NRPE Repotting timeouts

[Subhendu Ghosh]

On Mon, 25 Jul 2005, Mohr James wrote:

> Hi All!
>
> In order to record performance data, we have a construct that looks like
> this:
>
> - Nagios starts an NRPE job on another machine which starts a perl
> script on a Windows 2003 machine
> - the perl script uses the snmpget command from net-snmp 5.2.1 to read a
> single value from a remote machine.
> - The value is set in the perl script simply by $value=`$command`. (I am
> not using the SNMP perl modules)
> -  The OID .1.3.6.1.4.1.1.1.101.1 is defined like this in snmpd.conf:
> exec .1.3.6.1.4.1.1.1 /usr/bin/perl /opt/elaxy/bin/get_cpu_usage.pl
> - This value is then written to a MS SQL Database using osql.
>
> What is happening is that I see dozens of snmpget.exe programms running
> (occassionally a couple of perl.exe processes). Unfortunately, I see no
> way of figuring out to where these processes are connected, so I cannot
> tell if there are specific machine causing the problems. Using netstat,
> I do see a number of connections to the MS SQL database in TIMEWAIT.
> However, since we are checking a couple of dozens machines, this is not
> surprising.
>
> The Nagios is reporting both "CHECK_NRPE: Socket timeout after 10
> seconds." and "connection refused". Obviously this could be a purely
> net-snmp problem, however, as far as I can see it seems to be behaving
> correctly. Since I can run the commands by hand with no problem, I am at
> a loss to explain where net-snmp (snmpget) is having a problem.
>
> Any ideas would be greatly appreaciated.
>
> Regards,
>
> Jim Mohr
>

Wouldn't it be simpler to run the script off the Nagios host and enter 
into MSSQL using FreeTDS/perl DBI

-- 
-sg


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