[Nagiosplug-help] check_jmx plugin

[Andy Shellam]

Hi Greg,

Your definitions are slightly out - you don't need to pass the -U, -A, 
-K etc arguments into the check_command in the service definition as 
you've already got these in the command's command_line definition - just 
pass the values for the $ARGx$ arguments, separated by !.

Your command definition is correct, however your service's check_command 
line needs to be re-written as:

check_command   
check_jmx!service:jmx:rmi:///jndi/rmi://xxx.xxx.xxx.xxx:1616/jmxrmi!java.lang:type=Memory!HeapMemoryUsage!used!975500000!990000000

You see - all the values in the check_command line (separated by !) get 
substituted into the command's command_line argument, so with this 
example you wind up with Nagios executing:

/usr/local/nagios/libexec/check_jmx -U 
service:jmx:rmi:///jndi/rmi://xxx.xxx.xxx.xxx:1616/jmxrmi -O 
java.lang:type=Memory -A HeapMemoryUsage -K used -w 975500000 -c 990000000

(assuming $USER1$ resolves to /usr/local/nagios/libexec.)

Hope this helps,

Andy

Greg Bessette wrote:
> I am trying to use the check_jmx plugin to monitor Java memory usage.
>  I built the check command config as:
>
> define command{
>     command_name    check_jmx
>     command_line    $USER1$/check_jmx -U $ARG1$ -O $ARG2$ -A $ARG3$ -K
> $ARG4$ -w $ARG5$ -c $ARG6$
>     }
>
> The service definition reads like this:
>
> define service{
>         use                                  local-service         ;
> Name of service template to use
>         host_name                       server1
>         service_description            JMX
>     check_command                  check_jmx! -U
> service:jmx:rmi:///jndi/rmi://xxx.xxx.xxx.xxx:1616/jmxrmi -O
> java.lang:type=Memory -A HeapMemoryUsage -K used -w 975500000 -c
> 990000000
>     }
>
> If I run the above command with out the ! on the command line, I
> receive the correct values.
>
> Here is the image from the Nagios service page showing the error
>
> Current Status:
>   UNKNOWN
>  (for 0d 1h 42m 27s)  (Has been acknowledged)
> Status Information:JMX UNKNOWN 18 Usage: check_jmx -help
> Performance Data:
> Current Attempt:4/4  (HARD state)
> Last Check Time:09-30-2008 14:20:41
> Check Type:ACTIVE
> Check Latency / Duration:0.129 / 0.099 seconds
> Next Scheduled Check:  09-30-2008 14:25:41
> Last State Change:09-30-2008 12:43:01
> Last Notification:N/A (notification 1)
> Is This Service Flapping?
>   NO
>  (0.00% state change)
> In Scheduled Downtime?
>   NO
> Last Update:09-30-2008 14:25:23  ( 0d 0h 0m 5s ago)
> Active Checks:
>   ENABLED
>
>
> Any help would be appreciated.
>
> Greg
>
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