VIRL: No Valid Host Was Found
Last Updated: [last-modified] (UTC)
The Problem
VIRL was updated. Then, a new simulation with two IOS routers was created. When the simulation was started, the management node was fine, but the routers displayed this error:
(ERROR) [Mar/03/2017 02:56:26] Node "R1" state changed from ABSENT to ERROR with message: No valid host was found. Exceeded max scheduling attempts 3 for instance 6975dea0-b68a-44de-a70e-9091b224987d. Last exception: [u'Traceback (most recent call last):\n', u' File "/usr/lib/python2.7/dist-packages/nova/compute/manager.py", line 2248, in _do: File "/usr/lib/python2.7/dist-packages/nova/conductor/manager.py", line 669, in build_instances
The Solution
- Open the VIRL web console
- Navigate to VIRL -> Server -> System Tools
- Open the System Console
- Run the commands below
sudo salt-call saltutil.sync_all sudo salt-call -l debug state.sls openstack-restart
Each command may take a minute to run. When they’re done, try running the simulation again.
