eduwercamacaro commented on PR #22491:
URL: https://github.com/apache/kafka/pull/22491#issuecomment-4635608291

   Thanks for the PR @nicktelford 
   
   It seems to me that every time a segment is expired, we immediately remove 
it from the `segments` collection. So, in that case, the 
`committedOffset(partition)` method won't iterate over expired segments. So, 
I'm not fully sure that this solves the issue.
   
   Separately, 
   We are currently storing offsets on every active segment during commit, but 
new segments never inherit the existing offsets data, which gives us a small 
window of time where the `commitedOffset` returns `null` for a partition that 
is not yet persisted into a new segment. It will only be consistent on the next 
commit


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