[ClusterLabs] Never join a list without a problem...

[Ferenc Wágner]

Jeffrey Westgate <Jeffrey.Westgate at arkansas.gov> writes:

> We use Nagios to monitor, and once every 20 to 40 hours - sometimes
> longer, and we cannot set a clock by it - while the machine is 95%
> idle (or more according to 'top'), the host load shoots up to 50 or
> 60%.  It takes about 20 minutes to peak, and another 30 to 45 minutes
> to come back down to baseline, which is mostly 0.00.  (attached
> hostload.pdf) This happens to both machines, randomly, and is
> concerning, as we'd like to find what's causing it and resolve it.

Try running atop (http://www.atoptool.nl/).  It collects and logs
process accounting info, allowing you to step back in time and check
resource usage in the past.
-- 
Feri