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Snailclimb merged 1 commit into from
Aug 28, 2021
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补充丢失的文字 #1351

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2 changes: 1 addition & 1 deletion docs/system-design/distributed-system/message-queue/RocketMQ-Questions.md
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Expand Up @@ -179,7 +179,7 @@ class Broker {

1. RocketMQ 会出现消息重复发送的问题，因为在网络延迟的情况下，这种问题不可避免的发生，如果非要实现消息不可重复发送，那基本太难，因为网络环境无法预知，还会使程序复杂度加大，因此默认允许消息重复发送
2. RocketMQ 让使用者在消费者端去解决该问题，即需要消费者端在消费消息时支持幂等性的去消费消息
3. 最简单的解决方案是每条消费记录有个消费状态字段，根据这个消费状态字段来是否消费或者使用一个集中式的表，来存储所有消息的消费状态，从而避免重复消费
3. 最简单的解决方案是每条消费记录有个消费状态字段，根据这个消费状态字段来判断是否消费或者使用一个集中式的表，来存储所有消息的消费状态，从而避免重复消费
4. 具体实现可以查询关于消息幂等消费的解决方案

### 2.1.9 广播消费与集群消费
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