dataFileAccessLock.Lock()
 	defer v.dataFileAccessLock.Unlock()
 	if v.nm != nil {
+		if err := v.nm.Sync(); err != nil {
+			glog.Warningf("Volume Close fail to sync volume idx %d", v.Id)
+		}
 		v.nm.Close()
 		v.nm = nil
 	}
 	if v.DataBackend != nil {
+		if err := v.DataBackend.Sync(); err != nil {
+			glog.Warningf("Volume Close fail to sync volume %d", v.Id)
+		}
 		_ = v.DataBackend.Close()
 		v.DataBackend = nil
 		stats.VolumeServerVolumeCounter.WithLabelValues(v.Collection, "volume").Dec()

weed/util/chunk_cache/on_disk_cache_layer.go

@@ -42,6 +42,10 @@ func NewOnDiskCacheLayer(dir, namePrefix string, diskSize int64, segmentCount in
 
 func (c *OnDiskCacheLayer) setChunk(needleId types.NeedleId, data []byte) {
 
+	if len(c.diskCaches) == 0 {
+		return
+	}
+
 	if c.diskCaches[0].fileSize+int64(len(data)) > c.diskCaches[0].sizeLimit {
 		t, resetErr := c.diskCaches[len(c.diskCaches)-1].Reset()
 		if resetErr != nil {

weed/util/constants.go

@@ -5,7 +5,7 @@ import (
 )
 
 var (
-	VERSION = fmt.Sprintf("%s %d.%02d", sizeLimit, 2, 49)
+	VERSION = fmt.Sprintf("%s %d.%02d", sizeLimit, 2, 50)
 	COMMIT  = ""
 )