[asterisk-ha-clustering] New HA setup

[Chris Mylonas]

Hi Fred,


I suggest running a few Amazon AWS servers for a few hours at 8.5c per hour
per server and do some testing.  It's the Master Master thing you want on
the HA servers with the DBs.

MySQL slaves can only have 1 master.
You can get around this by using mysql_multi on the same host to run several
slaves (mysql servers on different PIDs & ports  i.e. 3307,3308,3309 etc.)


Hope this helps you a little bit,
Chris




On Tue, Nov 3, 2009 at 8:49 AM, Frederic Jean <makafre at gmail.com> wrote:

>
> Hello all, I just joined the mailing list.
>
> I need to setup a HA * solution with 2 ultramonkey servers, 5 * servers and
> a realtime mysql data repository.
> It's my first time at doing such a setup after several years playing with
> Asterisk, so this is what I figured out
> up to now;
>
> - One master database is setup on its own server and all writing (inserts
> and updates) operations are done through it.
> - Each Asterisk server would need a local slave mysql database for all read
> statements.
> - Database replication would occur for each * slave on a regular interval.
> - Setup of a DUNDi lookup server (as in JR Richardson's "Using DUNDi with a
> cluster of Asterisk servers" paper).
>
> I really want to make sure that there is no SPOF in the solution.
>
> I am however not feeling confident about this database distribution, is
> that the way to go? How to add a hot/cold standby mysql server?
> Does this solution make sense? any suggestions or tips before going
> further?
>
> Best regards,
> Fred
>
>
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-- 
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Chris Mylonas

Web Systems Administrator
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College Of Fine Arts
University of NSW
www.omnium.net.au

Communications, Internetworking, Software Design & Prototyping
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