NRPE: Unable to read output - Custom Plugin Script

[bolson]

And please remember to issue:

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service xinetd restart

Then run:

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/usr/local/nagios/libexec/check_nrpe -H 127.0.0.1

From the nrpe host and post the result.

Thank you!

[pmoradiya]

The correct syntax differs between nrpe.cfg (comma delimited) and /etc/xinetd.d/nrpe (space delimited)

Are the hosts delimited by a space in /etc/xinetd.d/nrpe?

Yes. hosts are delimited by space in /etc/xinetd.d/nrpe

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only_from       = 127.0.0.1 10.0.0.208

and by comma in nrpe.cfg

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allowed_hosts=127.0.0.1,10.0.0.208

[bolson]

Have you restarted the xinetd service and are you still experiencing the same issue?

[pmoradiya]

Have you restarted the xinetd service and are you still experiencing the same issue?

That is correct.

I have also tried directly using check_jvm plugin and updated my NRPE command as below:

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command[check_tomcat_heap]=/usr/bin/sudo -u tomcat7 /usr/local/nagios/libexec/check_jvm -n org.apache.catalina.startup.Bootstrap -p heap -w 1466538393 -c 1780796620

root@prod-server-1:/usr/local/nagios/libexec# /usr/local/nagios/libexec/check_nrpe -H 127.0.0.1 -c check_tomcat_heap
NRPE: Unable to read output

[pmoradiya]

Quick update..

It got resolved by adding the following line for nagios in sudoers file.

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nagios ALL=(ALL) NOPASSWD: /usr/local/nagios/libexec/

in place of..

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nagios ALL= NOPASSWD: /usr/local/nagios/libexec/

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root@prod-server-1:/usr/local/nagios/libexec# /usr/local/nagios/libexec/check_nrpe -H localhost -c check_tomcat_heap
OK 882M |max=4151836672;;; commited=2028941312;;; used=924281928;;;

Thank you so much for your support and prompt responses.

-
PM

[bolson]

Glad to hear it. Thank you for using the Nagios Support Forum!