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XL/Multipart: isMultipartUpload() checks for presence of uploads.json on a random disk.
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3487b3c095
commit
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@ -259,45 +259,9 @@ func cleanupUploadedParts(bucket, object, uploadID string, storageDisks ...Stora
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// Returns if the prefix is a multipart upload.
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func (xl xlObjects) isMultipartUpload(bucket, prefix string) bool {
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// Create errs and volInfo slices of storageDisks size.
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var errs = make([]error, len(xl.storageDisks))
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// Allocate a new waitgroup.
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var wg = &sync.WaitGroup{}
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for index, disk := range xl.storageDisks {
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wg.Add(1)
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// Stat file on all the disks in a routine.
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go func(index int, disk StorageAPI) {
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defer wg.Done()
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_, err := disk.StatFile(bucket, path.Join(prefix, uploadsJSONFile))
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if err != nil {
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errs[index] = err
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return
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}
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errs[index] = nil
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}(index, disk)
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}
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// Wait for all the Stat operations to finish.
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wg.Wait()
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var errFileNotFoundCount int
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for _, err := range errs {
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if err != nil {
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if err == errFileNotFound {
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errFileNotFoundCount++
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// If we have errors with file not found greater than allowed read
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// quorum we return err as errFileNotFound.
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if errFileNotFoundCount > len(xl.storageDisks)-xl.readQuorum {
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return false
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}
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continue
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}
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errorIf(err, "Unable to access file "+path.Join(bucket, prefix))
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return false
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}
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}
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return true
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disk := xl.getRandomDisk() // Choose a random disk.
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_, err := disk.StatFile(bucket, pathJoin(prefix, uploadsJSONFile))
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return err == nil
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}
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// listUploadsInfo - list all uploads info.
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