func genTransitionObjName(bucket string) (string, error) {
	u, err := uuid.NewRandom()
	if err != nil {
		return "", err
	}
	us := u.String()
	hash := xxh3.HashString(pathJoin(globalDeploymentID(), bucket))
	obj := fmt.Sprintf("%s/%s/%s/%s", strconv.FormatUint(hash, 16), us[0:2], us[2:4], us)
	return obj, nil
}

		Message:    errBody,
		Resource:   reqURL.Path,
		BucketName: reqInfo.BucketName,
		Key:        reqInfo.ObjectName,
		RequestID:  w.Header().Get(xhttp.AmzRequestID),
		HostID:     globalDeploymentID(),
	}
	encodedErrorResponse := encodeResponseJSON(errorResponse)
	writeResponse(w, err.HTTPStatusCode, encodedErrorResponse, mimeJSON)