Check your scheduler logs you should be able to figure out whats happening. If not clear then turn on your logs from info mode to debug in nova.conf. -Hemant On Tue, Sep 9, 2014 at 12:10 AM, Sharan Kumar M <sharan.monikantan at gmail.com > wrote: > Hi, > > I am trying to setup my own OpenStack cloud for development. I installed > DevStack on a VM and the installation is fine. I am able to log in via > Horizon. I followed these steps to create an instance via Horizon. > http://isurues.wordpress.com/tag/devstack/. However, when I launch an > instance, I get the following error. > > Failed to launch instance "nova": Please try again later [Error: No valid > host was found. ] > > I checked if the libvirt_type=qemu in nova.conf. Also the package > nova-compute-qemu is installed. I am using Ubuntu 14.04. > > Can someone identify why this problem occurs and how to solve it? What are > the possible causes for this problem? > > Thanks, > Sharan Kumar M > > _______________________________________________ > OpenStack-dev mailing list > OpenStack-dev at lists.openstack.org > http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-dev > > -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.openstack.org/pipermail/openstack-dev/attachments/20140909/62d129a9/attachment.html>