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fix "weed backup" rerunning

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"weed backup" rerunning will already have ReplicaPlacement set, while version is not set.
This commit is contained in:
Chris Lu 2018-09-09 02:48:58 -07:00
parent bc8d34143d
commit 9b3bf0e46c
1 changed files with 8 additions and 3 deletions
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11
weed/storage/volume_loading.go
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@ -19,8 +19,9 @@ func loadVolumeWithoutIndex(dirname string, collection string, id VolumeId, need
func (v *Volume) load(alsoLoadIndex bool, createDatIfMissing bool, needleMapKind NeedleMapType, preallocate int64) error {
var e error
fileName := v.FileName()
alreadyHasSuperBlock := false
if exists, canRead, canWrite, modifiedTime := checkFile(fileName + ".dat"); exists {
if exists, canRead, canWrite, modifiedTime, fileSize := checkFile(fileName + ".dat"); exists {
if !canRead {
return fmt.Errorf("cannot read Volume Data file %s.dat", fileName)
}
@ -32,6 +33,9 @@ func (v *Volume) load(alsoLoadIndex bool, createDatIfMissing bool, needleMapKind
v.dataFile, e = os.Open(fileName + ".dat")
v.readOnly = true
}
if fileSize >= _SuperBlockSize {
alreadyHasSuperBlock = true
}
} else {
if createDatIfMissing {
v.dataFile, e = createVolumeFile(fileName+".dat", preallocate)
@ -48,7 +52,7 @@ func (v *Volume) load(alsoLoadIndex bool, createDatIfMissing bool, needleMapKind
}
}
if v.ReplicaPlacement == nil {
if alreadyHasSuperBlock {
e = v.readSuperBlock()
} else {
e = v.maybeWriteSuperBlock()
@ -97,7 +101,7 @@ func (v *Volume) load(alsoLoadIndex bool, createDatIfMissing bool, needleMapKind
return e
}
func checkFile(filename string) (exists, canRead, canWrite bool, modTime time.Time) {
func checkFile(filename string) (exists, canRead, canWrite bool, modTime time.Time, fileSize int64) {
exists = true
fi, err := os.Stat(filename)
if os.IsNotExist(err) {
@ -111,5 +115,6 @@ func checkFile(filename string) (exists, canRead, canWrite bool, modTime time.Ti
canWrite = true
}
modTime = fi.ModTime()
fileSize = fi.Size()
return
}