Nagios Support Forum

Hi There,

I am trying to monitor weblogic application server. Although the perl command returns OK status , when executed from Unix shell. I am getting following error being displayed on Nagios web console -
Anyone got any clues where I have gone wrong?

(No output returned from plugin)


This is the configuration I have applied so far.

---- localhost.cfg ----

define service{
use local-service
host_name localhost ; The name of the host the service is associated with
service_description WEBLOGIC ; The service description
check_command check_wls!10!5!/usr/local/nagios/etc/wls_config ; The command used to monitor the service
notifications_enabled 0
}

---- commands.cfg -----

# 'check_wls' command definition
define command{
command_name check_wls
command_line /usr/local/nagios/libexec/check_wls.pl -C -L $ARG3$ -w $ARG1$ -c $ARG2$
}


---- actual user command ----

[root@HP4440-03 objects]# /usr/local/nagios/libexec/check_wls.pl -C -L /usr/local/nagios/etc/wls_config -w 90 -c 95
OK| Managed_Server=6;90;95;;


---------- Nagios web console---------

WEBLOGIC UNKNOWN 01-11-2017 15:28:40 0d 2h 37m 44s 4/4 (No output returned from plugin)

Are you running as same user when testing from the cli? It doesn't appear so from your example. You can also turn up Nagios logging to see out the plugin is being executed:

https://assets.nagios.com/downloads/nag ... gmain.html

Hi There,

Thank you for the response. This is what I see from cli-

[nagios@HP4440-03 ADF_Domain]$ /usr/local/nagios/libexec/check_wls.pl -C -L /usr/local/nagios/etc/wls_config -w 90 -c 95

OK| Managed_Server=25;90;95;;

[nagios@HP4440-03 ADF_Domain]$ id
uid=54323(nagios) gid=54325(nagios)

Regards
-Jas

This is what I see in nagios.log-

[1484550643] SERVICE ALERT: localhost;WEBLOGIC;UNKNOWN;HARD;4;(No output returned from plugin)
[1484550643] SERVICE NOTIFICATION: nagiosadmin;localhost;WEBLOGIC;UNKNOWN;notify-service-by-email;(No output returned from plugin)

Hi There,

Its working now. You were right - it was user problem.

Regards
-Jas

Glad to hear it is resolved. I am going to lock the thread. Please feel free to post again if you have you another issue. Thank you for using the Nagios forums!