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[JuanFra Rodriguez Cardoso <juanfra.rodriguez.cardoso@xxxxxxxxx>]

Have you tried to increase 'rpc_response_timeout' in nova.conf (e.g. 180
seconds)?
https://bugs.launchpad.net/nova/+bug/1094226

---
JuanFra


2013/4/8 Jorge Luiz Correa <correajl@xxxxxxxxx>

> Hi all,
>
> I'm trying to launch a lot of instances simultaneously. I'm using
> Openstack 2012.2.3-0ubuntu1 installed on an ubuntu server, from
>
> deb http://ubuntu-cloud.archive.canonical.com/ubuntuprecise-updates/folsom main
>
> repository, according to the official documentation. When I try that my
> nova-compute node losts the network configurations. I'm using 1 nic with a
> bridge and FlatDhcpManager.
>
>  I've been looking for the error but I don't get none. Just my nic losts
> the IP and the instances stop to be created. A common behavior is that this
> just occurs when I try to create more then 3 instances (I'm using the
> Dashboard). If I choose to create 2 or 3, everything works fine!
>
> I'm thinking this can be a problem with NBD module. A syslog entry I could
> see is:
>
>  kernel: [179319.523389] block nbd15: Unexpected reply (ffff88080397fc48)
>
>  Thanks!
>
>
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