Outro Three main features Storage backend Caveat: Prometheus 2.0 comes with storage v3 Staleness handling Remote read & write API is now stable-ish Links to in-depth talks about these features are at RC, not previous release RC is published and iterated upon as long as there are issues Release handling cycles between team members to ensure several people are able to release Richard Hartmann & Frederic

画一个饼图。这里有个难点：接入层这个 Pod 没有 version 标签， version 信息只是出现在 kube_pod_labels 中，如何让二者联动呢？上答案： sum( rate(http_request_count{code=~"^(?:5..)$"}[5m])) by (pod) * on (pod) group_left(label_version) kube_pod_labels 下面我们假设一个指标及其数据，做一个算法演示，假设指标名是 http_request_duration_seconds_bucket ，其各个 bucket 的值如下： http_request_duration_seconds_bucket{job="n9e-proxy", le="0.1"} 500 http_request_duration_seconds_bucket{job="n9e-proxy" proxy", le="1"} 700 http_request_duration_seconds_bucket{job="n9e-proxy", le="10"} 850 http_request_duration_seconds_bucket{job="n9e-proxy", le="20"} 1000 http_request_duration_seconds_bucket{job="n9e-proxy"