PromQL理解
期待数据
10min内的请求数(sum)
istio_requests_total{destination_service_name="productpage"}
10min内的请求数增长率(rate)
rate(istio_requests_total{destination_app="productpage"}[10m])
10min内的响应时间P90(quantile)
histogram_quantile(0.90, sum(rate(istio_request_duration_milliseconds_bucket{destination_app="productpage"}[10m])) by(le))
10min内的响应时间增长率(rate)
rate(istio_request_duration_milliseconds_bucket{destination_app="productpage"}[10m])
参考
https://www.zhihu.com/question/380615839 (Prom时区UTC没法改)