Hi In order to work on [1] , nova need to know what kind of exception are raised when using cinderclient so that it can handle like [2] did? In this case, we don't need to distinguish the error case based on string compare , it's more accurate and less error leading Anyone is doing it or any other methods I can use to catch cinder specified exception in nova? Thanks [1] https://bugs.launchpad.net/nova/+bug/1450658 [2] https://github.com/openstack/python-neutronclient/blob/master/neutronclient/v2_0/client.py#L64 Best Regards! Kevin (Chen) Ji 纪 晨 Engineer, zVM Development, CSTL Notes: Chen CH Ji/China/IBM at IBMCN Internet: jichenjc at cn.ibm.com Phone: +86-10-82454158 Address: 3/F Ring Building, ZhongGuanCun Software Park, Haidian District, Beijing 100193, PRC -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.openstack.org/pipermail/openstack-dev/attachments/20150506/22148f97/attachment.html>