abbccdda commented on a change in pull request #11015:
URL: https://github.com/apache/kafka/pull/11015#discussion_r756498765
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File path: core/src/main/scala/kafka/raft/KafkaMetadataLog.scala
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@@ -76,6 +76,9 @@ final class KafkaMetadataLog private (
if (records.sizeInBytes == 0)
throw new IllegalArgumentException("Attempt to append an empty record
set")
+ if (epoch < lastFetchedEpoch())
Review comment:
Do we need sth even more strict such that the diff between append epoch
and last epoch are within 1? In what case will epoch + 2 be valid?
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