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Nagios 3.2.0 apache critical status
Posted: Tue Feb 17, 2015 4:32 am
by mike-stokkel
hi,
At the moment im working with Nagios 3.2.0 and i have check_apache plugin running on several servers. But there is something weird going on, nagios is telling me that the apache is running but it is in critical state. I get this problem on the servers that are working on Ubuntu 12.04/14.04, the only server that has not got this problem are the servers that are running on Ubuntu 10.4. Personally, I think it's a bug in nagios, because on both the server running 12.04/14.04 & 10.4 are running the same plugin. Is this a common problem that an older Nagios version display Critical errors while it's running?
Does anyone knows what is going on?
Here is the code I use for the plugin:
Code: Select all
#!/bin/bash
#Check if apache2 is running
running="Apache is running"
apache=$(service apache2 status)
if [ "${apache::17}" == "$running" ];then
echo "$apache"
exit 0
else
echo "$apache"
exit 2
fi
Re: Nagios 3.2.0 apache critical status
Posted: Tue Feb 17, 2015 11:34 am
by abrist
My guess is that it is not matching the string. Case issues maybe?
Can you post the output of:
Re: Nagios 3.2.0 apache critical status
Posted: Wed Feb 18, 2015 5:49 am
by mike-stokkel
abrist wrote:My guess is that it is not matching the string. Case issues maybe?
Can you post the output of:
* apache2 is running
Re: Nagios 3.2.0 apache critical status
Posted: Wed Feb 18, 2015 11:32 am
by abrist
That would be the issue. The string your script is checking for is:
Yet the command it runs outputs the following:
Change you script, specifically the $running variable:
Save out and try running the check again.
Re: Nagios 3.2.0 apache critical status
Posted: Thu Feb 19, 2015 3:52 am
by mike-stokkel
abrist wrote:That would be the issue. The string your script is checking for is:
Yet the command it runs outputs the following:
Change you script, specifically the $running variable:
Save out and try running the check again.
Nope, it still doesn't work
Re: Nagios 3.2.0 apache critical status
Posted: Thu Feb 19, 2015 1:35 pm
by tgriep
How about changing the script to the following?
Code: Select all
#!/bin/bash
#Check if apache2 is running
apache=$(service apache2 status)
if [[ $apache == *"running"* ]];then
echo "$apache"
exit 0
else
echo "$apache"
exit 2
fi
Re: Nagios 3.2.0 apache critical status
Posted: Thu Feb 19, 2015 1:44 pm
by jdalrymple
Alternatively if you want to have a more future-proof solution that won't require your custom script to be moved with your installation you could use official plugins. Something like this should work for you:
Code: Select all
[jdalrymple@localhost libexec]$ ./negate -c OK -s ./check_procs -a httpd -c 1
PROCS OK: 11 processes with args 'httpd' | procs=11;;1;0;
Re: Nagios 3.2.0 apache critical status
Posted: Fri Feb 20, 2015 3:47 am
by mike-stokkel
tgriep wrote:How about changing the script to the following?
Code: Select all
#!/bin/bash
#Check if apache2 is running
apache=$(service apache2 status)
if [[ $apache == *"running"* ]];then
echo "$apache"
exit 0
else
echo "$apache"
exit 2
fi
im getting the same error
apache CRITICAL 2015-02-20 09:39:31 31d 0h 30m 43s 4/4 Apache2 is running (pid 4186).
EDIT: OWH WAIT!! IT DOES WORK!!! WASNT LOOKING AT THE RIGHT SERVER
THANKS!
Re: Nagios 3.2.0 apache critical status
Posted: Fri Feb 20, 2015 1:43 pm
by ssax
mike-stokkel, that's great news, is it ok if we mark this as resolved and lock the topic?
Re: Nagios 3.2.0 apache critical status
Posted: Mon Feb 23, 2015 5:19 am
by mike-stokkel
ssax wrote:mike-stokkel, that's great news, is it ok if we mark this as resolved and lock the topic?
sure!