mcmmining commented on PR #15638:
URL: https://github.com/apache/kafka/pull/15638#issuecomment-2029994647

   > ## Context
   > In `MemoeyRecordsBuilder.appendLegacyRecord`, there are two similar checks 
currently
   > 
   > 1.  
   > ```
   > if (compressionType == CompressionType.NONE && timestampType == 
TimestampType.LOG_APPEND_TIME)
   > ```
   > 
   > 2. 
   > ```
   > if (timestampType == TimestampType.LOG_APPEND_TIME)
   > ```
   > 
   > The first check verify the timestamp type and compression type, the second 
check verify the timestamp type again.
   > However, if it's LOG_APPEND_TIME, we should choose the `logAppendTime` no 
matter whether it's compressed or not.
   > The `logAppendTime` is init in LogValidator 203L. 
   > 
   > ## Solution 
   > Remove the redundant check.
   > 
   > ## Test
   > run 
   > ` ./gradlew clean client:test --tests 
org.apache.kafka.common.record.MemoryRecordsBuilderTest
   > `
   > and it passed
   > 
   > ### Committer Checklist (excluded from commit message)
   > - [ ] Verify design and implementation 
   > - [ ] Verify test coverage and CI build status
   > - [ ] Verify documentation (including upgrade notes)
   > 
   
   b77722b477734e69e156a909e44a45573bec5c5a


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