organize a bit better for temp file directory

weed/filesys/dirty_pages_temp_file.go

@@ -6,7 +6,6 @@ import (
 	"github.com/chrislusf/seaweedfs/weed/pb/filer_pb"
 	"io"
 	"os"
-	"path/filepath"
 	"sync"
 	"time"
 )
@@ -24,14 +23,6 @@ type TempFileDirtyPages struct {
 	replication      string
 }
 
-var (
-	tmpDir = filepath.Join(os.TempDir(), "sw")
-)
-
-func init() {
-	os.Mkdir(tmpDir, 0755)
-}
-
 func newTempFileDirtyPages(file *File, writeOnly bool) *TempFileDirtyPages {
 
 	tempFile := &TempFileDirtyPages{
@@ -49,7 +40,7 @@ func (pages *TempFileDirtyPages) AddPage(offset int64, data []byte) {
 	defer pages.pageAddLock.Unlock()
 
 	if pages.tf == nil {
-		tf, err := os.CreateTemp(tmpDir, "")
+		tf, err := os.CreateTemp(pages.f.wfs.option.getTempFilePageDir(), "")
 		if err != nil {
 			glog.Errorf("create temp file: %v", err)
 			pages.lastErr = err

weed/filesys/wfs.go

@@ -10,6 +10,7 @@ import (
 	"math/rand"
 	"os"
 	"path"
+	"path/filepath"
 	"sync"
 	"time"
 
@@ -54,6 +55,9 @@ type Option struct {
 	VolumeServerAccess string // how to access volume servers
 	Cipher             bool   // whether encrypt data on volume server
 	UidGidMapper       *meta_cache.UidGidMapper
+
+	uniqueCacheDir         string
+	uniqueCacheTempPageDir string
 }
 
 var _ = fs.FS(&WFS{})
@@ -98,14 +102,12 @@ func NewSeaweedFileSystem(option *Option) *WFS {
 		signature: util.RandomInt32(),
 	}
 	wfs.option.filerIndex = rand.Intn(len(option.FilerAddresses))
-	cacheUniqueId := util.Md5String([]byte(option.MountDirectory + option.FilerGrpcAddresses[0] + option.FilerMountRootPath + util.Version()))[0:8]
-	cacheDir := path.Join(option.CacheDir, cacheUniqueId)
+	wfs.option.setupUniqueCacheDirectory()
 	if option.CacheSizeMB > 0 {
-		os.MkdirAll(cacheDir, os.FileMode(0777)&^option.Umask)
-		wfs.chunkCache = chunk_cache.NewTieredChunkCache(256, cacheDir, option.CacheSizeMB, 1024*1024)
+		wfs.chunkCache = chunk_cache.NewTieredChunkCache(256, option.getUniqueCacheDir(), option.CacheSizeMB, 1024*1024)
 	}
 
-	wfs.metaCache = meta_cache.NewMetaCache(path.Join(cacheDir, "meta"), util.FullPath(option.FilerMountRootPath), option.UidGidMapper, func(filePath util.FullPath) {
+	wfs.metaCache = meta_cache.NewMetaCache(path.Join(option.getUniqueCacheDir(), "meta"), util.FullPath(option.FilerMountRootPath), option.UidGidMapper, func(filePath util.FullPath) {
 
 		fsNode := NodeWithId(filePath.AsInode())
 		if err := wfs.Server.InvalidateNodeData(fsNode); err != nil {
@@ -271,6 +273,20 @@ func (wfs *WFS) getCurrentFiler() string {
 	return wfs.option.FilerAddresses[wfs.option.filerIndex]
 }
 
+func (option *Option) setupUniqueCacheDirectory() {
+	cacheUniqueId := util.Md5String([]byte(option.MountDirectory + option.FilerGrpcAddresses[0] + option.FilerMountRootPath + util.Version()))[0:8]
+	option.uniqueCacheDir = path.Join(option.CacheDir, cacheUniqueId)
+	option.uniqueCacheTempPageDir = filepath.Join(option.uniqueCacheDir, "sw")
+	os.MkdirAll(option.uniqueCacheTempPageDir, os.FileMode(0777)&^option.Umask)
+}
+
+func (option *Option) getTempFilePageDir() string {
+	return option.uniqueCacheTempPageDir
+}
+func (option *Option) getUniqueCacheDir() string {
+	return option.uniqueCacheDir
+}
+
 type NodeWithId uint64
 
 func (n NodeWithId) Id() uint64 {