Re: A way to invoke multiple actions...

[Martin Pala]

Maybe you can use the port test in combination with rate control and 
exec action, for exampple:

--8<--
  check host mytomcat with address 127.0.0.1
    if failed port 8080 for 5 cycles then exec 
"/usr/local/bin/maintenance-mode.sh on" else if recovered for 10 cycles 
then exec "/usr/local/bin/maintenance-mode.sh off"
    if failed port 8080 for 20 cycles then exec "/usr/bin/monit restart 
tomcat"
    if failed port 8080 for 30 cycles then exec "/usr/bin/monit stop 
tomcat"
--8<--


Martin


Jason L. Buberel wrote:
> First, just wanted to say 'great job' to the monit developers. I've now 
> got it deployed on all of the servers behind 
> http://www.altosresearch.com/ and it has been doing a great job.
>
> As I discover more and more services I would like monit to take care of 
> for me, I ran into the following scenario that I'm not sure how to 
> configure:
>
> 1. I have an apache -> tomcat -> postgres dependency chain defined and 
> working nicely.
>
> 2. I have a script available that will switch apache into 'maintenance 
> mode' which I use when the site is down for maintenance. It simply 
> redirects all requests to a single static maintenance display 
> (http://www.altosresearch.com/maintenance/index.html).
>
> What I would like to have happen is that when the 'tomcat' process is 
> timed-out by monit (the max # of restart attempts is exceeded) that an 
> alert is sent AND a script is executed:
>
> check process tomcat with pidfile /opt/tomcat/temp/tomcat.pid
>        alert address@hidden on { timeout }
>        start program = "/etc/init.d/tomcat start"
>        stop program =  "/etc/init.d/tomcat stop"
>        if 5 restarts within 5 cycles
>             then timeout
>        if 5 restarts within 5 cycles
>             then exec "/usr/local/bin/maintenance-mode.sh on"
>        depends on postgres
>
> And in a perfect world, I would love to be able to have monit 
> automatically invoke the reversal script ('maintenance-mode.sh off') 
> when tomcat recovers (becomes monitored again).
>
> Are either of my two configuration scenarios possible? Essentially what 
> I am looking to do is have monit execute one or more scripts based on a 
> state change to a monitored service ('exec "some-script.sh" when service 
> foobar is monitored' -or- 'exec "some-script.sh" when service apache is 
> timedout').
>
> Many thanks for any suggestions,
> jason
>
>
>
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