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Merge pull request #1683 from qieqieplus/master

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fix race condition when loading volumes concurrently
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Chris Lu 2020-12-16 07:24:27 -08:00 committed by GitHub
parent 200e56215a 45f902a9b7
commit 8cb67952db
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GPG key ID: 4AEE18F83AFDEB23
1 changed files with 7 additions and 5 deletions
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10
weed/storage/disk_location.go
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@ -99,12 +99,14 @@ func (l *DiskLocation) loadExistingVolume(fileInfo os.FileInfo, needleMapKind Ne
}
// avoid loading one volume more than once
l.volumesLock.RLock()
_, found := l.volumes[vid]
l.volumesLock.RUnlock()
if found {
l.volumesLock.Lock()
if _, found := l.volumes[vid]; found {
l.volumesLock.Unlock()
glog.V(1).Infof("loaded volume, %v", vid)
return true
} else {
l.volumes[vid] = nil
l.volumesLock.Unlock()
}
// load the volume