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FS/Multipart: remove uploads.json on complete-multipart if no more uploadIDs are present for the object. (#1843) 

Fixes #1835
This commit is contained in:
Krishna Srinivas 2016-06-03 04:24:00 +05:30 committed by Harshavardhana
parent 611c892f8f
commit aa1d769b1e
2 changed files with 30 additions and 1 deletions
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29
fs-v1-multipart.go
View File

@ -543,6 +543,35 @@ func (fs fsObjects) CompleteMultipartUpload(bucket string, object string, upload
return "", err
}
// Hold the lock so that two parallel complete-multipart-uploads do not
// leave a stale uploads.json behind.
nsMutex.Lock(minioMetaBucket, pathJoin(mpartMetaPrefix, bucket, object))
defer nsMutex.Unlock(minioMetaBucket, pathJoin(mpartMetaPrefix, bucket, object))
// Validate if there are other incomplete upload-id's present for
// the object, if yes do not attempt to delete 'uploads.json'.
uploadsJSON, err := readUploadsJSON(bucket, object, fs.storage)
if err != nil {
return "", toObjectErr(err, minioMetaBucket, object)
}
// If we have successfully read `uploads.json`, then we proceed to
// purge or update `uploads.json`.
uploadIDIdx := uploadsJSON.Index(uploadID)
if uploadIDIdx != -1 {
uploadsJSON.Uploads = append(uploadsJSON.Uploads[:uploadIDIdx], uploadsJSON.Uploads[uploadIDIdx+1:]...)
}
if len(uploadsJSON.Uploads) > 0 {
if err = updateUploadsJSON(bucket, object, uploadsJSON, fs.storage); err != nil {
return "", toObjectErr(err, minioMetaBucket, path.Join(mpartMetaPrefix, bucket, object))
}
// Return success.
return s3MD5, nil
}
if err = fs.storage.DeleteFile(minioMetaBucket, path.Join(mpartMetaPrefix, bucket, object, uploadsJSONFile)); err != nil {
return "", toObjectErr(err, minioMetaBucket, path.Join(mpartMetaPrefix, bucket, object))
}
// Return md5sum.
return s3MD5, nil
}

2
xl-v1-multipart.go
View File

@ -639,7 +639,7 @@ func (xl xlObjects) CompleteMultipartUpload(bucket string, object string, upload
// Delete the previously successfully renamed object.
xl.deleteObject(minioMetaBucket, path.Join(tmpMetaPrefix, uniqueID))
// Hold the lock so that two parallel complete-multipart-uploads do no
// Hold the lock so that two parallel complete-multipart-uploads do not
// leave a stale uploads.json behind.
nsMutex.Lock(minioMetaBucket, pathJoin(mpartMetaPrefix, bucket, object))
defer nsMutex.Unlock(minioMetaBucket, pathJoin(mpartMetaPrefix, bucket, object))