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check_nt to check_nrpe checks
Posted: Wed May 13, 2015 2:24 pm
by jkinning
I have been using the check_nt command provided by Nagios XI check_xi_service_nsclient check command to monitor Page File Usage. My check command is $USER1$/check_nt -H $HOSTADDRESS$ -s "$ARG1$" -p 12489 -v $ARG2$ $ARG3$ $ARG4$ and in $ARG2$=COUNTER and $ARG3$= -l "\\Paging File(_Total)\\% Usage","Paging File usage is %.2f %%" -w 70 -c 90. How can I get similiar results with using check_nrpe?
I am also using the same check for Server Work Queue with these $ARG2$=COUNTER $ARG3$= -l "\\Server Work Queues(0)\\Queue Length","Current work queue (an indication of processing load) is %.f " -w 4 -c 7
Finally, I also can't get services checks figured out either. Using $USER1$/check_nt -H $HOSTADDRESS$ -s "$ARG1$" -p 12489 -v $ARG2$ $ARG3$ $ARG4$ my $ARG2$=SERVICESTATE and $ARG3$= -l SepMasterService -d SHOWALL How can I get this check to work with check_nrpe?
If it isn't a big deal I'll continue using my check_nt checks if it will still be supported in the future. I just don't want to be using checks that will be unsupported in the future.
Re: check_nt to check_nrpe checks
Posted: Wed May 13, 2015 3:41 pm
by jdalrymple
check_nt will probably continue to be supported for many years to come - but we can still help you migrate if you wish. There is often additional functionality in the check_nrpe counterparts.
Page File:
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[root@localhost libexec]# ./check_nrpe -H <winhost> -c check_pagefile -a "warning=used > 70%" "critical=used > 90%"
OK: \??\C:\pagefile.sys 24.918MB (15.91GB), total 24.918MB (15.91GB)|'\??\C:\pagefile.sys'=0.02433GB;11.1372;14.31925;0;15.91028 '\??\C:\pagefile.sys %'=0%;69;89;0;100 'total'=0.02433GB;11.1372;14.31925;0;15.91028 'total %'=0%;69;89;0;100
PerfCounter:
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[root@localhost libexec]# ./check_nrpe -H <winhost> -c checkcounter -a "Counter=\\Server Work Queues(0)\\Queue Length" MaxWarn=4 MaxCrit=7
OK: \Server Work Queues(0)\Queue Length = 0|'\Server Work Queues(0)\Queue Lengthnone'=0;4;7
Services:
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[root@localhost libexec]# ./check_nrpe -H <winhost> -c check_service -a 'service=SepMasterService'
Failed to open service: SepMasterService
[root@jrd-cent65-1 libexec]# echo $?
3
The default is OK if it's running and Critical if it's not:
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[root@localhost libexec]# ./check_nrpe -H <winhost> -c check_service -a 'service=spooler'
OK: All 1 service(s) are ok.
-- Ran net stop spooler here --
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[root@localhost libexec]# ./check_nrpe -H <winhost> -c check_service -a 'service=spooler'
CRITICAL: spooler=stopped (auto), delayed ()
Re: check_nt to check_nrpe checks
Posted: Wed May 13, 2015 7:26 pm
by Box293
check_nrpe checks just allow more flexibility.
I have documented several different examples of common checks here on my website, you might find them useful.
http://sites.box293.com/nagios/guides/common-checks
Re: check_nt to check_nrpe checks
Posted: Thu May 14, 2015 6:33 am
by jkinning
Super!
Thanks for all the feedback and appreciate the link.
Re: check_nt to check_nrpe checks
Posted: Thu May 14, 2015 7:00 am
by jkinning
I tried to add the check_pagefile check but for some reason the Nagios XI is not recognizing the command correctly. If I run the check on the Nagios XI server directly it works
From the GUI Test Check:
COMMAND: /usr/local/nagios/libexec/check_nrpe -H <host> -t 30 -c check_pagefile -a "warning=used \> 70%" "critical=used \> 90%"
OUTPUT: Failed to validate filter see log for details
From the terminal on the server:
./check_nrpe -H <host> -t 30 -c check_pagefile -a "warning=used > 70%" "critical=used > 90%"
OK: \??\C:\pagefile.sys 38.723MB (2.292GB), total 38.723MB (2.292GB)|'\??\C:\pagefile.sys'=0.03781GB;1.60424;2.06259;0;2.29177 '\??\C:\pagefile.sys %'=1%;70;90;0;100 'total'=0.03781GB;1.60424;2.06259;0;2.29177 'total %'=1%;70;90;0;100
Re: check_nt to check_nrpe checks
Posted: Thu May 14, 2015 7:28 am
by jkinning
Tried the Server Work Queue check and it appears the Nagios XI Test Check Command "feature" is adding additional spaces or seeing additional spaces and placing \\ where it sees them or something.
From the GUI test:
COMMAND: /usr/local/nagios/libexec/check_nrpe -H <host> -t 30 -c checkcounter -a "Counter=\\\\Server Work Queues\(0\)\\\\Queue Length" MaxWarn=4 MaxCrit=7
OUTPUT: Failed to poll counter: PdhCollectQueryData failed: : 800007d5: No data to return.
From the terminal:
./check_nrpe -H <host> -t 30 -c checkcounter -a "Counter=\\Server Work Queues(0)\\Queue Length" MaxWarn=4 MaxCrit=7
OK: \Server Work Queues(0)\Queue Length = 0|'\Server Work Queues(0)\Queue Lengthnone'=0;4;7
Re: check_nt to check_nrpe checks
Posted: Thu May 14, 2015 8:03 am
by jkinning
I added the checks and everything works. Looks like a bug with the Test Command feature within the Nagios XI gui.
Is there a process to file a bug or check to see if this issue has already been filed?
Thanks again everyone!
Re: check_nt to check_nrpe checks
Posted: Thu May 14, 2015 9:07 am
by jdalrymple
The "Test Command" feature is not the definitive way to test a command. It unfortunately cannot be relied upon because of PHP character manipulation and also apache/nagios privilege separation. If it works for you there is nothing to worry about, and while it's nice that the test command button does work for some things - never take it as an indication that your check will definitely NOT work just because that button doesn't return proper results.
Re: check_nt to check_nrpe checks
Posted: Thu May 14, 2015 9:18 am
by jkinning
Good to know. I'll start relying on the terminal command and avoid time delay and frustrations in the future.
Thanks again.
This can be closed.