NRPE Memory Usage Metrics

[gmackey]

Hello,

I just converted all my Windows memory monitors from check_nt to check_nrpe in order to get accurate checks. The checks and alerts are working perfectly but I noticed that the Memory Usage metric no longer lists any of these hosts since converting them to nrpe. Is there something I can do to make sure this data is included in the Memory Usage metric?

define service {
service_description Memory Usage
check_command check_nrpe!checkmem!-a MaxWarn=80% MaxCrit=90% ShowAll type=physical!!!!!!
}

Thanks,
Greg

[gmackey]

I checked out the utils-metrics.inc.php file and I think I may have identified a bug. It tries to match on "check_mem" for NRPE which is incorrect (at least for NSClient++). The correct match would be "checkmem". Can someone take a look at the PHP code and see if this is a bug? I'm going to try making a quick edit, removing that underscore, to see what results.

Code: Select all

            } else if (preg_match("/check_nrpe/", $command) > 0) { //NRPE
                if (preg_match("/check_mem/", $command) > 0) {
                    return true;
                }

Update: That didn't seem to help. Still no memory usage metrics for the NRPE monitors...

Update 2: Okay, it seems the PHP code for this page hasn't been written for this type of monitor. I've forced $display to 1 and verified it is showing data now so I'm going to write the rest of the code to parse the data. I wonder what kind of NRPE command this code is trying to parse? I can't find a single example, at least for Windows, that matches up with check_mem and uses -c and -w.

[mcapra]

The short end of this is that the metrics component is getting a huge re-work to account for any and all performance data a bit more elegantly. Right now, it's hard-coded to target specific data sets which isn't very ideal.

I do apologize for the inconvenience. It is something the developers are aware of and are working on a solution for.

[gmackey]

Thank you for the response. I got the PHP code written and have good metrics for NRPE memory usage now. I'll look forward to the future update to the metrics component.

-Greg

[cdienger]

Hi Greg,

Glad you were able to find a work around. Are we okay to lock the thread at this point?

[gmackey]

Yes, please do. Thanks.