Re: Changing one process based on another (HA setup)

[Martin Pala]

Hi,

you can try the setup described by Alexey Zilber:
http://lists.gnu.org/archive/html/monit-general/2007-01/msg00006.html

--8<--
check process apache
        with pidfile /var/run/httpd.pid
        start program = "/etc/init.d/httpd start"
        stop program  = "/etc/init.d/httpd stop"
        if failed host 192.168.1.25 port 80 for 3 times within 5 cycles 
then exec "/usr/lib/heartbeat/hb_standby"
        if failed host 192.168.1.26 port 80 for 3 times within 5 cycles 
then exec "/usr/lib/heartbeat/hb_standby"
        mode manual
group node2
--8<--


Martin


Jason wrote:
> I am very impressed with monit, but I seem to be running into an issue 
> configuring it with high availability.  My ideal scenario would be:
>
>    1. Start & monitor the high availability heartbeat process
>    2. Start & monitor my daemon process X
>    3. If X restarts more than 3 times within 5 cycles then
>         timeout or stop process X and /etc/init.d/heartbeat stop
>         (to fail over to my secondary system)
>
> I have tried using "if changed pid...then" but that apparently does not 
> count if the pid changes due to monit, and of course, discovered that 
> only "timeout" works with "if 3 restarts within 5 cycles then..."
>
> Can anyone provide a method to accomplish this?
> Thank you very much,
>
> -Jason
>
>
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