Re: would like a broadcast message when pid changes..

[Martin Pala]

Hi,

monit executes the "exec" argument directly - it doesn't execute it via shell, so the shell-like syntax (pipe, etc.) doesn't work.

If you want to use shell, just wrap the exec command like this:

--8<--

if changed pid then exec "/bin/bash -c '/bin/echo logger | /usr/bin/wall'"

--8<--

Regards,

Martin

On Mar 22, 2012, at 8:05 PM, Tom H wrote:

On 03/22/2012 06:52 PM, Tom H wrote:

Hi,

I am using monit on CentOs 6.2 instances, but I cannot get it to broadcast a message when a service is restarted.

Any suggestions on what am I doing wrong here...

The line for the pid check is a bit odd from the httpd page;

Pid       "If changed 1 times within 1 cycle(s) then alertexec '/bin/echo logger | /usr/bin/wall' timeout 0 cycle(s)"


and the log file shows that monit sees the pid change...

[PDT Mar 22 11:59:58] info     : Reinitializing monit - Control file '/etc/monit.conf'
[PDT Mar 22 11:59:58] info     : Shutting down monit HTTP server
[PDT Mar 22 11:59:58] info     : monit HTTP server stopped
[PDT Mar 22 11:59:58] info     : Starting monit HTTP server at [localhost:2812]
[PDT Mar 22 11:59:58] info     : monit HTTP server started
[PDT Mar 22 11:59:58] info     : 'server-64634.novalocal' Monit reloaded
[PDT Mar 22 12:00:38] error    : 'munin-node' process PID changed to 548
[PDT Mar 22 12:00:38] info     : 'munin-node' exec: /bin/echo
[PDT Mar 22 12:00:58] info     : 'munin-node' process PID has not changed since last cycle
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