have the following issue;

After successfully downloading the cirros image file.. i followed the following step.

root@controller:/tmp/images# $ glance image-create --name="cirros" --file cirros-0.3.3-x86_64-disk.img --disk-format=qcow2 --container-format bare --is-public true --progess

after attempting 21% as a progress It revert with following output : 1- Request Returned failure status 2-Invalid Openstack Identity credential.

please help me? how to resolve this issue?