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Posted to commits@rocketmq.apache.org by GitBox <gi...@apache.org> on 2022/12/14 03:59:48 UTC

[GitHub] [rocketmq] ShannonDing commented on issue #5663: Messages may be lost when SyncStateSet expand in extreme scenarios

ShannonDing commented on issue #5663:
URL: https://github.com/apache/rocketmq/issues/5663#issuecomment-1350362435

   > 
   
   这个问题发生在syncStateSet扩张时刻，本地的syncStateSet和远程syncStateSet不一致的时候，如何决定ack数保证消息不丢。
   按照这个要求， 不管是syncStateSet的收缩或者扩张，都应该取本地与远程的合集，作为消息保存成功判断的依据，应该就可以解决消息丢失的问题。
   ![image](https://user-images.githubusercontent.com/16487356/207502329-48d7978f-9708-4591-b9db-8e314d6f1c02.png)
   


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