https://answer.freetools.me/tags/%E6%B6%88%E6%81%AF%E5%8E%BB%E9%87%8D/ Recent content in 消息去重 on Answer Hugo -- 0.152.2 zh-cn Sat, 07 Mar 2026 05:21:22 +0800 https://answer.freetools.me/%E6%B6%88%E6%81%AF%E9%98%9F%E5%88%97%E7%9A%84%E6%8A%95%E9%80%92%E8%AF%AD%E4%B9%89%E4%B8%BA%E4%BD%95%E5%A6%82%E6%AD%A4%E5%A4%8D%E6%9D%82%E4%BB%8E%E7%B2%BE%E7%A1%AE%E4%B8%80%E6%AC%A1%E7%9A%84%E4%B8%8D%E5%8F%AF%E8%83%BD%E5%88%B0%E6%9C%89%E6%95%88%E4%B8%80%E6%AC%A1%E7%9A%84%E5%B7%A5%E7%A8%8B%E5%AE%9E%E8%B7%B5/ Sat, 07 Mar 2026 05:21:22 +0800 https://answer.freetools.me/%E6%B6%88%E6%81%AF%E9%98%9F%E5%88%97%E7%9A%84%E6%8A%95%E9%80%92%E8%AF%AD%E4%B9%89%E4%B8%BA%E4%BD%95%E5%A6%82%E6%AD%A4%E5%A4%8D%E6%9D%82%E4%BB%8E%E7%B2%BE%E7%A1%AE%E4%B8%80%E6%AC%A1%E7%9A%84%E4%B8%8D%E5%8F%AF%E8%83%BD%E5%88%B0%E6%9C%89%E6%95%88%E4%B8%80%E6%AC%A1%E7%9A%84%E5%B7%A5%E7%A8%8B%E5%AE%9E%E8%B7%B5/ 深入剖析消息队列投递语义的本质困境：为什么「精确一次」投递在分布式系统中理论上不可能实现？从Two Generals问题到FLP不可能性结果，从Kafka的幂等生产者到Pulsar的事务API，揭示主流消息队列如何通过去重、幂等性和事务机制实现「有效一次」处理语义，以及在性能、延迟和可靠性之间如何权衡。