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Re: Configuring a warning using a shell script

From: Martin Vaner
Subject: Re: Configuring a warning using a shell script
Date: Sat, 03 May 2014 00:32:24 +0200
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it seems that you have wrong config file. I am using the number to check the log file if it contains some Errors.
I am using this combination and it is working.

My little easy bash script is:


errorcount=`tail -n 10 contego.log | grep "Error" | wc -l`
if [ $errorcount -gt 0 ]; then
exit $?
echo $errorcount
exit 0

And /etc/monit/monitrc is contain these lines:

check program Contego_Errors with path /mnt/vouchers/
    if status != 0 then alert

Seems you have something wrong in monitrc file or in the config file in conf.d

By the way, i had also a little mistake in the IF part of my bash script and i spent a lot of time to find it. But found.



On 2.5.2014 23:52, Jason Levitt wrote:
Hi Martin,

 There are no notices in the monit log file, and, as I mentioned, the
M/Monit console shows
that everythiing is "ok" (I guess).  If monit couldn't execute it,
wouldn't it put something in the log

  Mode of the shell script is 777 and I've executed it successfully as
both a regular user and root.
  And the first line of the script is  #!/bin/bash


  How does that affect the alerting? I've been sitting here for an
hour or more. Shouldn't
I see some warnings in M/Monit?


On Fri, May 2, 2014 at 4:17 PM, Martin Vaner <address@hidden> wrote:
Hi Jason,

Are you sure that Monit is able tonrun the script? Can you please provide
the source of your script?

I had an issue like this before few months ago.


On 2. května 2014 23:01:02 CEST, Jason Levitt <address@hidden> wrote:
I'm trying to configure a simple warning using a bash script.
I used the example at the bottom of this page as a starting

My bash script outputs an exit status:

exit $number

I've run the script manually (it's mode 777), and it outputs nothing, but
has an exit status that is non-zero.

Then in my monitrc file,  I have:

check program CheckQueueSize with path "/var/opt/"
     if status > 5 then alert

In M/Monit, it shows Program "CheckQueueSize" with status "Status ok" with
0 Events and the light is green.

However, when I run the shell script manually, it always outputs numbers
greater than 5.

Is the shell script not being executed?  Or is M/Monit just not warning
me? I'm confused.


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