Ask HN: How do you detect oddly performing machines in a large cluster?
Hi HN,<p>I have a problem where random nodes in a large cluster perform pretty far out of spec.  What&#x27;s the correct way to find them?  There&#x27;s a huge diversity of workloads, and the boxes are large so I was considering doing something really trivial that eats up some consistent % of CPU then graphing machines that are some n of SD out of normal (calculating fibbonacci to some low-ish number, for instance).<p>Is there any really good, clean way to do this that solves the problem in an elegant way?