openstack team mailing list archive

[Vishvananda Ishaya <vishvananda@xxxxxxxxx>]

Are you running in VLAN mode? If so, you probably need to update to a new version of dnsmasq.  See this message for reference:

http://osdir.com/ml/openstack-cloud-computing/2012-05/msg00785.html

Vish

On Jun 14, 2012, at 1:41 PM, Christian Parpart wrote:

> Hey all,
> 
> I feel really sad with saying this, now, that we have quite a few instances in producgtion
> since about 5 days at least, I now have encountered the second instance loosing its
> IP address due to "No DHCPOFFER" (as of syslog in the instance).
> 
> I checked the logs in the central nova-network and gateway node and found
> dnsmasq still to reply on requests from all the other instances and it even
> got the request from the instance in question and even sent an OFFER, as of what
> I can tell by now (i'm investigating / posting logs asap), but while it seemed
> that the dnsmasq sends an offer, the instances says it didn't receive one - wtf?
> 
> Please tell me what I can do to actually *fix* this issue, since this is by far very fatal.
> 
> One chance I'd see (as a workaround) is, to let created instanced retrieve
> its IP via dhcp, but then reconfigure /etc/network/instances to continue with
> static networking setup. However, I'd just like the dhcp thingy to get fixed.
> 
> I'm very open to any kind of helping comments, :)
> 
> So long,
> Christian.
> 
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