satishd commented on code in PR #11390:
URL: https://github.com/apache/kafka/pull/11390#discussion_r1047015681
##########
core/src/test/scala/unit/kafka/server/AbstractFetcherThreadTest.scala:
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@@ -614,12 +613,103 @@ class AbstractFetcherThreadTest {
assertEquals(0L, replicaState.highWatermark)
}
+ @Test
+ def testFollowerFetchMovedToTieredStore(): Unit = {
+ val partition = new TopicPartition("topic", 0)
+ val fetcher = new MockFetcherThread(new MockLeaderEndPoint)
+
+ val replicaLog = Seq(
+ mkBatch(baseOffset = 0, leaderEpoch = 0, new SimpleRecord("a".getBytes)),
+ mkBatch(baseOffset = 1, leaderEpoch = 2, new SimpleRecord("b".getBytes)),
+ mkBatch(baseOffset = 2, leaderEpoch = 4, new SimpleRecord("c".getBytes)))
+
+ val replicaState = PartitionState(replicaLog, leaderEpoch = 5,
highWatermark = 0L, rlmEnabled = true)
+ fetcher.setReplicaState(partition, replicaState)
+ fetcher.addPartitions(Map(partition ->
initialFetchState(topicIds.get(partition.topic), 3L, leaderEpoch = 5)))
+
+ val leaderLog = Seq(
+ mkBatch(baseOffset = 5, leaderEpoch = 5, new SimpleRecord("f".getBytes)),
+ mkBatch(baseOffset = 6, leaderEpoch = 5, new SimpleRecord("g".getBytes)),
+ mkBatch(baseOffset = 7, leaderEpoch = 5, new SimpleRecord("h".getBytes)),
+ mkBatch(baseOffset = 8, leaderEpoch = 5, new SimpleRecord("i".getBytes)))
+
+
+ val leaderState = PartitionState(leaderLog, leaderEpoch = 5, highWatermark
= 8L, rlmEnabled = true)
+ // Overriding the log start offset to zero for mocking the scenario of
segment 0-4 moved to remote store.
+ leaderState.logStartOffset = 0
+ fetcher.mockLeader.setLeaderState(partition, leaderState)
+
fetcher.mockLeader.setReplicaPartitionStateCallback(fetcher.replicaPartitionState)
+
+ assertEquals(3L, replicaState.logEndOffset)
+ val expectedState = if (truncateOnFetch) Option(Fetching) else
Option(Truncating)
Review Comment:
That is the existing code. It is not added by this PR.
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