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+# We turned off Pub/Sub and nobody noticed
+
+- **期号**: SRE Weekly Issue #530（2026-08-17）
+- **作者**: Patrick Hamann and Mike Fisher — incident.io
+- **链接**: https://incident.io/blog/we-turned-off-pub-sub-and-nobody-noticed
+
+## 简介
+
+Their event-oriented system was based on Google Pub/Sub with its 99.95% SLA, but their own SLA was 99.99%. To resolve that, they moved toward an active-active architecture, load-balancing across 2 message brokers.
+
+There’s an interactive simulation of their algorithm midway through that’s fun to play with!