Nagios Support Forum

I am running Nagios XI ver 2011 2.1 as a vm (downloaded virtual appliance from nagios.org). The host OS is cent OS 6.2
I am running nsclient++ 3.9.330 on windows clients.
nagios is reporting memory usage incorrectly (using check_xi_service_nsclient), reporting double the physical ram. It seems to be doing this on 32 and 64 bit hosts. I have been reading on it (not an uncommon problem) and cannot find a solution that will work for us.
I have tried configuring check_nrpe, but have yet to get that working either.

Any advice would be greatly appreciated as our alerting is not accurate at this time.

Thanks in advance,
Mark

With the check you describe it report ALL memory combined physical and paged.

The resolution to this is to use check_nrpe with NSClient++ checkmem found in this thread.
support.nagios.com/forum/viewtopic.php?f=7&t=5411&p=24099#p24099

I followed the instructions you linked to, but it's still not working. I can test it using the check_nrpe and it says it's fine, but it won't report actual values when they are added to the command. I get the error message CHECK_NRPE: Received 0 Bytes from daemon. Check remote server logs for error messages.

Any help would be appreciated.

Thanks,
Mark

what is the exact command you are running?

I configured a couple using the configuration wizard
$USER1$/check_nrpe -H $HOSTADDRESS$ -t 30 -c $ARG1$ $ARG2$

Then tried this ussing ssh to connect to the nagios server
/usr/local/nagios/libexec/check_nrpe -H 172.20.31.150 -c check_mem -a '-w 90 -c 98'

I tried different arguments at the end, but they all return the error posted above.

Thanks for your help!
Mark

On your windows machine:

Open the NSC.ini file and make sure you have the following line under [External Alias]:
Restart the nsclient++ service.

On your nagios server:

Test the following command in the command line:
Hope this helps.

That line was un commented in the nsc.ini file. I did add the =long after showall and restart the service
When I ran the command from the nagios server I received the same error
Check_nrpe: Received 0 bytes from the daemon

Thanks,
Mark

asurint,

can you verify if check_nrpe is working at all with the following command:
Regards,

-Yancy

That seems to work, responds seem to be doing fine.

In the modules section of the NSC.ini do you have This is required.