openstack team mailing list archive

[Vishvananda Ishaya <vishvananda@xxxxxxxxx>]

fixed range is likely fine. I suspect you created your network with a 10.0.0.0/24 though. It might be a bit tricky to switch to a larger range now. You may have to create the rest of your fixed ips manually in the db associated with the same network and then change the cidr entry on the network in the db to 10.0.0.0/16. You also might have to manually destroy the bridges and let nova-network recreate them.

Vish

On Sep 6, 2012, at 7:36 AM, Jonathan Proulx <jon@xxxxxxxxxxxxx> wrote:

> Hi All,
> 
> my stack stopped launching instances last night & I've been chasing my
> tail for a while but I think it think's it's out of fixed IPs.
> 
> the system is Essex as packages on Ubuntu 12.04 using FlatDHCP, with
> multihost and a fixed range or 10.0.0.0/16
> 
> --multi_host=True
> --public_interface=eth0
> --fixed_range=10.0.0.0/16
> --flat_interface=eth1
> --flat_network_bridge=br100
> --network_manager=nova.network.manager.FlatDHCPManager
> 
> the error I'm seeing for all attempts at launching is:
> 
> 2012-09-06 10:16:43 TRACE nova.compute.manager [instance:
> d5aa2d4b-76db-43b7-a655-24edeb7fc495]   File
> "/usr/lib/python2.7/dist-packages/nova/virt/libvirt/vif.py", line 69,
> in _get_configurations
> 2012-09-06 10:16:43 TRACE nova.compute.manager [instance:
> d5aa2d4b-76db-43b7-a655-24edeb7fc495]     'ip_address':
> mapping['ips'][0]['ip'],
> 2012-09-06 10:16:43 TRACE nova.compute.manager [instance:
> d5aa2d4b-76db-43b7-a655-24edeb7fc495] IndexError: list index out of
> range
> 
> and I just noticed that the flat network interfaces are getting /24
> netmasks NOT  /16 this combined with 210 running instances and forty
> some compute nodes make me think it's out of addresses.
> 
> is my syntax for the fixed range wrong, doc give 10.0.0.0/8 as the
> example and default so I don't think so.  I'm fine with reverting to
> that, don't mind more addresses, but I would like to understand if
> this is actually my problem and even if it's not why it's not giving
> the mask I asked for.
> 
> -Jon
> 
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