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Posted to dev@rocketmq.apache.org by GitBox <gi...@apache.org> on 2021/12/20 04:54:32 UTC

[GitHub] [rocketmq-client-cpp] fengxiao2019 commented on issue #392: received duplicate messages, branch: master

fengxiao2019 commented on issue #392:
URL: https://github.com/apache/rocketmq-client-cpp/issues/392#issuecomment-997595071


   Multiple threads with the same process will receive messages with the same message_id at the same time (or at many intervals, usually at the millisecond level).
   Single process with a single thread: it will receive the same message_id several times in a row after the current message_id has been processed.
   This scenario is still quite frequent.
   
   同一个进程多个线程，会在同一时刻（或者间隔很多的时间内，通常是在毫秒级别）收到相同message_id的消息。
   单个进程单个线程：会在当前message_id处理完之后，连续收到多次同一个message_id的消息。
   这种场景还是挺频繁的。


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