Re: using Monit do restart cron

[Martin Pala]

Hello,

the test which you have is correct to restart cron if it isn't running (crashed or was stopped).

In the case that the cron process is running, but not executing the tasks, you can add for example some cronjob, which will touch some file to signalise, that the tasks are executed, and then set monit, to check that the timestamp is updated … if the task is run every 5 minutes, you can use something like this:

--8<--

check file cron_test with path /tmp/monit_cron_test

    if timestamp > 6 minutes then exec "/usr/bin/monit restart cron"

--8<--

and the cronjob:

--8<--

*/5 * * * * /usr/bin/touch /tmp/monit_cron_test

--8<--

Regards,

Martin

On Aug 17, 2012, at 5:16 PM, "Alexandre Carlos Vilarinho de Oliveira" <address@hidden> wrote:

Hello all,

 

Is it possible to configure monit to restart CRON if it stop working for some reason?

 

Currently I´m using the following configuration to monitor it, but monit do not restart it.

 

check process cron with pidfile /var/run/cron.pid

   group system

   start program = "/etc/init.d/cron start"

   stop  program = "/etc/init.d/cron stop"

   if 5 restarts within 5 cycles then timeout

   depends on cron_rc

 

check file cron_rc with path /etc/init.d/cron

   group system

   if failed checksum then unmonitor

   if failed permission 755 then unmonitor

   if failed uid root then unmonitor

   if failed gid root then unmonitor

 

Regards

 

Atenciosamente

 

Alexandre Vilarinho 
Gerente de Engenharia de Rede IP/TI 
Tel.: (55 11) 3017-4683
Cel.: (55 11) 7757-8388
Fax: (55 11) 3017-4464
address@hidden 
www.neovia.com.br 
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