mirror of
https://github.com/seaweedfs/seaweedfs.git
synced 2024-11-25 19:49:10 +08:00
92 lines
2.6 KiB
Go
92 lines
2.6 KiB
Go
package command
|
|
|
|
import (
|
|
"os"
|
|
"path"
|
|
"strconv"
|
|
|
|
"github.com/chrislusf/seaweedfs/weed/glog"
|
|
"github.com/chrislusf/seaweedfs/weed/storage"
|
|
"github.com/chrislusf/seaweedfs/weed/storage/needle"
|
|
"github.com/chrislusf/seaweedfs/weed/storage/needle_map"
|
|
"github.com/chrislusf/seaweedfs/weed/storage/super_block"
|
|
"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.")
|
|
)
|
|
|
|
type VolumeFileScanner4Fix struct {
|
|
version needle.Version
|
|
nm *needle_map.MemDb
|
|
}
|
|
|
|
func (scanner *VolumeFileScanner4Fix) VisitSuperBlock(superBlock super_block.SuperBlock) error {
|
|
scanner.version = superBlock.Version
|
|
return nil
|
|
|
|
}
|
|
func (scanner *VolumeFileScanner4Fix) ReadNeedleBody() bool {
|
|
return false
|
|
}
|
|
|
|
func (scanner *VolumeFileScanner4Fix) VisitNeedle(n *needle.Needle, offset int64, needleHeader, needleBody []byte) error {
|
|
glog.V(2).Infof("key %d offset %d size %d disk_size %d gzip %v", n.Id, offset, n.Size, n.DiskSize(scanner.version), n.IsGzipped())
|
|
if n.Size > 0 && n.Size != types.TombstoneFileSize {
|
|
pe := scanner.nm.Set(n.Id, types.ToOffset(offset), n.Size)
|
|
glog.V(2).Infof("saved %d with error %v", n.Size, pe)
|
|
} else {
|
|
glog.V(2).Infof("skipping deleted file ...")
|
|
return scanner.nm.Delete(n.Id)
|
|
}
|
|
return nil
|
|
}
|
|
|
|
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 := needle_map.NewMemDb()
|
|
|
|
vid := needle.VolumeId(*fixVolumeId)
|
|
scanner := &VolumeFileScanner4Fix{
|
|
nm: nm,
|
|
}
|
|
|
|
err = storage.ScanVolumeFile(*fixVolumePath, *fixVolumeCollection, vid, storage.NeedleMapInMemory, scanner)
|
|
if err != nil {
|
|
glog.Fatalf("Export Volume File [ERROR] %s\n", err)
|
|
os.Remove(indexFileName)
|
|
}
|
|
|
|
return true
|
|
}
|