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Jun 20, 2026 · Backend Development
Message Ordering at 10M+ QPS: From Global to Partition to Business-Key
The article explains that message ordering is a spectrum—from strict global ordering to partition-level and finally business-key ordering—and examines the trade‑offs, pitfalls, and engineering techniques needed to maintain order while scaling to tens of millions of QPS.
KafkaPartitioningbusiness key
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