Open Stack

Hi Lars,

There are no errors being logged by dnsmasq; started just after 2AM,
> all of the "DHCPREQUEST ..." traffic just stops, and the logs after
> that point look like this:
>

We ran into similar issues that turned out to be a qemu bug:

https://bugs.launchpad.net/ubuntu/+source/qemu-kvm/+bug/997978

The fixed qemu-kvm package is now in the main Ubuntu repository (assuming
you are using Ubuntu 12.04), so maybe upgrading it will resolve your issue
quickly. Note that upgrading it does not affect currently running instances
(and subsequently means only newly launched instances will be fixed).


> Oct 19 02:02:34 stack-1 dnsmasq[32013]: read /etc/hosts - 2 addresses
> Oct 19 02:02:34 stack-1 dnsmasq[32013]: read
> /var/lib/nova/networks/nova-br662.conf
> Oct 19 02:02:35 stack-1 dnsmasq[32013]: read /etc/hosts - 2 addresses
> Oct 19 02:02:35 stack-1 dnsmasq[32013]: read
> /var/lib/nova/networks/nova-br662.conf
> Oct 19 02:03:12 stack-1 dnsmasq[32013]: read /etc/hosts - 2 addresses
> Oct 19 02:03:12 stack-1 dnsmasq[32013]: read
> /var/lib/nova/networks/nova-br662.conf
>
> ...until I restart things.


For us, this included restarting the instance since it lost its IP address
from lack of DHCP traffic. While we were troubleshooting the issue, we
ended up adding a local account to each instance so we can log into the vnc
console and restart networking services.

Thanks,
Joe


-- 
Joe Topjian
Systems Administrator
Cybera Inc.

www.cybera.ca

Cybera is a not-for-profit organization that works to spur and support
innovation, for the economic benefit of Alberta, through the use
of cyberinfrastructure.
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