Large scale installation

[Paul Weaver]

Doesn't it depend on how often you're performing the checks too? 1000 checks every 10 seconds is harder than 10,000 checks every hour.

We have 589 hosts/3619 service on a 2 cpu 2.8GHz xeon with 1GB of ram, which does other things too. The machine is about 8-10 years old.

The checks are scheduled every 4 minutes, however only 45% have run in the last 4 minutes. 95% have run in the last 15.

This is with nagios2, which has issues like blocking when hosts are down (32 currently are) though.


-----Original Message-----
From: Randal, Phil [mailto:phil.randal at hoopleltd.co.uk]
Sent: Mon 11/06/2012 4:54 PM
To: Nagios Users List
Subject: Re: [Nagios-users] Large scale installation
 
What's the spec of your nagios server?

We're checking (around) 500 hosts, 4500 active, 5000 passive service with Nagios 3.4.1 in a CentOS 5.8 VM with 2GB RAM, 4 vCPUs, without problems with the help of check_mk /mk_livestatus (http://mathias-kettner.de/check_mk.html)

Also using pnp4nagios and rrdcached and ramdisk for checkresults.

Large installation config tweaks, and tuning the check result reaper frequency all help even out the load.

Cheers,

Phil
--
Phil Randal
Infrastructure Engineer
Hoople Ltd | Thorn Office Centre | Hereford HR2 6JT
Tel: 01432 260415 | Email: phil.randal at hoopleltd.co.uk

From: Andreas Brandino [mailto:ampranti at gmail.com]
Sent: 10 June 2012 13:39
To: Nagios-users at lists.sourceforge.net
Subject: [Nagios-users] Large scale installation

Hi all,

my nagios installation  has currently 400+ hosts and around 1400 checks.
As the server load grows, delays are appearing.

Is any way to move a part of active checks to a second nagios server?
And in that case how will these two nagios servers exchange data?
If this is feasible can you point me to some documentation?

Thank you
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