QUESTION: check_http and multiple instances of apache

[jrmartin]

Greetings,
I have a server with several virtual interfaces. Each interface is tied to an apache instance. If I want to monitor them with nagios, would I have to create a check_http command for each individual interface? Also, this is being performed by check_nrpe
i.e.
command[check_http].....
command[check_http_vnic1]...
command[check_http_vnic2]...
etc...
I am only interested that apache is running and responding but don't want to do a website check as the front end is load balanced and could either go to two different servers. So I need to ensure that I am checking on each server that the service is running.

Any advice on the best way to accomplish this is appreciated. Thanks in advance.,

Jeff

[nscott]

You'll have to use NRPE for sure with check_procs and use the -C flag which will cause check_procs to look for processes started using the EXACT -C arguments, so to test to see if Nagios was started with the config in /etc/nagios.cfg rather than /usr/local/nagios/etc/nagios.cfg we would enter

check_procs -C 'nagios -c /etc/nagios.cfg'

[msanbrug]

I have to monitoring process ora_pmon_sinamp. The process is running in the machine (HPUX):

oracle 28067 1 0 02:48:37 ? 0:03 ora_pmon_sinamp


but, when I executed command:

/opt/iexpress/nagios/libexec/check_procs -C 'ora_pmon_sinamp'
PROCS OK: 0 processes with command name 'ora_pmon_sinamp'

How I can monitoring this process?

Regards.

[scottwilkerson]

I have to monitoring process ora_pmon_sinamp. The process is running in the machine (HPUX):

oracle 28067 1 0 02:48:37 ? 0:03 ora_pmon_sinamp


but, when I executed command:

/opt/iexpress/nagios/libexec/check_procs -C 'ora_pmon_sinamp'
PROCS OK: 0 processes with command name 'ora_pmon_sinamp'

How I can monitoring this process?

Regards.

Are you executing this command from the same machine as the process in running?

[lmiltchev]

Type in terminal (on the target machine):

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# ps -ef | grep ora_pmon_sinamp

to make sure the process is running.

Next, edit your "check_local_procs" command definition in the "commands.cfg" file:

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# vi /usr/local/nagios/etc/commands.cfg

Change it from: "$USER1$/check_procs -w $ARG1$ -c $ARG2$ -s $ARG3$" to "$USER1$/check_procs -w $ARG1$ -c $ARG2$ -a $ARG3$"

Check if you can monitor this process locally:

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# /usr/local/nagios/libexec/check_procs -a ora_pmon_sinamp

If you succeed, you can type in terminal (on your Nagios server):

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# /usr/local/nagios/libexec/check_nrpe -H <your_target_machine_IP_address> -t 30 -c check_procs -a '-a ora_pmon_sinamp'

You can also add arguments for warning and critical, for example:

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# /usr/local/nagios/libexec/check_nrpe -H <your_target_machine_IP_address> -t 30 -c check_procs -a '-w 5 -c 10 -a ora_pmon_sinamp'

Once you make it work from the command line, you can deal with the web interface. This document may help you with this:

http://assets.nagios.com/downloads/nagi ... ios_XI.pdf

[msanbrug]

I probed this, but appear process is down. I see that in HPUX, not correctly ps:

When I do ps -el:

1401 S 30208 1023 1 0 154 20 e0040100009c4380 25741 e00000019b2292e8 ? 0:02 oracle

If i do export UNIX95=1

1401 S 30208 11276 1 0 154 20 e000000198924c80 25689 e000000144cee080 ? 00:00:00 ora_pmon_sinamp

but if i do:

command[check_procs_pmon_sinamp]=export UNIX95=1;/opt/iexpress/nagios/libexec/check_procs -C ora_pmon_sinamp
PROCS OK: 0 processes with command name 'ora_pmon_sinamp'


If I defined in nrpe.cfg:
export UNIX95=1
command[check_procs_pmon_sinamp]=/opt/iexpress/nagios/libexec/check_procs -C ora_pmon_sinamp

Appear this:

PROCS OK: 0 processes with command name 'ora_pmon_sinamp'

Any idea?

[lmiltchev]

Try this command:

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command[check_procs_pmon_sinamp]= UNIX95= /opt/iexpress/nagios/libexec/check_procs -C ora_pmon_sinamp

or

Code: Select all

command[check_procs_pmon_sinamp]= UNIX95=1 /opt/iexpress/nagios/libexec/check_procs -C ora_pmon_sinamp

Let me know if this works.

[msanbrug]

I probed this but is not correctly:

/opt/iexpress/nagios/libexec/check_procs -C ora_pmon_sinamp
PROCS OK: 0 processes with command name 'ora_pmon_sinamp'

UNIX95=1 /opt/iexpress/nagios/libexec/check_procs -C ora_pmon_sinamp
PROCS OK: 0 processes with command name 'ora_pmon_sinamp'

Any idea?

Regards.

[msanbrug]

Excuse me, I was wrong when he wrote.I probed two options:

UNIX95= /opt/iexpress/nagios/libexec/check_procs -C ora_pmon_sinamp
UNIX95=1 /opt/iexpress/nagios/libexec/check_procs -C ora_pmon_sinamp

And the output:

PROCS OK: 0 processes with command name 'ora_pmon_sinamp'

I add too in nrpe.cfg, but the output is the same.


Thanks,

[lmiltchev]

Is this process running? Can you run a test against a different process, that is running for sure?