Comments (4)
yang-xiaodong
commented on July 21, 2024
如果生产者和消费者都是一个实例的话，你可以遇到了我最近刚发现的之前对Kafka一个概念理解错误的一个潜在bug。
手动提交模式，假如消息队列里有10条消息，拉取第一条后存数据库失败，第二次拉取会拉取到第二条消息，只要你的consumer没有触发rebalance，即使你没有ACK提交，第一条消息再也拉不到了。
你这里的情况应该是在先ACK到了后面的消息，导致之前的消息取不到了。你可以对应看一下是不是我说的这种情况呢？
如果是这个问题，稍后我会想办法处理这种情况。。
发消息发布出去的问题，我需要检查确认一下
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a641545621
commented on July 21, 2024
嗯 是你说的这样子 只是有点疑问就是 消息第一次发送失败 后面重新以新的消息再发送出去 应该是按最新消息来处理把？这样接收最新消息的话应该就正常了.
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yang-xiaodong
commented on July 21, 2024
如果是发送端新发出去，是按照新消息处理的，所以消费端一般要保证幂等性
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yang-xiaodong
commented on July 21, 2024
Closed!
v2.1.3 has fixed kafka consumer database store failed may caused message loss bug.
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