On Sun, May 3, 2015 at 11:16 AM, Vedsar Kushwaha <[email protected]> wrote: > I was using JUNO on Centos7. > Everything was running perfectly fine. I did centos update. > After that I'm getting this error "No valid host found".
This is a very generic error, and not very informative, I am afraid. To track down the root of the problem I usually check: * nova-scheduler logs: there should be a line explaining why it's not able to schedule the VM on any host. Maybe you don't actually have enough free ram/disk/cpus on any of your compute nodes, but could also be that the VM failed on all the compute nodes multiple times for other reasons, and the RetryFilter prevented the scheduling of the VM on any node where it failed already. In this case, check: * nova-compute logs: if the VM was scheduled on a compute node and failed, you will find here an hint of the root cause. .a. -- [email protected] [email protected] +41 (0)44 635 42 22 S3IT: Service and Support for Science IT http://www.s3it.uzh.ch/ University of Zurich Winterthurerstrasse 190 CH-8057 Zurich Switzerland _______________________________________________ Mailing list: http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack Post to : [email protected] Unsubscribe : http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack
