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You mention time to react. How do you get notified that memory usage is getting out of hand before the system is actually unusable?
by cosarara 7y ago
You mention time to react. How do you get notified that memory usage is getting out of hand before the system is actually unusable?
- KaiserPro 7y agoDepends on the service its running really. I'd assume that you'd have key metrics plotted in grafana, so its case of following up/alerting on that In previous cases, It was fairly simple, an alert was fired because the queue size ballooned. Looking at the machine stats we saw that all the ram cache had been ejected just at the same time performance started to drop. Either way, its pretty trivial to put an alert on a stat in grafana. however, your mileage may vary.