Nagios XI Slow Performance with Many Services

[lynnecrosby]

Hi everyone,

I’m running Nagios XI with around 800 hosts and 10,000+ services, and recently the system has become very slow. The web interface loads slowly and CPU usage is often very high.

I’ve already restarted services and checked logs but didn’t find anything unusual.

Any tips to improve performance or optimize for large environments?

Thanks!

[jsimon]

Hi Lynne,

The best starting point for improving performance on your server is likely going to be this document.

Notably, you may find that Nagios Mod Gearman is able to reduce the overhead on your XI server by distributing processing compute across multiple workers.