Huge Service Latencies

[Ludwig Pummer]

I had large latencies caused by (1) hosts being down and (2) a host
check that took way too long. Nagios will suspend all service checks
while it performs a host check. In my case, the Nagios config I
inherited made 10 attempts at 30 seconds each attempt before declaring a
host to be down, so if one host went down, the host check took 300
seconds. I typically have 15 hosts down out of 475. I changed my host
checks to 3 attempts at 6 seconds each, and latencies went way down.
 

--
Ludwig Pummer
System Administrator
Copart Auto Auctions



 



________________________________

	From: nagios-users-admin at lists.sourceforge.net
[mailto:nagios-users-admin at lists.sourceforge.net] On Behalf Of Blake
Krone
	Sent: Monday, December 05, 2005 2:08 PM
	To: Nagios Users
	Subject: [Nagios-users] Huge Service Latencies
	
	
	Service Check Execution Time:    0.10 / 10.04 / 2.175 sec
	Service Check Latency:    21.25 / 483.37 / 224.970 sec
	Host Check Execution Time:    0.06 / 10.70 / 4.307 sec
	Host Check Latency:    0.00 / 529.15 / 5.137 sec 
	# Active Host / Service Checks:    103 / 236
	# Passive Host / Service Checks:    0 / 1
	
	Machine is a P3 733mhz with 128mb ram running 2.6.11-gentoo-r3
kernel and Nagios 2.03b
	
	
	Any ideas as to why it has such huge latencies? 
	
	

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