Nagios Support Forum

Posted: **Fri Jul 14, 2017 11:15 am**

Hello,

I am trying to monitor DB instances running on HP-UNIX server using check_oracle.sh plugin.
User nagios is part of dba group.
plugin is working perfectly when i execute it directly, but it doesn't run when called using check_nrpe.

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# ./check_nrpe -H localhost -c check_oracle_db
opspb10p Database is DOWN
usplops1:<root>[/usr/local/nagios/libexec]
# ./check_ora.sh --db 'opspb10p'
opspb10p OK - 1 PMON process(es) running

I have tried running check_nrpe - from Nagios user/root user/ DB user but everytime i get same output.

NRPE.CFG

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TRIED:
command[check_oracle_db]=/usr/bin/env LD_LIBRARY_PATH=/app4p/oracle/product/10.2/lib /usr/local/nagios/libexec/check_ora.sh --db 'opspb10p'
command[check_oracle_db]=/usr/local/nagios/libexec/check_ora.sh --db 'opspb10p'
Output:
opspb10p Database is DOWN

command[check_oracle_db]=/usr/local/nagios/libexec/check_ora.sh --db 'opspb10p'
Output:Unable to read output

Kindly help!

Posted: **Fri Jul 14, 2017 12:11 pm**

It seems like that the plugin is working as expected, when you run it as root:

# ./check_ora.sh --db 'opspb10p'
opspb10p OK - 1 PMON process(es) running

Before troubleshooting NRPE, can you verify that you can run the same plugin as nagios user?

Code: Select all

su - nagios
/usr/local/nagios/libexec/check_ora.sh --db 'opspb10p'

Posted: **Sat Jul 15, 2017 11:56 am**

Yes...with nagios user, plugins returns the same output.

But only when i run using nrpe irrespective of any user, it fails.

I would also like to highlight here that there are other common plugins such as CPU/DISK/MEMORY which are running as usual under check_nrpe.

Posted: **Sun Jul 16, 2017 4:42 pm**

If I remember correctly the default NRPE Install on HPUX runs as the NRPE user. Is that still true? What user does NRPE run as?

Steve B

Posted: **Mon Jul 17, 2017 12:15 pm**

There is no NRPE user on this host HPUX (11.11)

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NRPE_USER = nagios
NRPE v2.12

Kindly suggest the possible solution to this issue.

Posted: **Mon Jul 17, 2017 12:35 pm**

Can you post the plugin from your HPUX system so we can view it?

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/usr/local/nagios/libexec/check_ora.sh

Then run the following commands and post the output.

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env
su - nagios
env

Posted: **Mon Jul 17, 2017 12:54 pm**

On my HPUX, I run nrpe via the inetd.

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tail -3 /etc/inetd.conf

# Nagios NRPE agent
nrpe    stream  tcp     nowait  nrpe  /opt/nrpe/bin/nrpe nrpe -i -c /opt/nrpe/etc/nrpe.cfg

and from the nrpe.cfg file I see

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cat /opt/nrpe/etc/nrpe.cfg

# NRPE USER
# This determines the effective user that the NRPE daemon should run as.
# You can either supply a username or a UID.
#
# NOTE: This option is ignored if NRPE is running under either inetd or xinetd
nrpe_user=nagios

So, even though one cfg file says nagios, that is ignored if using inetd.
That is why I asked about the user that runs. Just to cover all the turf.

Good Luck...
Steve B

Posted: **Mon Jul 17, 2017 4:08 pm**

Please attach your /usr/local/nagios/libexec/check_ora.sh so that we can review it, the majority of the time it's because of path issues.

Thank you

Nagios Support Forum

Check_oracle | NRPE issue

Check_oracle | NRPE issue

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