Nagios check_ping times

[Brian Desmond]

I had issues with check_ping under MS Virtual Server. The plugin would routinely timeout. We suspected it could be a clock drift issue because MS does not have VM Aditions for *nix yet. I switched to check_icmp and things have been good...
 
Thanks,
Brian Desmond
brian at briandesmond.com
 
c - 312.731.3132

________________________________

From: nagios-users-admin at lists.sourceforge.net on behalf of Reg
Sent: Wed 1/11/2006 12:18 AM
To: nagios-users at lists.sourceforge.net
Subject: [Nagios-users] Nagios check_ping times



I sporadically ( 1 or 2 times/day for 50 hosts) get check_ping returing
average response times of 500ms plus resulting in false "critical"
alerts from Nagios.  E.G.
PING CRITICAL - Packet loss = 0%, RTA = 535.87 ms

I'm running Suse 9.1 on VMWare ESX server.  I DO NOT believe vmware to
be a factor because I also run smokeping on this virtual machine. 
SmokePing sends 3 pings every 5 seconds to the same hosts and never
shows the 500ms+ latency that Nagios reports.  During the course of a
typical day I get 80-100 of these "false alarms"
I suspect the problem is in the nagios daemon and how i have it
configured.  When i run check_ping manually i can't reproduce the
500ms+.  Are there any quick tests or diagnostics to help figure what's
going on?

Reg


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