Anybody keeping tabs on the performance of their NagiosXI server knows that mysqld, httpd and nagios all play an intense game of king-of-the-CPU. The cool thing about NagiosXI is that it comes with NDOUtils out of the box, which is a great tool for offloading the MySQL server, which is great if you need to stack on more checks. If you run a NagiosXI server that is completely loaded down and have another server that could host a MySQL server for that NagiosXI server, this PDF would definitely be worth a read. The PDF attached is a step-by-step guide to migrate your existing MySQL server to a remote MySQL server and is definitely an interesting look at just how exstensible NagiosXI is.
Offloading MySQL to a Remote Server