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The neutron metadata agent is stateless. It takes requests from the
metadata proxies running in the router namespaces and moves the
requests on to the nova server. If you're using HA routers, start the
neutron-metadata-agent on every machine the L3 agent runs, and just
make sure that the metadata-agent is restarted in case it crashes and
you're done. Nothing else you need to do.

On Fri, Dec 11, 2015 at 3:24 PM, Fabrizio Soppelsa
<fsoppelsa at mirantis.com> wrote:
>
> On Dec 10, 2015, at 12:56 AM, Alvise Dorigo <alvise.dorigo at pd.infn.it>
> wrote:
>
> So my question is: is there any progress on this topic ? is there a way
> (something like a cronjob script) to make the metadata-agent redundant
> without involving the clustering software Pacemaker/Corosync ?
>
>
> Reason for such a dirty solution instead of rely onto pacemaker?
>
> I’m not aware of such initiatives - just checked the blueprints in Neutron
> and I found no relevant. I can suggest to file a proposal to the
> correspondent launchpad page, by elaborating your idea.
>
> F.
>
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