Re: [Rdo-list] RDO Nova error - cannot launch an instance
On Thu, May 15, 2014 at 05:03:13PM +0100, Adam Fyfe wrote:
Hi List
I cannot launch an instance.
get this in compute.log:
2014-05-15 17:02:09.225 4209 TRACE nova.compute.manager [instance:
31f99d54-1da0-4847-b8f0-d38fe1617ef9] libvirtError: Hook script execution
failed: Hook script /etc/libvirt/hooks/qemu qemu failed with error code 256
You seem to be using a libvirt hook script[1] which is not part of
default OpenStack installations. Did you ensure that your that script is
invoked correctly? (As that is executed everytime QEMU starts/stops a
Nova guest.
To diagnose this further, a few questions:
- What host OS?
- What OpenStack version (openstack-nova specifically)
- Versions of libvirt, qemu on your host
- Your (sanitized) nova.conf from Compute node
- What hypervisor combination? I assume libvirt+QEMU+KVM.
- Any other configuration alterations you did that'll occur during
boot time of a guest
Additionally, you can enable libvirt debug logs by setting these in your
/etc/libvirt/libvirtd.conf:
log_level = 1
log_outputs = 1:file:/var/tmp/libvirtd.log
Restart libvirtd, openstack-nova-compute, and start your guest
(Don't forget to turn off the verbose logging once your debugging is
done.)
[1] http://libvirt.org/hooks.html
--
/kashyap