lnbest0707 commented on PR #279:
URL: 
https://github.com/apache/flink-connector-kafka/pull/279#issuecomment-5484869147

   > Hi. Sorry for delayed response. I was on vacation. I left 1 
question-comment. If my understanding is correct, we may introduce duplicate 
producing which will affect EOS.
   > 
   > p.s. During my vacation I also missed another PR #278 . That's why I was 
curious and done a bit of deep dive into the Dynamic topic. It looks like we 
may have a dataloss for DynamicKafka workflow. Worth to check my 
[PR](https://github.com/apache/flink-connector-kafka/pull/295) (I know you 
contribute a lot to DynamicKafka, maybe you can review?) because it also fixes 
that EOS issue. It is not a duplicate PR, it solves a different issue.
   
   The https://github.com/apache/flink-connector-kafka/pull/295 looks valid. 
And your question also makes sense. The approach in the PR has been tuned a few 
times due to various corner cases. Let me also rethink about whether we can get 
some better approaches to make it simpler and catch all issues.


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