haung921209 opened a new pull request, #23202: URL: https://github.com/apache/kafka/pull/23202
LocalLeaderEndPoint falls back to epoch 0 when the leader epoch cache cannot resolve an epoch for the queried offset, while RemoteLeaderEndPoint (via ListOffsets) reports -1 in the same case. Epoch 0 is meaningful to TierStateMachine#buildRemoteLogAuxState, which short-circuits the earlier-epoch lookup on epoch 0 instead of failing the aux state build explicitly. This PR aligns the local path with the remote one by falling back to UNDEFINED_EPOCH (-1) in the four offset fetch methods, and adds a unit test that exercises the unresolvable-epoch case for all four. Jira: https://issues.apache.org/jira/browse/KAFKA-20770 ### Testing - New unit test `testFetchOffsetsReturnUndefinedEpochWhenEpochIsUnresolvable` fails before the fix (`expected epoch=-1 but was epoch=0`) and passes after. - Targeted suites green: LocalLeaderEndPointTest, RemoteLeaderEndPointTest, ReplicaAlterLogDirsThreadTest, AbstractFetcherThreadTest, TierStateMachineTest, ReplicaFetcherThreadTest (156 tests, 0 failures). -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: [email protected] For queries about this service, please contact Infrastructure at: [email protected]
