vvcephei commented on pull request #9836:
URL: https://github.com/apache/kafka/pull/9836#issuecomment-765574234


   Thanks @guozhangwang ,
   
   I considered that, but I think for this work, we actually do want to return 
the metadata if we have fetched some. Since the semantics of `poll(timeout)` 
are that it will wait _up to_ the timeout to return and that it may or may not 
return any records, it seems this PR's behavior is just fine.
   
   All that is wrong is that this particular test expects to get records back 
after a single poll. Among our integration tests, this is a pretty unique 
expectation, so I felt good about relaxing it. Does that seem ok to you?


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