![]() The test_reassign_port_between_servers test in Tempest creates a port in neutron and two servers. It attaches the port to the first server and then quickly detaches it and waits for the port.device_id to be unbound from the server. Then it repeats that for the second server. The interface detach from the guest is asynchronous and happens before nova unbinds the port, so there is a race where the port's device_id is unset but the interface is still on the first guest when we try to attach to the second guest, which fails. This is a latent bug, but apparently has been tickled by the move to our neutron CI jobs to use ubuntu xenial nodes. The fix is to add a detach and retry loop on the interface detach on the guest so that we can wait until the interface is gone from the guest before nova unbinds the port in neutron, which is what the Tempest test is waiting for. Then the device should be available for attaching to the second guest. This is similar to what we do with detaching volumes. Closes-Bug: #1607714 Change-Id: Ic04aad8923ea2edf1d16e32c208cd41fdf898834 |
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functional | ||
live_migration/hooks | ||
unit | ||
__init__.py | ||
fixtures.py | ||
uuidsentinel.py |