3 ms·
> To make things worse all our usual monitoring hadn't caught the problem I suspect this is because most monitoring focuses on average instead of percentiles o
by laichzeit0 11y ago
> To make things worse all our usual monitoring hadn't caught the problem
I suspect this is because most monitoring focuses on average instead of percentiles or maximum. Outliers are the most interesting data points. There is an almost cult-like following of the average as a KPI in monitoring tools.
- luhn 11y agoNo, they explain why in the article: Their monitoring was looking at the application (nginx), so packets getting stuck in the kernel weren't reflected in that.