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You can run as many as you want, generally an haproxy is used in front of
them to balance load across neutron servers.

Also, keep in mind, that the db backend is a single mysql, you can also
distribute that with galera.

That is the configuration you will get by default when you deploy in HA
with RDO/TripleO or OSP/Director.

On Wed, Mar 21, 2018 at 3:34 AM Kevin Benton <kevin at benton.pub> wrote:

> You can run as many neutron server processes as you want in an
> active/active setup.
>
> On Tue, Mar 20, 2018, 18:35 Frank Wang <wangpeihuixyz at 126.com> wrote:
>
>> Hi All,
>>      As far as I know, neutron-server only can be a single node, In order
>> to improve the reliability of the system, Does it support the main backup
>> or active/active redundancy? Any comment would be appreciated.
>>
>> Thanks,
>>
>>
>>
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