Instance creation fails because of corrupt image download

Issue

• Instance creation id failing because of corrupt image download:

ERROR nova.image.glance [req-XXXX XXXX XXXX - - -] Error writing to /var/lib/nova/instances/_base/XXXX.part: [Errno 32] Corrupt image download. Checksum was f432tsdf3r5qfdsgasfaawetaw245 expected 914gsdfj295u301fsdjbfq92asd421
DEBUG oslo_concurrency.lockutils [req-XXXX XXXX XXXX - - -] Lock "XXXX" released by "nova.virt.libvirt.imagebackend.fetch_func_sync" :: held 121.150s inner /usr/lib/python2.7/site-packages/oslo_concurrency/lockutils.py:282
2017-07-24 03:46:22.563 49817 ERROR nova.compute.manager [req-XXXX XXXX XXXX - - -] [instance: XXXX] Instance failed to spawn
[...]
2017-07-24 03:46:22.563 49817 ERROR nova.compute.manager [instance: XXXX] IOError: [Errno 32] Corrupt image download. Checksum was f432tsdf3r5qfdsgasfaawetaw245 expected 914gsdfj295u301fsdjbfq92asd421
2017-07-24 03:46:22.563 49817 ERROR nova.compute.manager [instance: XXXX] 
2017-07-24 03:46:22.564 49817 INFO nova.compute.manager [req-XXXX XXXX XXXX - - -] [instance: XXXX] Terminating instance