[Openstack-operators] Multi Host flag in Havana (neutron), central network node is perfect chocking point..

Michael Chapman woppin at gmail.com
Fri Apr 11 02:23:46 UTC 2014


There was a patch adding this capability that didn't make it in before the
Icehouse deadline, the blueprint is here:

https://blueprints.launchpad.net/neutron/+spec/l3-high-availability

You can mitigate the issues for pre-specified networks using the provider
network extension, but that comes with its own set of problems.

 - Michael


On Fri, Apr 11, 2014 at 6:08 AM, Zeeshan Ali Shah <zashah at kth.se> wrote:

>
>
> Hi,
> There used to be a --multi_host  flag in nova-network . i.e. to have
> in-out traffic from compute itself. I think that was more distributed and
> non-choking model .
>
> We run a dedicated neutron node and public network goes in-out from it.
> With high traffic app this created a perfect single point of failure . And
> yes I have tested it with high traffic load.
>
> I was thinking to run L3 and l2 agent on all compute nodes .
>
> Q1. Does it makes sense ?
> 2. Has anyone done it ? We are using Havana release.
> 3 and any suggestion for above ?
> --
>
> Regards
>
> Zeeshan Ali Shah
> System Administrator - PDC HPC
> PhD researcher (IT security)
> Kungliga Tekniska Hogskolan
> +46 8 790 9115
> http://www.pdc.kth.se/members/zashah
>
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