package command import ( "os" "path" "strconv" "github.com/chrislusf/seaweedfs/weed/glog" "github.com/chrislusf/seaweedfs/weed/storage" "github.com/chrislusf/seaweedfs/weed/storage/types" ) func init() { cmdFix.Run = runFix // break init cycle } var cmdFix = &Command{ UsageLine: "fix -dir=/tmp -volumeId=234", Short: "run weed tool fix on index file if corrupted", Long: `Fix runs the SeaweedFS fix command to re-create the index .idx file. `, } var ( fixVolumePath = cmdFix.Flag.String("dir", ".", "data directory to store files") fixVolumeCollection = cmdFix.Flag.String("collection", "", "the volume collection name") fixVolumeId = cmdFix.Flag.Int("volumeId", -1, "a volume id. The volume should already exist in the dir. The volume index file should not exist.") ) func runFix(cmd *Command, args []string) bool { if *fixVolumeId == -1 { return false } baseFileName := strconv.Itoa(*fixVolumeId) if *fixVolumeCollection != "" { baseFileName = *fixVolumeCollection + "_" + baseFileName } indexFileName := path.Join(*fixVolumePath, baseFileName+".idx") indexFile, err := os.OpenFile(indexFileName, os.O_WRONLY|os.O_CREATE|os.O_TRUNC, 0644) if err != nil { glog.Fatalf("Create Volume Index [ERROR] %s\n", err) } defer indexFile.Close() nm := storage.NewBtreeNeedleMap(indexFile) defer nm.Close() var version storage.Version vid := storage.VolumeId(*fixVolumeId) err = storage.ScanVolumeFile(*fixVolumePath, *fixVolumeCollection, vid, storage.NeedleMapInMemory, func(superBlock storage.SuperBlock) error { version = superBlock.Version() return nil }, false, func(n *storage.Needle, offset int64) error { glog.V(2).Infof("key %d offset %d size %d disk_size %d gzip %v", n.Id, offset, n.Size, n.DiskSize(version), n.IsGzipped()) if n.Size > 0 { pe := nm.Put(n.Id, types.Offset(offset/types.NeedlePaddingSize), n.Size) glog.V(2).Infof("saved %d with error %v", n.Size, pe) } else { glog.V(2).Infof("skipping deleted file ...") return nm.Delete(n.Id, types.Offset(offset/types.NeedlePaddingSize)) } return nil }) if err != nil { glog.Fatalf("Export Volume File [ERROR] %s\n", err) os.Remove(indexFileName) } return true }