formatting code by: goimports -w=true .

84 files changed, 205 insertions, 170 deletions

diff --git a/go/filer/client_operations.go b/go/filer/client_operations.go
index 0b006289f..b38368735 100644
--- a/go/filer/client_operations.go
+++ b/go/filer/client_operations.go
@@ -1,12 +1,12 @@
 package filer
 
-import ()
-
 import (
-	"github.com/chrislusf/weed-fs/go/util"
 	"encoding/json"
 	"errors"
 	"fmt"
+
+	"github.com/chrislusf/weed-fs/go/util"
+
 	"net/url"
 )
 
diff --git a/go/filer/directory.go b/go/filer/directory.go
index 956a2f504..66d1aeba5 100644
--- a/go/filer/directory.go
+++ b/go/filer/directory.go
@@ -1,7 +1,5 @@
 package filer
 
-import ()
-
 type DirectoryId int32
 
 type DirectoryEntry struct {
diff --git a/go/filer/directory_in_map.go b/go/filer/directory_in_map.go
index 1d88a78be..ee601066c 100644
--- a/go/filer/directory_in_map.go
+++ b/go/filer/directory_in_map.go
@@ -2,7 +2,6 @@ package filer
 
 import (
 	"bufio"
-	"github.com/chrislusf/weed-fs/go/util"
 	"fmt"
 	"io"
 	"os"
@@ -10,6 +9,8 @@ import (
 	"strconv"
 	"strings"
 	"sync"
+
+	"github.com/chrislusf/weed-fs/go/util"
 )
 
 var writeLock sync.Mutex //serialize changes to dir.log
diff --git a/go/filer/filer.go b/go/filer/filer.go
index de877fc1f..bf4a1cb19 100644
--- a/go/filer/filer.go
+++ b/go/filer/filer.go
@@ -1,7 +1,5 @@
 package filer
 
-import ()
-
 type FileId string //file id on weedfs
 
 type FileEntry struct {
diff --git a/go/filer/filer_embedded.go b/go/filer/filer_embedded.go
index 3d3dac941..0b9b4e668 100644
--- a/go/filer/filer_embedded.go
+++ b/go/filer/filer_embedded.go
@@ -1,11 +1,12 @@
 package filer
 
 import (
-	"github.com/chrislusf/weed-fs/go/operation"
 	"errors"
 	"fmt"
 	"path/filepath"
 	"strings"
+
+	"github.com/chrislusf/weed-fs/go/operation"
 )
 
 type FilerEmbedded struct {
diff --git a/go/filer/files_in_leveldb.go b/go/filer/files_in_leveldb.go
index 41fbc74bd..781bb0e5f 100644
--- a/go/filer/files_in_leveldb.go
+++ b/go/filer/files_in_leveldb.go
@@ -2,6 +2,7 @@ package filer
 
 import (
 	"bytes"
+
 	"github.com/chrislusf/weed-fs/go/glog"
 	"github.com/syndtr/goleveldb/leveldb"
 	"github.com/syndtr/goleveldb/leveldb/util"
diff --git a/go/glog/convenient_api.go b/go/glog/convenient_api.go
index 3c378083f..cb43d60e2 100644
--- a/go/glog/convenient_api.go
+++ b/go/glog/convenient_api.go
@@ -1,7 +1,5 @@
 package glog
 
-import ()
-
 /*
 Copying the original glog because it is missing several convenient methods.
 1. remove nano time in log format
diff --git a/go/images/orientation.go b/go/images/orientation.go
index 41ed3f0af..4bff89311 100644
--- a/go/images/orientation.go
+++ b/go/images/orientation.go
@@ -2,11 +2,12 @@ package images
 
 import (
 	"bytes"
-	"github.com/rwcarlsen/goexif/exif"
 	"image"
 	"image/draw"
 	"image/jpeg"
 	"log"
+
+	"github.com/rwcarlsen/goexif/exif"
 )
 
 //many code is copied from http://camlistore.org/pkg/images/images.go
diff --git a/go/images/resizing.go b/go/images/resizing.go
index 08a1e15d2..e9de5f7d7 100644
--- a/go/images/resizing.go
+++ b/go/images/resizing.go
@@ -2,11 +2,12 @@ package images
 
 import (
 	"bytes"
-	"github.com/disintegration/imaging"
 	"image"
 	"image/gif"
 	"image/jpeg"
 	"image/png"
+
+	"github.com/disintegration/imaging"
 )
 
 func Resized(ext string, data []byte, width, height int) (resized []byte, w int, h int) {
diff --git a/go/operation/assign_file_id.go b/go/operation/assign_file_id.go
index 4e72ad939..672bfa99c 100644
--- a/go/operation/assign_file_id.go
+++ b/go/operation/assign_file_id.go
@@ -1,12 +1,13 @@
 package operation
 
 import (
-	"github.com/chrislusf/weed-fs/go/glog"
-	"github.com/chrislusf/weed-fs/go/util"
 	"encoding/json"
 	"errors"
 	"net/url"
 	"strconv"
+
+	"github.com/chrislusf/weed-fs/go/glog"
+	"github.com/chrislusf/weed-fs/go/util"
 )
 
 type AssignResult struct {
diff --git a/go/operation/data_struts.go b/go/operation/data_struts.go
index 09fab05d1..4980f9913 100644
--- a/go/operation/data_struts.go
+++ b/go/operation/data_struts.go
@@ -1,7 +1,5 @@
 package operation
 
-import ()
-
 type JoinResult struct {
 	VolumeSizeLimit uint64 `json:"VolumeSizeLimit,omitempty"`
 	Error           string `json:"error,omitempty"`
diff --git a/go/operation/delete_content.go b/go/operation/delete_content.go
index 84391b634..416a852b3 100644
--- a/go/operation/delete_content.go
+++ b/go/operation/delete_content.go
@@ -1,12 +1,13 @@
 package operation
 
 import (
-	"github.com/chrislusf/weed-fs/go/util"
 	"encoding/json"
 	"errors"
 	"net/url"
 	"strings"
 	"sync"
+
+	"github.com/chrislusf/weed-fs/go/util"
 )
 
 type DeleteResult struct {
diff --git a/go/operation/list_masters.go b/go/operation/list_masters.go
index 7d46a9ebc..7ada94243 100644
--- a/go/operation/list_masters.go
+++ b/go/operation/list_masters.go
@@ -1,9 +1,10 @@
 package operation
 
 import (
+	"encoding/json"
+
 	"github.com/chrislusf/weed-fs/go/glog"
 	"github.com/chrislusf/weed-fs/go/util"
-	"encoding/json"
 )
 
 type ClusterStatusResult struct {
diff --git a/go/operation/lookup.go b/go/operation/lookup.go
index ebf153d27..e6b6658da 100644
--- a/go/operation/lookup.go
+++ b/go/operation/lookup.go
@@ -1,7 +1,6 @@
 package operation
 
 import (
-	"github.com/chrislusf/weed-fs/go/util"
 	"encoding/json"
 	"errors"
 	_ "fmt"
@@ -9,6 +8,8 @@ import (
 	"net/url"
 	"strings"
 	"time"
+
+	"github.com/chrislusf/weed-fs/go/util"
 )
 
 type Location struct {
diff --git a/go/operation/submit.go b/go/operation/submit.go
index 3e09c2edf..62db46617 100644
--- a/go/operation/submit.go
+++ b/go/operation/submit.go
@@ -2,13 +2,14 @@ package operation
 
 import (
 	"bytes"
-	"github.com/chrislusf/weed-fs/go/glog"
 	"io"
 	"mime"
 	"os"
 	"path"
 	"strconv"
 	"strings"
+
+	"github.com/chrislusf/weed-fs/go/glog"
 )
 
 type FilePart struct {
diff --git a/go/operation/system_message_test.go b/go/operation/system_message_test.go
index 2731d0b2f..b5624c258 100644
--- a/go/operation/system_message_test.go
+++ b/go/operation/system_message_test.go
@@ -1,10 +1,11 @@
 package operation
 
 import (
-	proto "code.google.com/p/goprotobuf/proto"
 	"encoding/json"
 	"log"
 	"testing"
+
+	proto "code.google.com/p/goprotobuf/proto"
 )
 
 func TestSerialDeserial(t *testing.T) {
diff --git a/go/operation/upload_content.go b/go/operation/upload_content.go
index 38737702d..480d76dca 100644
--- a/go/operation/upload_content.go
+++ b/go/operation/upload_content.go
@@ -2,7 +2,6 @@ package operation
 
 import (
 	"bytes"
-	"github.com/chrislusf/weed-fs/go/glog"
 	"encoding/json"
 	"errors"
 	"fmt"
@@ -14,6 +13,8 @@ import (
 	"net/textproto"
 	"path/filepath"
 	"strings"
+
+	"github.com/chrislusf/weed-fs/go/glog"
 )
 
 type UploadResult struct {
diff --git a/go/sequence/sequence.go b/go/sequence/sequence.go
index 5a1bceaaf..1aa167b6b 100644
--- a/go/sequence/sequence.go
+++ b/go/sequence/sequence.go
@@ -1,7 +1,5 @@
 package sequence
 
-import ()
-
 type Sequencer interface {
 	NextFileId(count int) (uint64, int)
 	SetMax(uint64)
diff --git a/go/stats/disk.go b/go/stats/disk.go
index d5275e571..46d8c465e 100644
--- a/go/stats/disk.go
+++ b/go/stats/disk.go
@@ -1,7 +1,5 @@
 package stats
 
-import ()
-
 type DiskStatus struct {
 	Dir  string
 	All  uint64
diff --git a/go/stats/disk_notsupported.go b/go/stats/disk_notsupported.go
index 37f9bc47d..e380d27ea 100644
--- a/go/stats/disk_notsupported.go
+++ b/go/stats/disk_notsupported.go
@@ -2,8 +2,6 @@
 
 package stats
 
-import ()
-
 func (disk *DiskStatus) fillInStatus() {
 	return
 }
diff --git a/go/stats/memory_notsupported.go b/go/stats/memory_notsupported.go
index 64c3d7c2f..ba8229364 100644
--- a/go/stats/memory_notsupported.go
+++ b/go/stats/memory_notsupported.go
@@ -2,8 +2,6 @@
 
 package stats
 
-import ()
-
 func (mem *MemStatus) fillInStatus() {
 	return
 }
diff --git a/go/storage/cdb_map.go b/go/storage/cdb_map.go
index 1869a563e..fbb59e9c0 100644
--- a/go/storage/cdb_map.go
+++ b/go/storage/cdb_map.go
@@ -1,13 +1,14 @@
 package storage
 
 import (
-	"github.com/chrislusf/weed-fs/go/util"
 	"encoding/json"
 	"errors"
 	"fmt"
-	"github.com/tgulacsi/go-cdb"
 	"os"
 	"path/filepath"
+
+	"github.com/chrislusf/weed-fs/go/util"
+	"github.com/tgulacsi/go-cdb"
 )
 
 // CDB-backed read-only needle map
diff --git a/go/storage/cdb_map_test.go b/go/storage/cdb_map_test.go
index cff7dfa61..ed690f44f 100644
--- a/go/storage/cdb_map_test.go
+++ b/go/storage/cdb_map_test.go
@@ -1,11 +1,12 @@
 package storage
 
 import (
-	"github.com/chrislusf/weed-fs/go/glog"
 	"math/rand"
 	"os"
 	"runtime"
 	"testing"
+
+	"github.com/chrislusf/weed-fs/go/glog"
 )
 
 var testIndexFilename string = "../../test/sample.idx"
diff --git a/go/storage/compact_map.go b/go/storage/compact_map.go
index 9cfc3e8f7..6ac18b012 100644
--- a/go/storage/compact_map.go
+++ b/go/storage/compact_map.go
@@ -1,7 +1,5 @@
 package storage
 
-import ()
-
 type NeedleValue struct {
 	Key    Key
 	Offset uint32 `comment:"Volume offset"` //since aligned to 8 bytes, range is 4G*8=32G
diff --git a/go/storage/compact_map_perf_test.go b/go/storage/compact_map_perf_test.go
index ef43de25b..f74684225 100644
--- a/go/storage/compact_map_perf_test.go
+++ b/go/storage/compact_map_perf_test.go
@@ -1,11 +1,12 @@
 package storage
 
 import (
-	"github.com/chrislusf/weed-fs/go/glog"
-	"github.com/chrislusf/weed-fs/go/util"
 	"log"
 	"os"
 	"testing"
+
+	"github.com/chrislusf/weed-fs/go/glog"
+	"github.com/chrislusf/weed-fs/go/util"
 )
 
 func TestMemoryUsage(t *testing.T) {
diff --git a/go/storage/compress.go b/go/storage/compress.go
index a353c9d3a..5efc9e1f1 100644
--- a/go/storage/compress.go
+++ b/go/storage/compress.go
@@ -2,11 +2,12 @@ package storage
 
 import (
 	"bytes"
-	"github.com/chrislusf/weed-fs/go/glog"
 	"compress/flate"
 	"compress/gzip"
 	"io/ioutil"
 	"strings"
+
+	"github.com/chrislusf/weed-fs/go/glog"
 )
 
 /*
diff --git a/go/storage/crc.go b/go/storage/crc.go
index 7aa400959..af25b9e53 100644
--- a/go/storage/crc.go
+++ b/go/storage/crc.go
@@ -1,9 +1,10 @@
 package storage
 
 import (
-	"github.com/chrislusf/weed-fs/go/util"
 	"fmt"
 	"hash/crc32"
+
+	"github.com/chrislusf/weed-fs/go/util"
 )
 
 var table = crc32.MakeTable(crc32.Castagnoli)
diff --git a/go/storage/file_id.go b/go/storage/file_id.go
index ec566826c..f6e36a98c 100644
--- a/go/storage/file_id.go
+++ b/go/storage/file_id.go
@@ -1,11 +1,12 @@
 package storage
 
 import (
-	"github.com/chrislusf/weed-fs/go/glog"
-	"github.com/chrislusf/weed-fs/go/util"
 	"encoding/hex"
 	"errors"
 	"strings"
+
+	"github.com/chrislusf/weed-fs/go/glog"
+	"github.com/chrislusf/weed-fs/go/util"
 )
 
 type FileId struct {
diff --git a/go/storage/needle.go b/go/storage/needle.go
index daede321b..aa3206920 100644
--- a/go/storage/needle.go
+++ b/go/storage/needle.go
@@ -1,9 +1,6 @@
 package storage
 
 import (
-	"github.com/chrislusf/weed-fs/go/glog"
-	"github.com/chrislusf/weed-fs/go/images"
-	"github.com/chrislusf/weed-fs/go/util"
 	"encoding/hex"
 	"errors"
 	"io/ioutil"
@@ -13,6 +10,10 @@ import (
 	"strconv"
 	"strings"
 	"time"
+
+	"github.com/chrislusf/weed-fs/go/glog"
+	"github.com/chrislusf/weed-fs/go/images"
+	"github.com/chrislusf/weed-fs/go/util"
 )
 
 const (
diff --git a/go/storage/needle_map.go b/go/storage/needle_map.go
index dca2e6c5d..504ca1552 100644
--- a/go/storage/needle_map.go
+++ b/go/storage/needle_map.go
@@ -1,11 +1,12 @@
 package storage
 
 import (
-	"github.com/chrislusf/weed-fs/go/glog"
-	"github.com/chrislusf/weed-fs/go/util"
 	"fmt"
 	"io"
 	"os"
+
+	"github.com/chrislusf/weed-fs/go/glog"
+	"github.com/chrislusf/weed-fs/go/util"
 )
 
 type NeedleMapper interface {
diff --git a/go/storage/needle_read_write.go b/go/storage/needle_read_write.go
index bf452ba37..663b5abbd 100644
--- a/go/storage/needle_read_write.go
+++ b/go/storage/needle_read_write.go
@@ -1,12 +1,13 @@
 package storage
 
 import (
-	"github.com/chrislusf/weed-fs/go/glog"
-	"github.com/chrislusf/weed-fs/go/util"
 	"errors"
 	"fmt"
 	"io"
 	"os"
+
+	"github.com/chrislusf/weed-fs/go/glog"
+	"github.com/chrislusf/weed-fs/go/util"
 )
 
 const (
diff --git a/go/storage/store.go b/go/storage/store.go
index e7a9dac94..80d8a30b8 100644
--- a/go/storage/store.go
+++ b/go/storage/store.go
@@ -1,10 +1,6 @@
 package storage
 
 import (
-	proto "code.google.com/p/goprotobuf/proto"
-	"github.com/chrislusf/weed-fs/go/glog"
-	"github.com/chrislusf/weed-fs/go/operation"
-	"github.com/chrislusf/weed-fs/go/util"
 	"encoding/json"
 	"errors"
 	"fmt"
@@ -12,6 +8,11 @@ import (
 	"math/rand"
 	"strconv"
 	"strings"
+
+	proto "code.google.com/p/goprotobuf/proto"
+	"github.com/chrislusf/weed-fs/go/glog"
+	"github.com/chrislusf/weed-fs/go/operation"
+	"github.com/chrislusf/weed-fs/go/util"
 )
 
 const (
diff --git a/go/storage/store_vacuum.go b/go/storage/store_vacuum.go
index 3527e4f59..209e3b4b3 100644
--- a/go/storage/store_vacuum.go
+++ b/go/storage/store_vacuum.go
@@ -1,9 +1,10 @@
 package storage
 
 import (
-	"github.com/chrislusf/weed-fs/go/glog"
 	"fmt"
 	"strconv"
+
+	"github.com/chrislusf/weed-fs/go/glog"
 )
 
 func (s *Store) CheckCompactVolume(volumeIdString string, garbageThresholdString string) (error, bool) {
diff --git a/go/storage/volume.go b/go/storage/volume.go
index 60ee1a0c4..5b0a83605 100644
--- a/go/storage/volume.go
+++ b/go/storage/volume.go
@@ -4,12 +4,13 @@ import (
 	"bytes"
 	"errors"
 	"fmt"
-	"github.com/chrislusf/weed-fs/go/glog"
 	"io"
 	"os"
 	"path"
 	"sync"
 	"time"
+
+	"github.com/chrislusf/weed-fs/go/glog"
 )
 
 type Volume struct {
diff --git a/go/storage/volume_super_block.go b/go/storage/volume_super_block.go
index a7e86b1c3..57e0deea9 100644
--- a/go/storage/volume_super_block.go
+++ b/go/storage/volume_super_block.go
@@ -1,9 +1,10 @@
 package storage
 
 import (
-	"github.com/chrislusf/weed-fs/go/glog"
 	"fmt"
 	"os"
+
+	"github.com/chrislusf/weed-fs/go/glog"
 )
 
 const (
diff --git a/go/storage/volume_vacuum.go b/go/storage/volume_vacuum.go
index b348434d2..7e026a61d 100644
--- a/go/storage/volume_vacuum.go
+++ b/go/storage/volume_vacuum.go
@@ -1,10 +1,11 @@
 package storage
 
 import (
-	"github.com/chrislusf/weed-fs/go/glog"
 	"fmt"
 	"os"
 	"time"
+
+	"github.com/chrislusf/weed-fs/go/glog"
 )
 
 func (v *Volume) garbageLevel() float64 {
diff --git a/go/storage/volume_version.go b/go/storage/volume_version.go
index 9702ae904..2e9f58aa2 100644
--- a/go/storage/volume_version.go
+++ b/go/storage/volume_version.go
@@ -1,7 +1,5 @@
 package storage
 
-import ()
-
 type Version uint8
 
 const (
diff --git a/go/tools/read_index.go b/go/tools/read_index.go
index b99c5b6b8..1104dc348 100644
--- a/go/tools/read_index.go
+++ b/go/tools/read_index.go
@@ -1,11 +1,12 @@
 package main
 
 import (
-	"github.com/chrislusf/weed-fs/go/storage"
 	"flag"
 	"fmt"
 	"log"
 	"os"
+
+	"github.com/chrislusf/weed-fs/go/storage"
 )
 
 var (
diff --git a/go/topology/allocate_volume.go b/go/topology/allocate_volume.go
index 6562e9ac5..a791b4c1c 100644
--- a/go/topology/allocate_volume.go
+++ b/go/topology/allocate_volume.go
@@ -1,11 +1,12 @@
 package topology
 
 import (
-	"github.com/chrislusf/weed-fs/go/storage"
-	"github.com/chrislusf/weed-fs/go/util"
 	"encoding/json"
 	"errors"
 	"net/url"
+
+	"github.com/chrislusf/weed-fs/go/storage"
+	"github.com/chrislusf/weed-fs/go/util"
 )
 
 type AllocateVolumeResult struct {
diff --git a/go/topology/data_center.go b/go/topology/data_center.go
index ebd07803b..bcf2dfd31 100644
--- a/go/topology/data_center.go
+++ b/go/topology/data_center.go
@@ -1,7 +1,5 @@
 package topology
 
-import ()
-
 type DataCenter struct {
 	NodeImpl
 }
diff --git a/go/topology/data_node.go b/go/topology/data_node.go
index c3b90470f..109bd037f 100644
--- a/go/topology/data_node.go
+++ b/go/topology/data_node.go
@@ -1,9 +1,10 @@
 package topology
 
 import (
+	"strconv"
+
 	"github.com/chrislusf/weed-fs/go/glog"
 	"github.com/chrislusf/weed-fs/go/storage"
-	"strconv"
 )
 
 type DataNode struct {
diff --git a/go/topology/node.go b/go/topology/node.go
index 54118802e..10955fa72 100644
--- a/go/topology/node.go
+++ b/go/topology/node.go
@@ -1,11 +1,12 @@
 package topology
 
 import (
-	"github.com/chrislusf/weed-fs/go/glog"
-	"github.com/chrislusf/weed-fs/go/storage"
 	"errors"
 	"math/rand"
 	"strings"
+
+	"github.com/chrislusf/weed-fs/go/glog"
+	"github.com/chrislusf/weed-fs/go/storage"
 )
 
 type NodeId string
diff --git a/go/topology/store_replicate.go b/go/topology/store_replicate.go
index 6ea019bd8..0c52f9d30 100644
--- a/go/topology/store_replicate.go
+++ b/go/topology/store_replicate.go
@@ -2,12 +2,13 @@ package topology
 
 import (
 	"bytes"
+	"net/http"
+	"strconv"
+
 	"github.com/chrislusf/weed-fs/go/glog"
 	"github.com/chrislusf/weed-fs/go/operation"
 	"github.com/chrislusf/weed-fs/go/storage"
 	"github.com/chrislusf/weed-fs/go/util"
-	"net/http"
-	"strconv"
 )
 
 func ReplicatedWrite(masterNode string, s *storage.Store, volumeId storage.VolumeId, needle *storage.Needle, r *http.Request) (size uint32, errorStatus string) {
diff --git a/go/topology/topology.go b/go/topology/topology.go
index cfce0c9a8..eb64d336c 100644
--- a/go/topology/topology.go
+++ b/go/topology/topology.go
@@ -1,14 +1,15 @@
 package topology
 
 import (
+	"errors"
+	"io/ioutil"
+	"math/rand"
+
 	"github.com/chrislusf/weed-fs/go/glog"
 	"github.com/chrislusf/weed-fs/go/operation"
 	"github.com/chrislusf/weed-fs/go/sequence"
 	"github.com/chrislusf/weed-fs/go/storage"
-	"errors"
 	"github.com/goraft/raft"
-	"io/ioutil"
-	"math/rand"
 )
 
 type Topology struct {
diff --git a/go/topology/topology_event_handling.go b/go/topology/topology_event_handling.go
index eb4491484..7e36568b6 100644
--- a/go/topology/topology_event_handling.go
+++ b/go/topology/topology_event_handling.go
@@ -1,10 +1,11 @@
 package topology
 
 import (
-	"github.com/chrislusf/weed-fs/go/glog"
-	"github.com/chrislusf/weed-fs/go/storage"
 	"math/rand"
 	"time"
+
+	"github.com/chrislusf/weed-fs/go/glog"
+	"github.com/chrislusf/weed-fs/go/storage"
 )
 
 func (t *Topology) StartRefreshWritableVolumes(garbageThreshold string) {
diff --git a/go/topology/topology_map.go b/go/topology/topology_map.go
index d6400c988..af95c6536 100644
--- a/go/topology/topology_map.go
+++ b/go/topology/topology_map.go
@@ -1,7 +1,5 @@
 package topology
 
-import ()
-
 func (t *Topology) ToMap() interface{} {
 	m := make(map[string]interface{})
 	m["Max"] = t.GetMaxVolumeCount()
diff --git a/go/topology/topology_vacuum.go b/go/topology/topology_vacuum.go
index 72846f20b..97a76026d 100644
--- a/go/topology/topology_vacuum.go
+++ b/go/topology/topology_vacuum.go
@@ -1,13 +1,14 @@
 package topology
 
 import (
-	"github.com/chrislusf/weed-fs/go/glog"
-	"github.com/chrislusf/weed-fs/go/storage"
-	"github.com/chrislusf/weed-fs/go/util"
 	"encoding/json"
 	"errors"
 	"net/url"
 	"time"
+
+	"github.com/chrislusf/weed-fs/go/glog"
+	"github.com/chrislusf/weed-fs/go/storage"
+	"github.com/chrislusf/weed-fs/go/util"
 )
 
 func batchVacuumVolumeCheck(vl *VolumeLayout, vid storage.VolumeId, locationlist *VolumeLocationList, garbageThreshold string) bool {
diff --git a/go/topology/volume_growth.go b/go/topology/volume_growth.go
index 2859d3992..b1f241990 100644
--- a/go/topology/volume_growth.go
+++ b/go/topology/volume_growth.go
@@ -1,11 +1,12 @@
 package topology
 
 import (
-	"github.com/chrislusf/weed-fs/go/glog"
-	"github.com/chrislusf/weed-fs/go/storage"
 	"fmt"
 	"math/rand"
 	"sync"
+
+	"github.com/chrislusf/weed-fs/go/glog"
+	"github.com/chrislusf/weed-fs/go/storage"
 )
 
 /*
diff --git a/go/topology/volume_growth_test.go b/go/topology/volume_growth_test.go
index 5581c87ce..267b36042 100644
--- a/go/topology/volume_growth_test.go
+++ b/go/topology/volume_growth_test.go
@@ -1,11 +1,12 @@
 package topology
 
 import (
-	"github.com/chrislusf/weed-fs/go/sequence"
-	"github.com/chrislusf/weed-fs/go/storage"
 	"encoding/json"
 	"fmt"
 	"testing"
+
+	"github.com/chrislusf/weed-fs/go/sequence"
+	"github.com/chrislusf/weed-fs/go/storage"
 )
 
 var topologyLayout = `
diff --git a/go/topology/volume_layout.go b/go/topology/volume_layout.go
index 7bb0cf7e3..de72bf895 100644
--- a/go/topology/volume_layout.go
+++ b/go/topology/volume_layout.go
@@ -1,11 +1,12 @@
 package topology
 
 import (
-	"github.com/chrislusf/weed-fs/go/glog"
-	"github.com/chrislusf/weed-fs/go/storage"
 	"errors"
 	"math/rand"
 	"sync"
+
+	"github.com/chrislusf/weed-fs/go/glog"
+	"github.com/chrislusf/weed-fs/go/storage"
 )
 
 // mapping from volume to its locations, inverted from server to volume
diff --git a/go/topology/volume_location_list.go b/go/topology/volume_location_list.go
index 176f469b9..011614013 100644
--- a/go/topology/volume_location_list.go
+++ b/go/topology/volume_location_list.go
@@ -1,7 +1,5 @@
 package topology
 
-import ()
-
 type VolumeLocationList struct {
 	list []*DataNode
 }
diff --git a/go/util/config.go b/go/util/config.go
index 050fd0e64..4cf1d7c64 100644
--- a/go/util/config.go
+++ b/go/util/config.go
@@ -10,9 +10,10 @@ package util
 
 import (
 	"bytes"
-	"github.com/chrislusf/weed-fs/go/glog"
 	"encoding/json"
 	"os"
+
+	"github.com/chrislusf/weed-fs/go/glog"
 )
 
 type Config struct {
diff --git a/go/util/constants.go b/go/util/constants.go
index db1ca38e5..c407533a8 100644
--- a/go/util/constants.go
+++ b/go/util/constants.go
@@ -1,7 +1,5 @@
 package util
 
-import ()
-
 const (
 	VERSION = "0.64"
 )
diff --git a/go/util/file_util.go b/go/util/file_util.go
index 412d98458..30e24f001 100644
--- a/go/util/file_util.go
+++ b/go/util/file_util.go
@@ -2,9 +2,10 @@ package util
 
 import (
 	"bufio"
-	"github.com/chrislusf/weed-fs/go/glog"
 	"errors"
 	"os"
+
+	"github.com/chrislusf/weed-fs/go/glog"
 )
 
 func TestFolderWritable(folder string) (err error) {
diff --git a/go/util/net_timeout.go b/go/util/net_timeout.go
index eb80822b5..f274e4802 100644
--- a/go/util/net_timeout.go
+++ b/go/util/net_timeout.go
@@ -1,9 +1,10 @@
 package util
 
 import (
-	"github.com/chrislusf/weed-fs/go/stats"
 	"net"
 	"time"
+
+	"github.com/chrislusf/weed-fs/go/stats"
 )
 
 // Listener wraps a net.Listener, and gives a place to store the timeout
diff --git a/go/weed/benchmark.go b/go/weed/benchmark.go
index fec8472e5..8339913cd 100644
--- a/go/weed/benchmark.go
+++ b/go/weed/benchmark.go
@@ -2,9 +2,6 @@ package main
 
 import (
 	"bufio"
-	"github.com/chrislusf/weed-fs/go/glog"
-	"github.com/chrislusf/weed-fs/go/operation"
-	"github.com/chrislusf/weed-fs/go/util"
 	"fmt"
 	"io"
 	"math"
@@ -16,6 +13,10 @@ import (
 	"strings"
 	"sync"
 	"time"
+
+	"github.com/chrislusf/weed-fs/go/glog"
+	"github.com/chrislusf/weed-fs/go/operation"
+	"github.com/chrislusf/weed-fs/go/util"
 )
 
 type BenchmarkOptions struct {
diff --git a/go/weed/download.go b/go/weed/download.go
index c30d17915..c782654f5 100644
--- a/go/weed/download.go
+++ b/go/weed/download.go
@@ -1,14 +1,15 @@
 package main
 
 import (
-	"github.com/chrislusf/weed-fs/go/operation"
-	"github.com/chrislusf/weed-fs/go/util"
 	"fmt"
 	"io"
 	"io/ioutil"
 	"os"
 	"path"
 	"strings"
+
+	"github.com/chrislusf/weed-fs/go/operation"
+	"github.com/chrislusf/weed-fs/go/util"
 )
 
 var (
diff --git a/go/weed/export.go b/go/weed/export.go
index 9f33d852f..c9cc0e3fe 100644
--- a/go/weed/export.go
+++ b/go/weed/export.go
@@ -4,14 +4,15 @@ import (
 	"archive/tar"
 	"bytes"
 	"fmt"
-	"github.com/chrislusf/weed-fs/go/glog"
-	"github.com/chrislusf/weed-fs/go/storage"
 	"os"
 	"path"
 	"strconv"
 	"strings"
 	"text/template"
 	"time"
+
+	"github.com/chrislusf/weed-fs/go/glog"
+	"github.com/chrislusf/weed-fs/go/storage"
 )
 
 func init() {
diff --git a/go/weed/filer.go b/go/weed/filer.go
index 7dbecb4d0..b3fc9c878 100644
--- a/go/weed/filer.go
+++ b/go/weed/filer.go
@@ -1,13 +1,14 @@
 package main
 
 import (
-	"github.com/chrislusf/weed-fs/go/glog"
-	"github.com/chrislusf/weed-fs/go/util"
-	"github.com/chrislusf/weed-fs/go/weed/weed_server"
 	"net/http"
 	"os"
 	"strconv"
 	"time"
+
+	"github.com/chrislusf/weed-fs/go/glog"
+	"github.com/chrislusf/weed-fs/go/util"
+	"github.com/chrislusf/weed-fs/go/weed/weed_server"
 )
 
 var (
diff --git a/go/weed/fix.go b/go/weed/fix.go
index ad573875a..9c8026448 100644
--- a/go/weed/fix.go
+++ b/go/weed/fix.go
@@ -1,11 +1,12 @@
 package main
 
 import (
-	"github.com/chrislusf/weed-fs/go/glog"
-	"github.com/chrislusf/weed-fs/go/storage"
 	"os"
 	"path"
 	"strconv"
+
+	"github.com/chrislusf/weed-fs/go/glog"
+	"github.com/chrislusf/weed-fs/go/storage"
 )
 
 func init() {
diff --git a/go/weed/master.go b/go/weed/master.go
index f96ff4c08..f88964b6d 100644
--- a/go/weed/master.go
+++ b/go/weed/master.go
@@ -1,16 +1,17 @@
 package main
 
 import (
-	"github.com/chrislusf/weed-fs/go/glog"
-	"github.com/chrislusf/weed-fs/go/util"
-	"github.com/chrislusf/weed-fs/go/weed/weed_server"
-	"github.com/gorilla/mux"
 	"net/http"
 	"os"
 	"runtime"
 	"strconv"
 	"strings"
 	"time"
+
+	"github.com/chrislusf/weed-fs/go/glog"
+	"github.com/chrislusf/weed-fs/go/util"
+	"github.com/chrislusf/weed-fs/go/weed/weed_server"
+	"github.com/gorilla/mux"
 )
 
 func init() {
diff --git a/go/weed/mount.go b/go/weed/mount.go
index 0290e0f53..66e645387 100644
--- a/go/weed/mount.go
+++ b/go/weed/mount.go
@@ -1,7 +1,5 @@
 package main
 
-import ()
-
 type MountOptions struct {
 	filer *string
 	dir   *string
diff --git a/go/weed/mount_std.go b/go/weed/mount_std.go
index e5fc0986c..808c6c563 100644
--- a/go/weed/mount_std.go
+++ b/go/weed/mount_std.go
@@ -3,15 +3,16 @@
 package main
 
 import (
+	"fmt"
+	"os"
+	"runtime"
+
 	"bazil.org/fuse"
 	"bazil.org/fuse/fs"
 	"github.com/chrislusf/weed-fs/go/filer"
 	"github.com/chrislusf/weed-fs/go/glog"
 	"github.com/chrislusf/weed-fs/go/storage"
 	"github.com/chrislusf/weed-fs/go/util"
-	"fmt"
-	"os"
-	"runtime"
 )
 
 func runMount(cmd *Command, args []string) bool {
diff --git a/go/weed/server.go b/go/weed/server.go
index 1d854d641..6042c22e7 100644
--- a/go/weed/server.go
+++ b/go/weed/server.go
@@ -1,10 +1,6 @@
 package main
 
 import (
-	"github.com/chrislusf/weed-fs/go/glog"
-	"github.com/chrislusf/weed-fs/go/util"
-	"github.com/chrislusf/weed-fs/go/weed/weed_server"
-	"github.com/gorilla/mux"
 	"net/http"
 	"os"
 	"runtime"
@@ -13,6 +9,11 @@ import (
 	"strings"
 	"sync"
 	"time"
+
+	"github.com/chrislusf/weed-fs/go/glog"
+	"github.com/chrislusf/weed-fs/go/util"
+	"github.com/chrislusf/weed-fs/go/weed/weed_server"
+	"github.com/gorilla/mux"
 )
 
 type ServerOptions struct {
diff --git a/go/weed/shell.go b/go/weed/shell.go
index c8043e0dd..f2c4990ea 100644
--- a/go/weed/shell.go
+++ b/go/weed/shell.go
@@ -2,9 +2,10 @@ package main
 
 import (
 	"bufio"
-	"github.com/chrislusf/weed-fs/go/glog"
 	"fmt"
 	"os"
+
+	"github.com/chrislusf/weed-fs/go/glog"
 )
 
 func init() {
diff --git a/go/weed/signal_handling_notsupported.go b/go/weed/signal_handling_notsupported.go
index ad4f37b0c..343cf7de2 100644
--- a/go/weed/signal_handling_notsupported.go
+++ b/go/weed/signal_handling_notsupported.go
@@ -2,7 +2,5 @@
 
 package main
 
-import ()
-
 func OnInterrupt(fn func()) {
 }
diff --git a/go/weed/upload.go b/go/weed/upload.go
index 4eae4d274..2d67c0bd9 100644
--- a/go/weed/upload.go
+++ b/go/weed/upload.go
@@ -1,11 +1,12 @@
 package main
 
 import (
-	"github.com/chrislusf/weed-fs/go/operation"
 	"encoding/json"
 	"fmt"
 	"os"
 	"path/filepath"
+
+	"github.com/chrislusf/weed-fs/go/operation"
 )
 
 var (
diff --git a/go/weed/version.go b/go/weed/version.go
index 63441509e..8d3a6fed7 100644
--- a/go/weed/version.go
+++ b/go/weed/version.go
@@ -1,9 +1,10 @@
 package main
 
 import (
-	"github.com/chrislusf/weed-fs/go/util"
 	"fmt"
 	"runtime"
+
+	"github.com/chrislusf/weed-fs/go/util"
 )
 
 var cmdVersion = &Command{
diff --git a/go/weed/volume.go b/go/weed/volume.go
index ce05fcdf3..212cb4b33 100644
--- a/go/weed/volume.go
+++ b/go/weed/volume.go
@@ -1,15 +1,16 @@
 package main
 
 import (
-	"github.com/chrislusf/weed-fs/go/glog"
-	"github.com/chrislusf/weed-fs/go/util"
-	"github.com/chrislusf/weed-fs/go/weed/weed_server"
 	"net/http"
 	"os"
 	"runtime"
 	"strconv"
 	"strings"
 	"time"
+
+	"github.com/chrislusf/weed-fs/go/glog"
+	"github.com/chrislusf/weed-fs/go/util"
+	"github.com/chrislusf/weed-fs/go/weed/weed_server"
 )
 
 func init() {
diff --git a/go/weed/volume_test.go b/go/weed/volume_test.go
index 764362a2b..ef00a8c7c 100644
--- a/go/weed/volume_test.go
+++ b/go/weed/volume_test.go
@@ -1,10 +1,11 @@
 package main
 
 import (
-	"github.com/chrislusf/weed-fs/go/glog"
 	"net/http"
 	"testing"
 	"time"
+
+	"github.com/chrislusf/weed-fs/go/glog"
 )
 
 func TestXYZ(t *testing.T) {
diff --git a/go/weed/weed.go b/go/weed/weed.go
index c1f5a72de..c304b7f35 100644
--- a/go/weed/weed.go
+++ b/go/weed/weed.go
@@ -1,7 +1,6 @@
 package main
 
 import (
-	"github.com/chrislusf/weed-fs/go/glog"
 	"flag"
 	"fmt"
 	"io"
@@ -13,6 +12,8 @@ import (
 	"time"
 	"unicode"
 	"unicode/utf8"
+
+	"github.com/chrislusf/weed-fs/go/glog"
 )
 
 var IsDebug *bool
diff --git a/go/weed/weed_server/common.go b/go/weed/weed_server/common.go
index 816107dc5..39b0830e3 100644
--- a/go/weed/weed_server/common.go
+++ b/go/weed/weed_server/common.go
@@ -2,11 +2,6 @@ package weed_server
 
 import (
 	"bytes"
-	"github.com/chrislusf/weed-fs/go/glog"
-	"github.com/chrislusf/weed-fs/go/operation"
-	"github.com/chrislusf/weed-fs/go/stats"
-	"github.com/chrislusf/weed-fs/go/storage"
-	"github.com/chrislusf/weed-fs/go/util"
 	"encoding/json"
 	"fmt"
 	"net"
@@ -14,6 +9,12 @@ import (
 	"path/filepath"
 	"strconv"
 	"strings"
+
+	"github.com/chrislusf/weed-fs/go/glog"
+	"github.com/chrislusf/weed-fs/go/operation"
+	"github.com/chrislusf/weed-fs/go/stats"
+	"github.com/chrislusf/weed-fs/go/storage"
+	"github.com/chrislusf/weed-fs/go/util"
 )
 
 var serverStats *stats.ServerStats
diff --git a/go/weed/weed_server/filer_server.go b/go/weed/weed_server/filer_server.go
index 5ff0ed986..9d6f7c71b 100644
--- a/go/weed/weed_server/filer_server.go
+++ b/go/weed/weed_server/filer_server.go
@@ -1,10 +1,11 @@
 package weed_server
 
 import (
-	"github.com/chrislusf/weed-fs/go/filer"
-	"github.com/chrislusf/weed-fs/go/glog"
 	"net/http"
 	"strconv"
+
+	"github.com/chrislusf/weed-fs/go/filer"
+	"github.com/chrislusf/weed-fs/go/glog"
 )
 
 type FilerServer struct {
diff --git a/go/weed/weed_server/filer_server_handlers.go b/go/weed/weed_server/filer_server_handlers.go
index e36e7c310..781d7c0fc 100644
--- a/go/weed/weed_server/filer_server_handlers.go
+++ b/go/weed/weed_server/filer_server_handlers.go
@@ -1,12 +1,8 @@
 package weed_server
 
 import (
-	"github.com/chrislusf/weed-fs/go/glog"
-	"github.com/chrislusf/weed-fs/go/operation"
-	"github.com/chrislusf/weed-fs/go/util"
 	"encoding/json"
 	"errors"
-	"github.com/syndtr/goleveldb/leveldb"
 	"io"
 	"io/ioutil"
 	"math/rand"
@@ -14,6 +10,11 @@ import (
 	"net/url"
 	"strconv"
 	"strings"
+
+	"github.com/chrislusf/weed-fs/go/glog"
+	"github.com/chrislusf/weed-fs/go/operation"
+	"github.com/chrislusf/weed-fs/go/util"
+	"github.com/syndtr/goleveldb/leveldb"
 )
 
 func (fs *FilerServer) filerHandler(w http.ResponseWriter, r *http.Request) {
diff --git a/go/weed/weed_server/filer_server_handlers_admin.go b/go/weed/weed_server/filer_server_handlers_admin.go
index ff52dff24..5ba12e0b8 100644
--- a/go/weed/weed_server/filer_server_handlers_admin.go
+++ b/go/weed/weed_server/filer_server_handlers_admin.go
@@ -1,8 +1,9 @@
 package weed_server
 
 import (
-	"github.com/chrislusf/weed-fs/go/glog"
 	"net/http"
+
+	"github.com/chrislusf/weed-fs/go/glog"
 )
 
 /*
diff --git a/go/weed/weed_server/master_server.go b/go/weed/weed_server/master_server.go
index 401f6cfdb..d000cb610 100644
--- a/go/weed/weed_server/master_server.go
+++ b/go/weed/weed_server/master_server.go
@@ -1,16 +1,17 @@
 package weed_server
 
 import (
+	"net/http"
+	"net/http/httputil"
+	"net/url"
+	"sync"
+
 	"github.com/chrislusf/weed-fs/go/glog"
 	"github.com/chrislusf/weed-fs/go/sequence"
 	"github.com/chrislusf/weed-fs/go/topology"
 	"github.com/chrislusf/weed-fs/go/util"
 	"github.com/goraft/raft"
 	"github.com/gorilla/mux"
-	"net/http"
-	"net/http/httputil"
-	"net/url"
-	"sync"
 )
 
 type MasterServer struct {
diff --git a/go/weed/weed_server/master_server_handlers.go b/go/weed/weed_server/master_server_handlers.go
index d7f1f4ce3..7a7a3b70d 100644
--- a/go/weed/weed_server/master_server_handlers.go
+++ b/go/weed/weed_server/master_server_handlers.go
@@ -1,12 +1,13 @@
 package weed_server
 
 import (
-	"github.com/chrislusf/weed-fs/go/operation"
-	"github.com/chrislusf/weed-fs/go/stats"
-	"github.com/chrislusf/weed-fs/go/storage"
 	"net/http"
 	"strconv"
 	"strings"
+
+	"github.com/chrislusf/weed-fs/go/operation"
+	"github.com/chrislusf/weed-fs/go/stats"
+	"github.com/chrislusf/weed-fs/go/storage"
 )
 
 func (ms *MasterServer) lookupVolumeId(vids []string, collection string) (volumeLocations map[string]operation.LookupResult) {
diff --git a/go/weed/weed_server/master_server_handlers_admin.go b/go/weed/weed_server/master_server_handlers_admin.go
index 1a2c6b8e0..d7124e567 100644
--- a/go/weed/weed_server/master_server_handlers_admin.go
+++ b/go/weed/weed_server/master_server_handlers_admin.go
@@ -1,18 +1,19 @@
 package weed_server
 
 import (
-	proto "code.google.com/p/goprotobuf/proto"
-	"github.com/chrislusf/weed-fs/go/glog"
-	"github.com/chrislusf/weed-fs/go/operation"
-	"github.com/chrislusf/weed-fs/go/storage"
-	"github.com/chrislusf/weed-fs/go/topology"
-	"github.com/chrislusf/weed-fs/go/util"
 	"encoding/json"
 	"errors"
 	"io/ioutil"
 	"net/http"
 	"strconv"
 	"strings"
+
+	proto "code.google.com/p/goprotobuf/proto"
+	"github.com/chrislusf/weed-fs/go/glog"
+	"github.com/chrislusf/weed-fs/go/operation"
+	"github.com/chrislusf/weed-fs/go/storage"
+	"github.com/chrislusf/weed-fs/go/topology"
+	"github.com/chrislusf/weed-fs/go/util"
 )
 
 func (ms *MasterServer) collectionDeleteHandler(w http.ResponseWriter, r *http.Request) {
diff --git a/go/weed/weed_server/raft_server.go b/go/weed/weed_server/raft_server.go
index e41867076..0b049ce27 100644
--- a/go/weed/weed_server/raft_server.go
+++ b/go/weed/weed_server/raft_server.go
@@ -2,19 +2,20 @@ package weed_server
 
 import (
 	"bytes"
-	"github.com/chrislusf/weed-fs/go/glog"
-	"github.com/chrislusf/weed-fs/go/topology"
 	"encoding/json"
 	"errors"
 	"fmt"
-	"github.com/goraft/raft"
-	"github.com/gorilla/mux"
 	"io/ioutil"
 	"math/rand"
 	"net/http"
 	"net/url"
 	"strings"
 	"time"
+
+	"github.com/chrislusf/weed-fs/go/glog"
+	"github.com/chrislusf/weed-fs/go/topology"
+	"github.com/goraft/raft"
+	"github.com/gorilla/mux"
 )
 
 type RaftServer struct {
diff --git a/go/weed/weed_server/raft_server_handlers.go b/go/weed/weed_server/raft_server_handlers.go
index 4d51c0767..b466d9afa 100644
--- a/go/weed/weed_server/raft_server_handlers.go
+++ b/go/weed/weed_server/raft_server_handlers.go
@@ -1,13 +1,14 @@
 package weed_server
 
 import (
-	"github.com/chrislusf/weed-fs/go/glog"
-	"github.com/chrislusf/weed-fs/go/operation"
 	"encoding/json"
-	"github.com/goraft/raft"
 	"io/ioutil"
 	"net/http"
 	"strings"
+
+	"github.com/chrislusf/weed-fs/go/glog"
+	"github.com/chrislusf/weed-fs/go/operation"
+	"github.com/goraft/raft"
 )
 
 // Handles incoming RAFT joins.
diff --git a/go/weed/weed_server/volume_server.go b/go/weed/weed_server/volume_server.go
index 2a9085f3b..0a65fd2f6 100644
--- a/go/weed/weed_server/volume_server.go
+++ b/go/weed/weed_server/volume_server.go
@@ -1,12 +1,13 @@
 package weed_server
 
 import (
-	"github.com/chrislusf/weed-fs/go/glog"
-	"github.com/chrislusf/weed-fs/go/storage"
 	"math/rand"
 	"net/http"
 	"strconv"
 	"time"
+
+	"github.com/chrislusf/weed-fs/go/glog"
+	"github.com/chrislusf/weed-fs/go/storage"
 )
 
 type VolumeServer struct {
diff --git a/go/weed/weed_server/volume_server_handlers.go b/go/weed/weed_server/volume_server_handlers.go
index ce14f6a87..83f614941 100644
--- a/go/weed/weed_server/volume_server_handlers.go
+++ b/go/weed/weed_server/volume_server_handlers.go
@@ -1,12 +1,6 @@
 package weed_server
 
 import (
-	"github.com/chrislusf/weed-fs/go/glog"
-	"github.com/chrislusf/weed-fs/go/images"
-	"github.com/chrislusf/weed-fs/go/operation"
-	"github.com/chrislusf/weed-fs/go/stats"
-	"github.com/chrislusf/weed-fs/go/storage"
-	"github.com/chrislusf/weed-fs/go/topology"
 	"io"
 	"mime"
 	"mime/multipart"
@@ -14,6 +8,13 @@ import (
 	"strconv"
 	"strings"
 	"time"
+
+	"github.com/chrislusf/weed-fs/go/glog"
+	"github.com/chrislusf/weed-fs/go/images"
+	"github.com/chrislusf/weed-fs/go/operation"
+	"github.com/chrislusf/weed-fs/go/stats"
+	"github.com/chrislusf/weed-fs/go/storage"
+	"github.com/chrislusf/weed-fs/go/topology"
 )
 
 var fileNameEscaper = strings.NewReplacer("\\", "\\\\", "\"", "\\\"")
diff --git a/go/weed/weed_server/volume_server_handlers_admin.go b/go/weed/weed_server/volume_server_handlers_admin.go
index 1118c8017..caf4c3be8 100644
--- a/go/weed/weed_server/volume_server_handlers_admin.go
+++ b/go/weed/weed_server/volume_server_handlers_admin.go
@@ -1,11 +1,12 @@
 package weed_server
 
 import (
+	"net/http"
+	"path/filepath"
+
 	"github.com/chrislusf/weed-fs/go/glog"
 	"github.com/chrislusf/weed-fs/go/stats"
 	"github.com/chrislusf/weed-fs/go/util"
-	"net/http"
-	"path/filepath"
 )
 
 func (vs *VolumeServer) statusHandler(w http.ResponseWriter, r *http.Request) {
diff --git a/go/weed/weed_server/volume_server_handlers_vacuum.go b/go/weed/weed_server/volume_server_handlers_vacuum.go
index b0600d799..f115e3b8b 100644
--- a/go/weed/weed_server/volume_server_handlers_vacuum.go
+++ b/go/weed/weed_server/volume_server_handlers_vacuum.go
@@ -1,8 +1,9 @@
 package weed_server
 
 import (
-	"github.com/chrislusf/weed-fs/go/glog"
 	"net/http"
+
+	"github.com/chrislusf/weed-fs/go/glog"
 )
 
 func (vs *VolumeServer) vacuumVolumeCheckHandler(w http.ResponseWriter, r *http.Request) {