OpenStack Compute (nova)

  1. Series queens
  2. Bug #1840068
  3. Comment #1

Comment 1 for bug 1840068

Revision history for this message
Matt Riedemann (mriedem) wrote : Re: (lxc) Instance failed to spawn: TypeError: object of type 'filter' has no len()

Looks like this is due to nbd mount code not being py3 compliant. We call _detect_nbd_devices which returns a filter:

https://github.com/openstack/nova/blob/e3a55493ba0cb405f14b9090282d93eb230c5715/nova/virt/disk/mount/nbd.py#L44

Which gets passed to random.shuffle:

https://github.com/openstack/nova/blob/e3a55493ba0cb405f14b9090282d93eb230c5715/nova/virt/disk/mount/nbd.py#L64

https://docs.python.org/3.6/library/random.html#random.shuffle

https://docs.python.org/2.7/library/random.html#random.shuffle