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add fastdfs migrate
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s_jqzhang
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8070314f11
16
README.md
16
README.md
@ -208,15 +208,13 @@ go-fastdfs的文件定位与其它分布式系统不同，它的寻址是直接
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- 已经使用fastdfs存储的文件可以迁移到go fastdfs下么？
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```
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答案是可以的，你担心的问题是路径改变,go fastdfs为你考虑了这一点
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curl -F file=@data/00/00/_78HAFwyvN2AK6ChAAHg8gw80FQ213.jpg -F path=M00/00/00/ http://127.0.0.1:8080/upload
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同理可以用一行命令迁移所有文件
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cd fastdfs/data && find -type f |xargs -n 1 -I {} curl -F file=@data/{} -F path=M00/00/00/ http://127.0.0.1:8080/
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以上命令可以过迁粗糙
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可以写一些简单脚本进行迁移
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步骤：
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一、下载最新版的go-fastdfs
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二、将原来的fastdfs目录复制到go-fastdfs的 files目录下
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三、将配置enable_migrate设为true
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四、调用 http://10.1.5.9:8080/repair_fileinfo
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注意：迁移过程中会扫描整下files目录下的所有文件，
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速度较慢，迁移完成后请将enable_migrate设为false
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```
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@ -157,7 +157,9 @@ const (
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"是否支持按组（集群）管理,主要用途是Nginx支持多集群": "默认不支持,不支持时路径为http://10.1.5.4:8080/action,支持时为http://10.1.5.4:8080/group(配置中的group参数)/action,action为动作名，如status,delete,sync等",
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"support_group_manage": false,
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"管理ip列表": "用于管理集的ip白名单,",
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"admin_ips": ["127.0.0.1"]
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"admin_ips": ["127.0.0.1"],
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"是否启用迁移": "默认不启用",
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"enable_migrate": false
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}
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`
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)
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@ -244,6 +246,7 @@ type GloablConfig struct {
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SupportGroupManage bool `json:"support_group_manage"`
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AdminIps []string `json:"admin_ips"`
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EnableMergeSmallFile bool `json:"enable_merge_small_file"`
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EnableMigrate bool `json:"enable_migrate"`
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}
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func NewServer() *Server {
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@ -875,6 +878,66 @@ func (this *Server) BackUpMetaDataByDate(date string) {
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os.Remove(metaFileName)
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}
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}
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func (this *Server) RepairFileInfoFromFile() {
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defer func() {
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if re := recover(); re != nil {
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buffer := debug.Stack()
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log.Error("RepairFileInfoFromFile")
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log.Error(re)
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log.Error(string(buffer))
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}
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}()
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if this.lockMap.IsLock("RepairFileInfoFromFile") {
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log.Warn("Lock RepairFileInfoFromFile")
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return
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}
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this.lockMap.LockKey("RepairFileInfoFromFile")
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defer this.lockMap.UnLockKey("RepairFileInfoFromFile")
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handlefunc := func(file_path string, f os.FileInfo, err error) error {
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var (
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files []os.FileInfo
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fi os.FileInfo
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fileInfo FileInfo
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sum string
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pathMd5 string
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)
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if f.IsDir() {
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files, err = ioutil.ReadDir(file_path)
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if err != nil {
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return err
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}
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for _, fi = range files {
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if fi.IsDir() || fi.Size() == 0 {
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continue
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}
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pathMd5 = this.util.MD5(file_path + "/" + fi.Name())
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if finfo, _ := this.GetFileInfoFromLevelDB(pathMd5); finfo != nil && finfo.Md5 != "" {
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continue
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}
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sum, err = this.util.GetFileSumByName(file_path+"/"+fi.Name(), Config().FileSumArithmetic)
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if err != nil {
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log.Error(err)
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continue
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}
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fileInfo = FileInfo{
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Size: fi.Size(),
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Name: fi.Name(),
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Path: strings.Replace(file_path, "\\", "/", -1),
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Md5: sum,
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TimeStamp: fi.ModTime().Unix(),
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}
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this.SaveFileMd5Log(&fileInfo, CONST_FILE_Md5_FILE_NAME)
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}
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}
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return nil
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}
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pathname := STORE_DIR
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fi, _ := os.Stat(pathname)
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if fi.IsDir() {
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filepath.Walk(pathname, handlefunc)
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}
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log.Info("RepairFileInfoFromFile is finish.")
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}
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func (this *Server) RepairStatByDate(date string) StatDateFileInfo {
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defer func() {
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if re := recover(); re != nil {
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@ -2652,10 +2715,13 @@ func (this *Server) RepairFileInfo(w http.ResponseWriter, r *http.Request) {
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w.Write([]byte(this.GetClusterNotPermitMessage(r)))
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return
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}
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if !Config().EnableMigrate {
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w.Write([]byte("please set enable_migrate=true"))
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return
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}
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result.Status = "ok"
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//result.Message = "repair job start,don't try again"
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result.Message = "very danger , disable by system"
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//go this.RepairFileInfoFromFile()
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result.Message = "repair job start,don't try again,very danger "
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go this.RepairFileInfoFromFile()
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w.Write([]byte(this.util.JsonEncodePretty(result)))
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}
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func (this *Server) Reload(w http.ResponseWriter, r *http.Request) {
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@ -3310,14 +3376,14 @@ func (this *Server) Main() {
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}
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}()
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}
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groupRoute:=""
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groupRoute := ""
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if Config().SupportGroupManage {
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groupRoute="/"+Config().Group
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groupRoute = "/" + Config().Group
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}
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if groupRoute=="" {
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http.HandleFunc(fmt.Sprintf("%s", "/" ), this.Index)
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if groupRoute == "" {
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http.HandleFunc(fmt.Sprintf("%s", "/"), this.Index)
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} else {
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http.HandleFunc(fmt.Sprintf("%s", groupRoute ), this.Index)
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http.HandleFunc(fmt.Sprintf("%s", groupRoute), this.Index)
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}
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http.HandleFunc(fmt.Sprintf("%s/check_file_exist", groupRoute), this.CheckFileExist)
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http.HandleFunc(fmt.Sprintf("%s/upload", groupRoute), this.Upload)
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