Nagios and Cacti

[Daniel Emmanuel Feinsmith]

It depends on the intensity of your snmp usage. Cacti has a native  
daemon to do large scale snmp getting, and it does a great job of it.  
So if u have hundreds of devices, each with a lot of interfaces, u  
will probably like cacti. The user interface is also well done for  
graphing snmp data and thresholding on it using the threshold plugin.

=====================
Daniel Feinsmith
=====================
{sent from iPhone}

On Apr 8, 2009, at 8:15 AM, Christopher McAtackney  
<cristoir at gmail.com> wrote:

> 2009/4/8 Andrew Davis <nccomp at gmail.com>:
>> And just an FYI from my own experience... putting Nagios & Cacti on  
>> the same
>> server has been somewhat problematic for us. We have over 400 network
>> devices between switches, routers, WAPs, etc. We also have about 300
>> monitored servers. Initially I had Nagios and Cacti both on one  
>> server with
>> Cacti running via cron every 5 minutes. About every 5 minutes, my  
>> shells
>> would become unresponsive for roughly 30 to 90 seconds. Turning off  
>> either
>> Nagios or Cacti resolved the issue. Running both seems to have  
>> hammered the
>> server a bit (4Gb of RAM, 2 x dual core 2.x Ghz CPUs). We don't  
>> integrate
>> Cacti and Nagios, however. Nagios does both trending and alerts of  
>> all
>> servers. Cacti does trending only of all network devices/ports.  
>> Once I moved
>> Cacti to its own server, all was fine as far as load/latency went.
>
> That's useful to know Andrew, thanks.
>
> Regarding the trending of network devices - is there any reason why
> this can't be done by Nagios? I intend to install PNP4Nagios to take
> care of graphing anyway, but I think it would be nice to have all my
> monitored resources under the one system (for notifications and ease
> of administration).
>
> Is there some major advantage that Cacti provides when it comes to
> SNMP monitoring of network devices that cannot be achieved with Nagios
> and the various SNMP plug-ins available for it (e.g. like these ones
> http://nagios.manubulon.com) ?
>
> Cheers,
> Chris
>
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