[Openstack] Error: Failed to launch instance "inst": Please try again later [Error: No valid host was found. Exceeded max scheduling attempts 3 for instance ....
Silvia Fichera
fichera.sil at gmail.com
Fri Jun 19 12:50:57 UTC 2015
Hi all, I have 4 VMs in a server, managed by ESXi. One of these perform as
OVS, one is the Openstack controller and the other two are the compute
hosts. Yesterday I set up Openstack via devstack with Opendaylight
integration for VTN. There was some issue in the VTN configuration but I
was able to create the instances. This morning I tryed again to launch the
instances before facing the other problems and there was this error:
Error: Failed to launch instance "inst": Please try again later [Error: No
valid host was found. Exceeded max scheduling attempts 3 for instance
a12ab017-396a-46d0-9749-011b829c6273. Last exception: [u'Traceback (most
recent call last):\n', u' File "/opt/stack/nova/nova/compute/manager.py",
line 2081, in _do_build_and_run_in].
My VMs have the maximun availability of memory and CPU (the same as
yesterday). I tryed with a tiny flavour but there is the same error. When I
do: nova-manage service list in my controller node I have this output:
Binary Host Zone Status State Updated_At
nova-conductor devstack1 internal enabled :-) 2015-06-19 12:45:16
nova-compute devstack1 nova enabled :-) 2015-06-19 12:45:08
nova-cert devstack1 internal enabled :-) 2015-06-19 12:45:10
nova-scheduler devstack1 internal enabled :-) 2015-06-19 12:45:10
nova-consoleauth devstack1 internal enabled :-) 2015-06-19 12:45:14
nova-compute devstack2 nova enabled :-) 2015-06-19 12:45:10
nova-compute devstack3 nova enabled :-) 2015-06-19 12:45:11
(all smiling!!)
I have also read to check the file /var/log/nova/nova.log (if I'm not
wrong), but I can't find the directory nova inside /var/log
Thank you
--
Silvia Fichera
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