Hi, Ganpat, Thanks a lot for your comments. I do not really understand your solution. Do you mean I need to create a dummy file and verify it in the amphora? Best regards, Yipei -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.openstack.org/pipermail/openstack-dev/attachments/20170628/8f67e57b/attachment.html>