No data was received from host!

[Steve Shipway]

This nicely explains why my mrtg-pnsclient script (which allows MRTG to
directly query pnsclient, NC_Net etc) has occasional problems when
querying two variables at once, and the second query fails.  It is
interesting to note that the original pnsclient doesn't have this
limitation :)
 
If you need to do several checks on eventlogs, you might be better off
using the NagEventLog eventlog agent instead (available from
nagiosexchange.org) to parse the logs and send passive alerts to Nagios.
 
Steve

--
Steve Shipway
ITSS, University of Auckland
(09) 3737 599 x 86487
s.shipway at auckland.ac.nz



 


________________________________

	From: nagios-users-bounces at lists.sourceforge.net
[mailto:nagios-users-bounces at lists.sourceforge.net] On Behalf Of Anthony
Montibello
	Sent: Monday, 6 November 2006 1:03 p.m.
	To: nagios-users at lists.sourceforge.net
	Subject: Re: [Nagios-users] No data was received from host!
	
	
	NC_NEt ver 2.28 can only preform one check at a time.  
	thus if some of these checks take a long time to process, Like
the inplementation of eventlog checks in that version of NC_NEt then the
checks may get backed up.  Thus causing several checks to get the No
Data Recieved form host. 
	 
	THe source of this may be due the Windows host, being very
bogged down. 
	A second source may be one of the checks periodically taking
longer to preform.
	 
	A posible solution may be to increase the timout in check_nt.
command.  this may allow it to check up quicker when the backup does
occure.  
	 
	A second solution is to setup some of the checks to be preformed
as passive checks using NSCA.  this will eliminate that issue
altogether.  
	 
	Good Luck,
	TOny (creator of  NC_NEt)
	 
	 

	 
	On 11/2/06, Folkers, Lynn <Lynn.Folkers at us.fujitsu.com> wrote: 


		I am running Nagios 2.0 on Redhat EL3.  I am running
NC_NET version 2.28 on the Windows clients.  I monitor 222 systems with
1324 service checks.  The problem I am having is that on about 12
Windows clients I get the following error during checks "WARNING
11-02-2006 10:28:31 9d 6h 44m 37s 5/5 No data was received from host! ".
This does eventually clear up but continually comes back. This does not
happen on all the Windows clients. They are all running the same NC_NET
2.28 version.  Has anyone else seen this?

		Thanks..... 

		


	
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