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Hi Vish,

Thanks for your fast answer.
I tried these options on all nodes, but it didn't seems to work 
(connection refused again).
I have googled a bit more, and I saw I can load nova-api on each compute 
nodes, with only the metadata service (--enabled_apis=metadata).
This setup works well and enable HA for api so it can be a good solution.
Thanks for the help and sorry for not googling enough before asking ;)

And about nova.conf format, should I prefix options or not ?

Ben


Le 30/08/2012 00:19, Vishvananda Ishaya a écrit :
> Try:
> --metadata_host=94.xx.xx.50
> --dmz_cidr=94.xx.xx.50/32
>
> Vish
>
> On Aug 29, 2012, at 3:14 PM, Ben <ben.div at gmail.com> wrote:
>
>> Hi the list,
>>
>> I had issues with nova-scheduler, but after upgrading ubuntu packages, the problem have disapeared.
>>
>> Now, I have another well know problem : on a multinode setup, I have a connection refused when the instance tries to get metadata from nova-api :
>>
>> 2012-08-29 22:00:05,968 - util.py[WARNING]: 'http://169.254.169.254/2009-04-04/meta-data/instance-id' failed [0/120s]: url error [[Errno 111] Connection refused]
>>
>> If I watch to iptables, I can see that 169.254.169.254 is rerouted to itself (.52, the compute node) instead of the controller node (.50)
>>
>> # iptables -t nat -L -v | grep -n3 169.254.169.254
>>
>> 45-Chain nova-network-PREROUTING (1 references)
>> 46- pkts bytes target     prot opt in     out     source destination
>> 47:   17  1020 DNAT       tcp  --  any    any     anywhere 169.254.169.254      tcp dpt:http to:94.xx.xx.52:8775
>>
>> I tried these option in nova.conf but it didn't solved the problem
>> --dmz_cidr=94.xx.xx.50/32
>> --ec2_dmz_host=94.xx.xx.50
>>
>> How can I force nova-compute to reroute the metadata request on the controller node instead of itself ?
>>
>> Another non-related question : my nova.conf have its options prefixed with -- (example --multi_host=true)
>> I saw some nova.conf with no prefix, just the name of the option (example multi_host=true).
>> What is the good format ?
>>
>>
>> Thank you,
>>
>> Ben
>>
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>