kevin-wu24 commented on code in PR #17500:
URL: https://github.com/apache/kafka/pull/17500#discussion_r1800207969


##########
raft/src/main/java/org/apache/kafka/raft/KafkaRaftClient.java:
##########
@@ -258,7 +260,8 @@ public KafkaRaftClient(
             localSupportedKRaftVersion,
             logContext,
             new Random(),
-            quorumConfig
+            quorumConfig,
+            new HashSet<>()

Review Comment:
   Looks like the log layer gets the batch associated with a `targetOffset` 
from `FileRecords#searchForOffsetWithSize`, but it currently returns the last 
offset included in that batch. It looks safe to change this to return the base 
offset instead since the offset field is never being accessed, so we can 
retrieve the batch start offset for a given offset. `LogSegment#read` also 
needs to construct `LogOffsetMetadata` with this batch start offset instead of 
the `startOffset` that is passed into the method.



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