第三届中国 Rust 开发者大会 PromQL Got a BOOST: 用 Rust 重写 Prometheus 的查询引擎 Ruihang Xia @greptime.com Ruihang GitHub: waynexia Losing hair at Greptime Wanna sleep 10 hrs/day Learn JS every year Healing About Prometheus and PromQL Why rewrite? What are boosted? PROMETHEUS AND PROMQL The de facto standard in cloud-native monitor scenario Has its own query language called “PromQL” rate(api_reque n{host=“foo”}[5m]) More than a monitor: alert, visualize with many integrations PROMETHEUS AND PROMQL rate(api_request_duration{host=“foo”}[5m]) Operator Data Filter Range SELECT rate(val) OVER (