NRPE Timeout

[axj0187]

NRPE agent has been running fine for weeks now. Then out of nowhere I started getting "CHECK_NRPE: Socket timeout after 30 seconds." errors, but only on service checks using check_init_service, everything else (CPU,Disk,Mem) is returning OK. This is very strange. Any suggestions?

[lmiltchev]

Can you run the "check_init_service" from the command line and post the output?

You can obtain some additional information on command line testing by reading here:

http://support.nagios.com/wiki/index.ph ... k_Commands

[axj0187]

Do you mean on the machine I am monitoring?

If so:

./check_init_service sshd
sshd (pid 3349 2504 1971) is running...

[lmiltchev]

You can try increasing the value for the timeout in your command definition, for example you may have:

Code: Select all

define command {
       command_name                             check_nrpe
       command_line                             $USER1$/check_nrpe -H $HOSTADDRESS$ -t 30 -c $ARG1$ $ARG2$
}

Try changing "-t 30" to "-t 60" or "-t 90".

After this, run in terminal:

Code: Select all

# service nagios restart

and see if you are still getting a timeout message.

[axj0187]

Now after a little while it returns with NRPE: Unable to Read Output. Ive been hacking away at this for a day now and have no idea what else to try, any other ideas?

Thanks for the help.

[nscott]

That error generally means that plugins have been moved or the check_command (on the remote box) was redefined. (On the remote box) Make sure you're plugins are still in /usr/local/nagios/libexec, are executable by the user nagios, and make sure (on the remote box) that the check commands, usually in the /usr/local/nagios/etc/ are properly setup.

[axj0187]

I removed sudo from the command definition and this fixed the problem. Thanks.