testCases := []struct {
		parts          []CompletePart
		expectedResult string
		expectedErr    string
	}{
		// Wrong MD5 hash string, returns md5um of hash
		{[]CompletePart{{ETag: "wrong-md5-hash-string"}}, "0deb8cb07527b4b2669c861cb9653607-1", ""},

		// Single CompletePart with valid MD5 hash string.
		{[]CompletePart{{ETag: "cf1f738a5924e645913c984e0fe3d708"}}, "10dc1617fbcf0bd0858048cb96e6bd77-1", ""},

	// Checksum values
	ChecksumCRC32  string
	ChecksumCRC32C string
	ChecksumSHA1   string
	ChecksumSHA256 string
}

// CompletePart - represents the part that was completed, this is sent by the client
// during CompleteMultipartUpload request.
type CompletePart struct {
	// Part number identifying the part. This is a positive integer between 1 and
	// 10,000
	PartNumber int

		if err != nil {
			return fmt.Errorf("rebalanceObject: NewMultipartUpload() %w", err)
		}
		defer z.AbortMultipartUpload(ctx, bucket, oi.Name, res.UploadID, ObjectOptions{NoAuditLog: true})

		parts := make([]CompletePart, len(oi.Parts))
		for i, part := range oi.Parts {
			hr, err := hash.NewReader(ctx, io.LimitReader(gr, part.Size), part.Size, "", "", part.ActualSize)
			if err != nil {

	AbortMultipartUpload(ctx context.Context, bucket, object, uploadID string, opts ObjectOptions) error
	CompleteMultipartUpload(ctx context.Context, bucket, object, uploadID string, uploadedParts []CompletePart, opts ObjectOptions) (objInfo ObjectInfo, err error)

	GetDisks(poolIdx, setIdx int) ([]StorageAPI, error) // return the disks belonging to pool and set.

		if err != nil {
			return fmt.Errorf("decommissionObject: NewMultipartUpload() %w", err)
		}
		defer z.AbortMultipartUpload(ctx, bucket, objInfo.Name, res.UploadID, ObjectOptions{NoAuditLog: true})
		parts := make([]CompletePart, len(objInfo.Parts))
		for i, part := range objInfo.Parts {
			hr, err := hash.NewReader(ctx, io.LimitReader(gr, part.Size), part.Size, "", "", part.ActualSize)
			if err != nil {

	if err != nil {
		// Failed to upload object part, abort.
		t.Fatalf("%s : %s", instanceType, err.Error())
	}

	// Complete multipart.
	parts := []CompletePart{
		{ETag: etag1, PartNumber: 1},
		{ETag: etag2, PartNumber: 2},
	}
	_, err = obj.CompleteMultipartUpload(context.Background(), bucket, object, uploadID, parts, ObjectOptions{})
	if err != nil {

		if err != nil {
			t.Errorf("%s: <ERROR> %s", instanceType, err)
		}
		if calcPartInfo.ETag != expectedETaghex {
			t.Errorf("MD5 Mismatch")
		}
		completedParts.Parts = append(completedParts.Parts, CompletePart{
			PartNumber: i,
			ETag:       calcPartInfo.ETag,
		})
	}
	objInfo, err := obj.CompleteMultipartUpload(context.Background(), "bucket", "key", uploadID, completedParts.Parts, ObjectOptions{})
	if err != nil {

	if err != nil {
		logger.CriticalIf(GlobalContext, err)
	}
	return u[:]
}

// Create an s3 compatible MD5sum for complete multipart transaction.
func getCompleteMultipartMD5(parts []CompletePart) string {
	var finalMD5Bytes []byte
	for _, part := range parts {
		md5Bytes, err := hex.DecodeString(canonicalizeETag(part.ETag))
		if err != nil {
			finalMD5Bytes = append(finalMD5Bytes, []byte(part.ETag)...)

}

// CompleteMultipartUpload - completes a pending multipart transaction, on hashedSet based on object name.
func (s *erasureSets) CompleteMultipartUpload(ctx context.Context, bucket, object, uploadID string, uploadedParts []CompletePart, opts ObjectOptions) (objInfo ObjectInfo, err error) {
	set := s.getHashedSet(object)
	return set.CompleteMultipartUpload(ctx, bucket, object, uploadID, uploadedParts, opts)
}

/*

All disks online

// md5sums of all the parts.
//
// Implements S3 compatible Complete multipart API.
func (er erasureObjects) CompleteMultipartUpload(ctx context.Context, bucket string, object string, uploadID string, parts []CompletePart, opts ObjectOptions) (oi ObjectInfo, err error) {
	if !opts.NoAuditLog {
		auditObjectErasureSet(ctx, object, &er)
	}

	if opts.CheckPrecondFn != nil {
		if !opts.NoLock {