check snmp problem and cant find the reason
jgking at packetstorm.org
jgking at packetstorm.org
Fri Jan 24 14:03:23 CET 2003
Ok thats strange, the test box the -v switch works and on the production i
get an invalid switch.
I had downloaded both plugin sets so maybe i have uploaded the wrong one
to the production system.
On Thu, 23 Jan 2003, Subhendu Ghosh wrote:
>
> Can you try running the plugin with a "-v" option (verbose mode - not
> documented) - it prints the command and the output of the command.
>
> -sg
>
>
> On Thu, 23 Jan 2003, Kelly Setzer wrote:
>
> > > From: jgking at packetstorm.org
> > >
> > > Ok i have 2 linux systems, one i test on and the other is where i deploy
> > > after testing. On the test system everything works just fine. On the
> > > production system nagios cannot get a return value from the snmp daemon.
> > >
> > > 5. So as the nagios id i then run the libexec/check_snmp program passing
> > > it the above information. It works as well
> > >
> > > So what could be causing the nagios client to not be able to connect to
> > > the snmpdaemon?
> > >
> > > All im getting back on this box is "SNMP problem - No data recieved from
> > > host "
> >
> > I am having the same problem - intermittently. I recently added SNMP
> > monitoring to a completely functional nagios installation. I have
> > about 80 services that use check_snmp. On two hosts, I see recurring
> > errors as above, "No data received from host". We have 156 services
> > total that we are monitoring.
> >
> > I've done extensive testing to prove to me that snmpget on the nagios
> > server functions correctly. I also did some load testing against the
> > two problem hosts and was NEVER able to get snmpget to fail.
> >
> > However, by putting a shell-script wrapper around snmpget and using that
> > to log all calls from check_snmp, I am seeing cases where check_snmp
> > *apparently* doesn't get any data back from snmpget. I believe this
> > is an issue with check_snmp.
> >
> > I have tried several versions of the net-snmp/ucd-snmp package on
> > both the nagios server and the affected hosts. That had no effect.
> > I have tried both 1.3.0b2 and 1.3b1 of the nagios-plugins. Persistently
> > "re-scheduling service checks" will cause this problem to disappear,
> > sometimes for several days at a stretch.
> >
> > Kelly
> >
> >
> >
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