I'm pleased to see that there are some other mysql-proxy player here.
First I really would like to know how mysql-proxy can reconfigure itself. I
tried to do it, but could achieve that. I really would like to know which
version or svn revision you use, because the only version that worked for me
was 0.6.0. Later version just couldn't distinct when a mysql node was down.

Regarding your point when you stop mysql. First why would you stop the
master? If the master is stopped like you mentionned, I thought scalr would
detect that the server was not responding after X seconds. In this case, the
slave would become master and scalr would start a new slave based on this
master.

Maybe we could talk about your mysql-proxy install separately, because my
installation is based on a particular instance that hosts mysql-proxy. And I
need to start/stop the proxy every time my farm is reconfigured. Any help on
that is greatly appreciated.


On Mon, Jun 1, 2009 at 5:35 PM, Joe <[email protected]> wrote:

>
> Ho to all, I'm new on scalr.
>
> I'm still playing with hosts, and I build some farms.
> The last farm, is based on www,app and mysql. I installed also on app
> mysql-proxy, because my application is unable to split the read/write
> on several db, so this was "the" solution.
>
> Looks like that everything works fine, but I discover some issues: for
> example, if I start 2 or more mysql the first is master, the second
> and others are slaves. Mysql-proxy feel all the mysql* hosts and
> thanks to the /etc/aws/hosts files can reconfigure himself. But what's
> about if the master falls? Thanks the smart system, the slave become
> master, and mysql-proxy reconfigure himself.
>
> But... What's if I manally stop the mysql master (mysql stop, like a
> mysql crash)? The application hangs. There is nothing that tell "Hey,
> I'm live but I dont' work!".
>
> Hope that this can be useful to someone.
>
> Regards,
> JS
>
> >
>

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