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Nagios Core Check_Load Concern
Posted: Wed Aug 09, 2017 4:12 am
by vnoc
Hi Team,
Can you explain me what exactly the Check_load will monitor and also confirm does this monitor CPU Utilization, Memory Utilization & IO wait.
Re: Nagios Core Check_Load Concern
Posted: Wed Aug 09, 2017 8:35 am
by mcapra
Here is the man page for check_load:
https://nagios-plugins.org/doc/man/check_load.html
It leverages the glibc extensions, specifically the getloadavg function, under
gnulib:
https://www.gnu.org/software/libc/manua ... urces.html
This function gets the 1, 5 and 15 minute load averages of the system. The values are placed in loadavg. getloadavg will place at most nelem elements into the array but never more than three elements. The return value is the number of elements written to loadavg, or -1 on error.
TL;DR it's all in terms of CPU usage specifically. Here's an article that explains this a bit better:
https://www.howtogeek.com/194642/unders ... e-systems/
Re: Nagios Core Check_Load Concern
Posted: Wed Aug 09, 2017 10:51 am
by bolson
Thank you mcapra!
vnoc, may we close this topic?
Re: Nagios Core Check_Load Concern
Posted: Mon Aug 14, 2017 9:36 pm
by vnoc
still i am not haveing a clarity that check_load checks only the cpu load or it checks IO waits disk utilization memory utilization and cpu utilization
Re: Nagios Core Check_Load Concern
Posted: Tue Aug 15, 2017 10:23 am
by bolson
Hello vnoc,
The check_load plugin checks only the CPU load. May we close this topic?