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https://issues.apache.org/jira/browse/KAFKA-16310?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17823208#comment-17823208
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Ismael Juma commented on KAFKA-16310:
-------------------------------------
More recent changes to LogValidator:
[https://github.com/apache/kafka/commit/e905ef1edfb92d8771e8c2a9a668f32210ad7e07]
My understanding is that the following change caused the change to the non
compressed case. It looks like the compressed case had the issue already, but
we didn't go further back to see if that has always been the case or not.
> ListOffsets doesn't report the offset with maxTimestamp anymore
> ---------------------------------------------------------------
>
> Key: KAFKA-16310
> URL: https://issues.apache.org/jira/browse/KAFKA-16310
> Project: Kafka
> Issue Type: Bug
> Affects Versions: 3.7.0
> Reporter: Emanuele Sabellico
> Priority: Blocker
> Fix For: 3.7.1
>
>
> Updated: This is confirmed a regression issue in v3.7.0.
> The impact of this issue is that when there is a batch containing records
> with timestamp not in order, the offset of the timestamp will be wrong.(ex:
> the timestamp for t0 should be mapping to offset 10, but will get offset 12..
> etc). It'll cause the time index is putting the wrong offset, so the result
> will be unexpected.
> ===
> The last offset is reported instead.
> A test in librdkafka (0081/do_test_ListOffsets) is failing an it's checking
> that the offset with the max timestamp is the middle one and not the last
> one. The tests is passing with 3.6.0 and previous versions
> This is the test:
> [https://github.com/confluentinc/librdkafka/blob/a6d85bdbc1023b1a5477b8befe516242c3e182f6/tests/0081-admin.c#L4989]
>
> there are three messages, with timestamps:
> {noformat}
> t0 + 100
> t0 + 400
> t0 + 250{noformat}
> and indices 0,1,2.
> then a ListOffsets with RD_KAFKA_OFFSET_SPEC_MAX_TIMESTAMP is done.
> it should return offset 1 but in 3.7.0 and trunk is returning offset 2
> Even after 5 seconds from producing it's still returning 2 as the offset with
> max timestamp.
> ProduceRequest and ListOffsets were sent to the same broker (2), the leader
> didn't change.
> {code:java}
> %7|1709134230.019|SEND|0081_admin#producer-3|
> [thrd:localhost:39951/bootstrap]: localhost:39951/2: Sent ProduceRequest (v7,
> 206 bytes @ 0, CorrId 2) %7|1709134230.020|RECV|0081_admin#producer-3|
> [thrd:localhost:39951/bootstrap]: localhost:39951/2: Received ProduceResponse
> (v7, 95 bytes, CorrId 2, rtt 1.18ms)
> %7|1709134230.020|MSGSET|0081_admin#producer-3|
> [thrd:localhost:39951/bootstrap]: localhost:39951/2:
> rdkafkatest_rnd22e8d8ec45b53f98_do_test_ListOffsets [0]: MessageSet with 3
> message(s) (MsgId 0, BaseSeq -1) delivered {code}
> {code:java}
> %7|1709134235.021|SEND|0081_admin#producer-2|
> [thrd:localhost:39951/bootstrap]: localhost:39951/2: Sent ListOffsetsRequest
> (v7, 103 bytes @ 0, CorrId 7) %7|1709134235.022|RECV|0081_admin#producer-2|
> [thrd:localhost:39951/bootstrap]: localhost:39951/2: Received
> ListOffsetsResponse (v7, 88 bytes, CorrId 7, rtt 0.54ms){code}
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