[Rdo-list] Horizon in fresh install of Havana not working

[Pádraig Brady]

On 10/25/2013 06:18 PM, Diogo Vieira wrote:
> Hi!
> 
> I made a clean install of Havana on a machine and by the time it finished installing, I was unable to use the dashboard as a message saying:
> 
>> Something went wrong!
>>
>> An unexpected error has occurred. Try refreshing the page. If that doesn't help, contact your local administrator.
> 
> I'm now trying to find what the problem is and I found the status of the dashboard in openstack-status is 500 and that neutron-dhcp-agent failed to start with this relevant part of the dhcp-agent.log:
> 
>> 2013-10-25 18:00:15.550 2165 INFO neutron.common.config [-] Logging enabled!
>> 2013-10-25 18:00:15.551 2165 ERROR neutron.common.legacy [-] Skipping unknown group key: firewall_driver
>> 2013-10-25 18:00:15.585 2165 WARNING neutron.agent.linux.dhcp [-] Unable to determine dnsmasq version. Please ensure that its version is 2.59 or above!
>> 2013-10-25 18:00:15.658 2165 ERROR neutron.openstack.common.threadgroup [-] [Errno 22] Invalid argument

> I seem to have read somewhere that a 500 status in horizon may be caused by one of the others components failing. So I'm assuming this could be my problem.
> 
> Furthermore, I found that snippet may be the relevant part of the logs because I found some bug reports indicating that this could be a problem with dnsmasq. The problem is that I have version 2.66 of dnsmasq installed in the system.

Right http://pad.lv/1212401

That weird error happens when dnsmasq is not installed.

Where did you get dnsmasq 2.66 from?
Is the dnsmasq service running?
Note dnsmasq-2.48 may seem too old giben the above message,
but is patched to have the required functionality.

thanks,
Pádraig.