Service Status: (No output returned from plugin)

[logan428]

I am getting this error from a service in NagiosXI to monitor a remote host logfile usng the plugin check_logfiles with nrpe. When I define the same service using localhost(NagiosXI server) and without nrpe, the monitoring is fine.
The plugin is installed on both the NagiosXI server and the remote host and is in directory /usr/local/nagios/libexec. The plugin tested OK on both servers when run from command line without using nrpe.

Below is my command and service definition on NagiosXI to monitor the remote host logfile. I am using v2012r2.2 and both of my servers are rhel 6.4:
Commands Definition:
Command Name = check_logfiles
Command Line = $USER1$/check_logfiles $ARG1$
Command Type = check_command

Service Management Definition:
Config Name = test2
Description= test_logfile2
check_command = check_nrpe
*Command View = $USER1$/check_nrpe -H $HOSTADDRESS$ -c $ARG1$
Arg1 = check_logfiles --config=/app/nagiosxi/config/logfiles/alerts/alerts1.cfg
Manage Host = fqdn of my remote host
Template = generic-service
Check Interval = 1
Check Period = 24x7
Notification Period = 24x7

Any assistance would be appreciated. I am trying to evaluate NagiosXI for potential purchase and use with my company. Thanks

[scottwilkerson]

On remote system you will need to add the following to the nrpe.cfg

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command[check_logfiles]=/usr/local/nagios/libexec/check_logfiles $ARG1$

And then restart the nrpe daemon

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service xinetd restart

On the XI server change $ARG1$ for the service to

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check_logfiles -a '--config=/app/nagiosxi/config/logfiles/alerts/alerts1.cfg'

[logan428]

I already have the command definition in nrpe.cfg, and ffter restarting xinetd and modifying the $ARG1$ in the Service Config to
check_logfiles -a '--config=/app/nagiosxi/config/logfiles/alerts/alerts1.cfg' ...
I now get the error below:
UNKNOWN - can not load configuration file --config=/app/nagiosxi/config/logfiles/alerts/alerts1.cfg

*is the -a option a nrpe or check_logfiles option?
*Are the single quotes to be included in the definition?
*my check command value is still nrpe, correct?

Thanks

[yancy]

*is the -a option a nrpe or check_logfiles option?

the -a options is nrpe command argument. When NRPE executes the command everything after -a is added as an argument on the command line.


If you're running from the command line, it would be

Code: Select all

check_logfiles  '--config=/app/nagiosxi/config/logfiles/alerts/alerts1.cfg'

can you test that from the command line? Can you post the contents of alerts1.cfg as that seems where the issue is.

*Are the single quotes to be included in the definition?

Yes, the single quotes ensure any spaces in the argument are used as spaces in the check command argument (not spaces in nrpe command)

*my check command value is still nrpe, correct?

Not sure what you're asking exactly...

[yancy]

The issue is the your dcdiag is not showing info about fsmo.

can you run the following

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dcdiag /test:fsmocheck

and post the output

-Yancy

[logan428]

The issue is the your dcdiag is not showing info about fsmo.

can you run the following

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dcdiag /test:fsmocheck

and post the output

-Yancy

Where is this command. I am usinng RHEL 6.4 servers. Do I run this from my NagiosXI server or the remote host?

[logan428]

*is the -a option a nrpe or check_logfiles option?

the -a options is nrpe command argument. When NRPE executes the command everything after -a is added as an argument on the command line.

Reason I asked is on your first post, looked like a check_logfiles option. If this is a nrpe option, where should I put this option in the Nagios XI Service GUI?
The nrpe command view looks like this:
$USER1$/check_nrpe -H $HOSTADDRESS$ -c $ARG1$

The $ARG$ is being used for check_logfiles. Can you tell me exactly what should be in the Service definition:
Check Command = ? (currently check_nrpe)
$ARG1$ = ? (currently check_logfiles -a '--config=/app/nagiosxi/config/logfiles/alerts/alerts1.cfg')
I also tried without the -a and did not work


If you're running from the command line, it would be

Code: Select all

check_logfiles  '--config=/app/nagiosxi/config/logfiles/alerts/alerts1.cfg'

can you test that from the command line? Can you post the contents of alerts1.cfg as that seems where the issue is.
I run check_logfiles from command line and got the response I expected:
/usr/local/nagios/libexec/check_logfiles --config=/app/nagiosxi/config/logfiles/alerts/alerts1.cfg
OK - no errors or warnings|VPN_lines=0 VPN_warnings=0 VPN_criticals=0 VPN_unknowns=0

* I have also tested with errors on the logfile and check_logfiles detected it.

Contents of alerts1.cfg:
$scriptpath = '/usr/local/nagios/libexec:/usr/local/nagios/bin';
@searches = (
{
tag => 'VPN',
logfile => '/var/em/emalerts.log',
#rotation => 'HPUX',
criticalpatterns => [
'.*LINK_DOWN',
'.*error',
'.*problem'
],
warningpatterns => [
'.*Not Available',
],
#options => 'protocol,count'
#options => 'script',
#script => 'send_nsca',
#scriptparams => '-H $CL_NSCA_HOST_ADDRESS$ -p $CL_NSCA_PORT$ -to $CL_NSCA_TO_SEC$ -c $CL_NSCA_CONFIG_FILE$',
#scriptstdin => '$CL_HOSTNAME$\t$CL_SERVICEDESC$\t CL_SERVICESTATEID$\t$CL_SERVICEOUTPUT$\n',
},
);

*Are the single quotes to be included in the definition?

Yes, the single quotes ensure any spaces in the argument are used as spaces in the check command argument (not spaces in nrpe command)

*my check command value is still nrpe, correct?

Not sure what you're asking exactly...

This is in the NagiosXI Service definiiton...see posts aboove

[scottwilkerson]

I am a bit confused what I you are trying to do.

disregarding Nagios for a minute, what are you trying to check with check_logfile? Have you been able to execute the command you want with this plugin on the windows server? If so what does the Windows command look like?

[logan428]

Firstly, I am running this on RHEL 6.4 and would like to monitor logfiles using the plugin check_logfiles. As I stated in my previous posts, It works with NagiosXI when monitoring logfile on local server(XI server) but not when using with NRPE to monitor logile on remote hosts.
Here is the command line and output:
[root@app-lab01 libexec]# /usr/local/nagios/libexec/check_logfiles --config /app/nagiosxi/config/logfiles/emalerts/emalerts1.cfg
OK - no errors or warnings|VPN_lines=0 VPN_warnings=0 VPN_criticals=0 VPN_unknowns=0

[sreinhardt]

Is that command being run via cli on the remote system or the nagios system? Along the same lines, is the /app/nagiosxi/config/logfiles/emalerts/emalerts1.cfg on the remote system and accessible via the nagios user?