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read volume lastAppendAtNs when loading a volume

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This commit is contained in:
Chris Lu 2019-04-19 01:56:38 -07:00
parent ac2727853f
commit 0be2d51c96
4 changed files with 28 additions and 24 deletions
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2
weed/storage/disk_location.go
View file

@ -57,9 +57,11 @@ func (l *DiskLocation) loadExistingVolume(dir os.FileInfo, needleMapKind NeedleM
size, _, _ := v.FileStat()
glog.V(0).Infof("data file %s, replicaPlacement=%s v=%d size=%d ttl=%s",
l.Directory+"/"+name, v.ReplicaPlacement, v.Version(), size, v.Ttl.String())
// println("volume", vid, "last append at", v.lastAppendAtNs)
} else {
glog.V(0).Infof("new volume %s error %s", name, e)
}
}
}
}

4
weed/storage/needle/needle_read_write.go
View file

@ -185,15 +185,17 @@ func (n *Needle) ReadData(r *os.File, offset int64, size uint32, version Version
case Version2, Version3:
err = n.readNeedleDataVersion2(bytes[NeedleHeaderSize : NeedleHeaderSize+int(n.Size)])
}
if size == 0 || err != nil {
if err != nil && err != io.EOF{
return err
}
if size > 0 {
checksum := util.BytesToUint32(bytes[NeedleHeaderSize+size : NeedleHeaderSize+size+NeedleChecksumSize])
newChecksum := NewCRC(n.Data)
if checksum != newChecksum.Value() {
return errors.New("CRC error! Data On Disk Corrupted")
}
n.Checksum = newChecksum
}
if version == Version3 {
tsOffset := NeedleHeaderSize + size + NeedleChecksumSize
n.AppendAtNs = util.BytesToUint64(bytes[tsOffset : tsOffset+TimestampSize])

34
weed/storage/volume_checking.go
View file

@ -9,28 +9,29 @@ import (
"github.com/chrislusf/seaweedfs/weed/util"
)
func CheckVolumeDataIntegrity(v *Volume, indexFile *os.File) error {
func CheckVolumeDataIntegrity(v *Volume, indexFile *os.File) (lastAppendAtNs uint64, e error) {
var indexSize int64
var e error
if indexSize, e = verifyIndexFileIntegrity(indexFile); e != nil {
return fmt.Errorf("verifyIndexFileIntegrity %s failed: %v", indexFile.Name(), e)
return 0, fmt.Errorf("verifyIndexFileIntegrity %s failed: %v", indexFile.Name(), e)
}
if indexSize == 0 {
return nil
return 0,nil
}
var lastIdxEntry []byte
if lastIdxEntry, e = readIndexEntryAtOffset(indexFile, indexSize-NeedleMapEntrySize); e != nil {
return fmt.Errorf("readLastIndexEntry %s failed: %v", indexFile.Name(), e)
return 0, fmt.Errorf("readLastIndexEntry %s failed: %v", indexFile.Name(), e)
}
key, offset, size := IdxFileEntry(lastIdxEntry)
if offset.IsZero() || size == TombstoneFileSize {
return nil
if offset.IsZero() {
return 0,nil
}
if e = verifyNeedleIntegrity(v.dataFile, v.Version(), offset.ToAcutalOffset(), key, size); e != nil {
return fmt.Errorf("verifyNeedleIntegrity %s failed: %v", indexFile.Name(), e)
if size == TombstoneFileSize {
size = 0
}
return nil
if lastAppendAtNs, e = verifyNeedleIntegrity(v.dataFile, v.Version(), offset.ToAcutalOffset(), key, size); e != nil {
return lastAppendAtNs, fmt.Errorf("verifyNeedleIntegrity %s failed: %v", indexFile.Name(), e)
}
return
}
func verifyIndexFileIntegrity(indexFile *os.File) (indexSize int64, err error) {
@ -52,14 +53,13 @@ func readIndexEntryAtOffset(indexFile *os.File, offset int64) (bytes []byte, err
return
}
func verifyNeedleIntegrity(datFile *os.File, v needle.Version, offset int64, key NeedleId, size uint32) error {
func verifyNeedleIntegrity(datFile *os.File, v needle.Version, offset int64, key NeedleId, size uint32) (lastAppendAtNs uint64, err error) {
n := new(needle.Needle)
err := n.ReadData(datFile, offset, size, v)
if err != nil {
return err
if err = n.ReadData(datFile, offset, size, v); err != nil {
return n.AppendAtNs, err
}
if n.Id != key {
return fmt.Errorf("index key %#x does not match needle's Id %#x", key, n.Id)
return n.AppendAtNs, fmt.Errorf("index key %#x does not match needle's Id %#x", key, n.Id)
}
return nil
return n.AppendAtNs, err
}

2
weed/storage/volume_loading.go
View file

@ -73,7 +73,7 @@ func (v *Volume) load(alsoLoadIndex bool, createDatIfMissing bool, needleMapKind
return fmt.Errorf("cannot write Volume Index %s.idx: %v", fileName, e)
}
}
if e = CheckVolumeDataIntegrity(v, indexFile); e != nil {
if v.lastAppendAtNs, e = CheckVolumeDataIntegrity(v, indexFile); e != nil {
v.readOnly = true
glog.V(0).Infof("volumeDataIntegrityChecking failed %v", e)
}