Can anyone tell me what the check_load plugin actually checks?
We have a Current Load service check running on our servers and last night all of them went into a warning state. All of the load values returned ranged from 3.09 - 3.92. They recovered shortly after. But we are trying to figure out what might have caused this.
The description from GroundWork/Nagios reference says "This plugin tests the current system load average". System load of..? What is being measured here?