Nagios Capacity

[Binbin Wang]

Thank you for your reply, I would like to give you some detail of our monitoring environment. I configure nagnios on an Virtual Machine based on 2x4Core CPU, 24G Memory physical machine, which runs 4 VMs. Service quantity is 3814 and host quantity is 406. The service check latency is unstable, always changed. Does any configuration error cause that problem? or Virtual Machine capacity result it?
Thanks a lot.
 
 




 Monitoring Performance









Service Check Execution Time:
0.03 / 71.65 / 0.582 sec

Service Check Latency:
0.00 / 7.60 / 1.140 sec

Host Check Execution Time:
0.00 / 0.00 / 0.000 sec

Host Check Latency:
0.00 / 0.00 / 0.000 sec

# Active Host / Service Checks:
406 / 3814

# Passive Host / Service Checks:
0 / 0

 









Monitoring Performance









Service Check Execution Time:
0.00 / 71.65 / 0.604 sec

Service Check Latency:
0.19 / 178.28 / 86.398 sec

Host Check Execution Time:
0.00 / 0.00 / 0.000 sec

Host Check Latency:
0.00 / 0.00 / 0.000 sec

# Active Host / Service Checks:
406 / 3814

# Passive Host / Service Checks:
0 / 0
 

 

 

 


 
> From: marc at ena.com
> Date: Fri, 15 Jan 2010 08:23:42 -0600
> To: nagios-users at lists.sourceforge.net
> Subject: Re: [Nagios-users] Nagios Capacity
> 
> 
> On Jan 15, 2010, at 5:02 AM, Binbin Wang wrote:
> 
> > Hi all
> > 
> > I have one question about nagios capacity, According to my investigation, nagios server's capacity is about 3000 items. For example, 1000 hosts are defined on nagios servers, and every host offer 3 services monitoring, so total 3000 items are on one nagios server. If item quantity is beyond 3000, nagios performance will dramatically decline. Could someone give me the offical quantity about nagios capacity? thanks a lot.
> 
> 
> There's nothing official or even unofficial as there are too many variable involved. Some of them are the type of hardware you're running it on, the types of checks you are doing, the plugins you use and how frequently you check. There's no formula for determining max capacity. It's an art more than a science. The best you can expect is reports about what others have been able to do. It's been discussed before here but it can be difficult to search for...
> 
> 3000 is conservative and an easy number on modern hardware with mixed checks running every 5 minutes. I have non-dedicated machines doing that easily on older hardware. I expect that I can easily double, triple or more those checks. There are people who have reported running 10,000+ checks on a single machine (or even more than that).
> 
> --
> Marc
> 
> 
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