Nagios Support Forum

I think you have a very good point with the ping tests if done in a separate service check. I have plenty of other service checks for a host so they would discover also that the server is down. That then would trigger also the host check and I get my host down alert that way. I would need the ping s...

Since the scheduler runs in only one thread, the speed of one Core is relevant and not how many Cores the server has. The way to tell if you're suffering from that would be to check if one of the cores is continually pinned, and if that's the case then the only way around the problem would be to sp...

I used ndoutils but turned it off to take it out of the equation. I assumed it may play a slowing down factor. I disabled the max concurrent check counter by setting it to 0. Right now I'm doing what you did: Moving check intervals around to lower the total number of checks per hour. I have only 850...

I'm using Nagios Core 3.2.3 with roughly 850 servers and 7800 service checks. Most of the service checks are nrpe checks, but I have also the usual ping and host ping check and a ssh check. For something that size, you might want to take a peek at the Large Installation Tweaks doco; I got some extr...

I'm using Nagios Core 3.2.3 with roughly 850 servers and 7800 service checks. Most of the service checks are nrpe checks, but I have also the usual ping and host ping check and a ssh check. So every server has 9 services plus the host check. I configured the ping check to run every 5 minutes, with 3...