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sreweekly/markdown/328/03-the-good-the-bad-and-alerting-on-derivatives.md

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+# The Good, The Bad, And Alerting on Derivatives
+
+- **期号**: SRE Weekly Issue #328（2022-06-27）
+- **作者**: Boris Cherkasky
+- **链接**: https://cherkaskyb.medium.com/the-good-the-bad-and-alerting-on-derivatives-101a88ce174d
+
+## 简介
+
+By “derivatives”, the author means rate-of-change, like Prometheus’s irate().  Derivatives have their place, but this article has good reasons to reconsider using them for alerts.
+
+## 正文
+
+> ⚠️ 抓取失败：HTTP 403