Verifying the Image Service Installation

root@controller:/tmp/images# glance --os_username adminUser --os_password password --os_tenant_name=openstackDemo --os_auth_url=http://127.0.0.1:5000/v2.0 add name="tty-linux-kernel" disk_format=aki container_format=aki < ttylinux-uec-amd64-12.1_2.6.35-22_1-vmlinuz
Uploading image 'tty-linux-kernel'
Failed to add image. Got error:
The request returned 503 Service Unavilable. This generally occurs on service overload or other transient outage.
Note: Your image metadata may still be in the registry, but the image's status will likely be 'killed'.
================================================================================================================================================================================================================[100%] 41.7M/s, ETA  0h  0m  0s