[Kea-users] Fail-over

Thomas Andersen than at itu.dk
Tue Apr 26 19:27:15 UTC 2016


The reason for dual dhcp server is not a matter of availability for me. The old dhcp server has been running for about 4 years rock solid. But dual server allow me to ease the upcoming updates one server at a time.

/Thomas

Sent from my Cyanogen phone

Den 26/04/2016 21.03 skrev Wlodek Wencel <wlodek at isc.org>:
Hello,
it good to hear that someone is using kea in such way and it's working!
Internally we just started to test such solution. It's not strict
failover protocol but high availability should be secured but we want
make sure.

If time allows us we will publish white paper "How to setup failover in
kea using db backend".

Regards,
W?odek Wencel
ISC QA engineer.

On 04/26/2016 08:17 PM, Thomas Andersen wrote:
> I have 2 kea with mysql lease. They are both connecting to the same
> mysqlserver though. Not local mysql.
>
> Exact same config file from a local Github instance.
>
> Br
> Thomas
>
> Sent from my Cyanogen phone
>
> Den 26/04/2016 20.04 skrev Jonis Maurin Ceara <jonis at fearp.usp.br>:
>
>     Hi again :)
>
>     I read that there's no specific function or option to make an DHCP
>     master/slave in Kea.....but it's possible to make 2 servers with
>     SAME configurations (subnet, options, etc...) and both using SAME
>     lease and host configuration database? This could cause any problem
>     or is ok to use?
>
>     This is what I'm thinking:
>
>     Server-A - MySQL and KEA (always started)
>     |
>     |
>     |
>     Master/Master MySQL replication between both servers
>     |
>     |
>     |
>     Server B - MySQL and KEA (always started)
>
>
>
>     Jonis Maurin Cear?
>     Analista de Sistemas
>     FEA-RP
>     Help Desk +55 (16) 3315-3898
>     Audiovisual +55 (16) 3315-3927
>     Desenv. Sistemas +55 (16) 3315-4485
>     Infraestrutura +55 (16) 3315-8539 / 0672
>     Atendimento Web: http://suporte.fearp.usp.br
>
>
>
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>
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