Nagios Support Forum

Well it looks like we're ready to take the plunge with Nagios XI as our Enterprise server/services solution. I've been looking at the hardware req doc http://assets.nagios.com/downloads/nagi ... ements.pdf and still need some help. Here is what we expect 2 years out:

4,000 servers
20,000 services (ave of 5/server)

I figure we will keep the MySQL separated from Nagios XI itself. What are your recommendations? I think we need to go with a stand alone server for the Nagios portion and don't know if we need a stand alone for the MySQL. Any recommendations you can provide will be helpful.

With that size of install, you will want to leverage all the performance options you can. This includes offloading the mysql databases and using rrdcached and a ramdisk. You will also want to look into using passive checks instead of active if the load is too high on the server.
http://assets.nagios.com/downloads/nagi ... rmance.pdf
http://assets.nagios.com/downloads/nagi ... ith_XI.pdf
http://assets.nagios.com/downloads/nagi ... h_NRDS.pdf
http://assets.nagios.com/downloads/nagi ... ios_XI.pdf
http://assets.nagios.com/downloads/nagi ... giosXI.pdf
http://assets.nagios.com/downloads/nagi ... Server.pdf

I was also thinking we use this http://assets.nagios.com/downloads/nagi ... ng_DNX.pdf as a solution. Start with 1 standalone server and then add slaves to it as we grow. Do you think it's ok to have the MySQL as a virtual or standalone? Getting any proposal won't be difficult as this will be THE monitoring solution for our company.

It is useful to have an offloaded DB, however that does add some latency and is generally only recommended when you are running into performance issues. I would recommend using Mod Gearman instead of DNX as DNX is all but deprecated and has not been updated for quite a while.

http://assets.nagios.com/downloads/nagi ... ios_XI.pdf

Looks like we're going 16 core, with 32 gb of RAM to start off....then we'll use Mod Gearman to balance the load with workers...thanks for your help.

No problem, we would be happy to hear how everything looks after implementation.

Just a follow up to this post. Our server is on the way, we have bought the enterprise XI. A question I had was can we use Nagios Core (built with Chef on VMs) to feed into XI with Mod Gearman installed?

Yes, you can do this with NSCA or NRDP under Admin -> Inbound Transfers in XI. There will be a bit of setup required beforehand in both cases, but XI makes it pretty clear what needs to be done:



You could also just use Gearman workers do it.

Thanks for the reply, what's your recommendation? NSCA/NRDP or Gearman workers?

Well NSCA/NRDP are passive check protocols, mod_gearman is a load balance that processes checks and performance data for nagios thus alleviating the load on your nagios server in general.