Class not defined :'NagiosPlugin'

[ranjitw]

Hi,

We need to monitor the IO for windows servers and have found the following plugin https://exchange.nagios.org/directory/P ... at/details

Have attached the NSC.ini file to the post.

I have followed the steps mentioned in the link for which I am getting following error.

[jdalrymple]

Any reason to not use simple performance counters?

Code: Select all

define service{
        use                                     diskperfcounter
        display_name                            Physical Disk Average Queue Length
        service_description                     phys_disk_avg_queue
        check_command                           check_nrpe_nscp!-c checkcounter -a "Counter=\\PhysicalDisk(_Total)\\Avg. Disk Queue Length" MaxWarn=10 MaxCrit=20
        }

define service{
        use                                     diskperfcounter
        display_name                            Logical Disk Average Write Queue
        service_description                     logical_disk_write_queue
        check_command                           check_nrpe_nscp!-c checkcounter -a "Counter=\\LogicalDisk(_Total)\\Avg. Disk Write Queue Length" Warn=10 MaxCrit=20
        }

define service{
        use                                     diskperfcounter
        display_name                            Logical Disk Average Read Queue
        service_description                     logical_disk_read_queue
        check_command                           check_nrpe_nscp!-c checkcounter -a "Counter=\\LogicalDisk(_Total)\\Avg. Disk Read Queue Length" Warn=10 MaxCrit=20
        }

Also if you're using nsc.ini I recommend updating to a more current version.

[ranjitw]

Hi,

I am not having check_nrpe_nscp on my machine . Please suggest how to go forward. Is it not possible to resolve Class not defined :'NagiosPlugin' issue ?

[tgriep]

You can use the default check_nrpe command to run thise service checks. Try defining them as follows.

Code: Select all

define service{
        use                                     diskperfcounter
        display_name                            Physical Disk Average Queue Length
        service_description                     phys_disk_avg_queue
        check_command                           check_nrpe!-c checkcounter -a "Counter=\\PhysicalDisk(_Total)\\Avg. Disk Queue Length" MaxWarn=10 MaxCrit=20
        }

define service{
        use                                     diskperfcounter
        display_name                            Logical Disk Average Write Queue
        service_description                     logical_disk_write_queue
        check_command                           check_nrpe!-c checkcounter -a "Counter=\\LogicalDisk(_Total)\\Avg. Disk Write Queue Length" Warn=10 MaxCrit=20
        }

define service{
        use                                     diskperfcounter
        display_name                            Logical Disk Average Read Queue
        service_description                     logical_disk_read_queue
        check_command                           check_nrpe!-c checkcounter -a "Counter=\\LogicalDisk(_Total)\\Avg. Disk Read Queue Length" Warn=10 MaxCrit=20
        }

To fix the NagiosPlugin error, you will have to update the NSClient++ agent on your Windows host to a newer version. From what I found, the older version didn't come with the VBS script needed to run this plugin.

[ranjitw]

Thank you , Is there a way to mention in the command saying " Generate an alarm after taking an average of 60 mins ?"

[WillemDH]

I don't think this is possible with Nagios. You could do it clientside. This plugin http://outsideit.net/check-ms-win-disk-load/ allows you to pass the amount of samples over which an average is calculated, but you can only alert on read or write queue length.

[ssax]

Thanks Willem!

ranjit, the plugin that Willem posted is going to be your best bet, let us know if that works for you.

Thank you