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https://issues.apache.org/jira/browse/KAFKA-10683?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17232635#comment-17232635
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Timur commented on KAFKA-10683:
-------------------------------
[~grussell], absolutely - from the consumer side this marker is completely
hidden. This behavior looks like broker implementation details exposed to the
outside world IMHO.
> Consumer.position() Ignores Transaction Marker with read_uncommitted
> --------------------------------------------------------------------
>
> Key: KAFKA-10683
> URL: https://issues.apache.org/jira/browse/KAFKA-10683
> Project: Kafka
> Issue Type: Bug
> Components: clients, core
> Affects Versions: 2.6.0
> Reporter: Gary Russell
> Priority: Minor
>
> The workaround for https://issues.apache.org/jira/browse/KAFKA-6607# Says:
> {quote}
> or use `consumer.position()` that takes the commit marker into account and
> would "step over it")
> {quote}
> Note that this problem occurs with all consumers, not just Streams. We have
> implemented this solution in our project (as an option for those users
> concerned about the pseudo lag).
> We have discovered that this technique will only work with
> {code}isolation.level=read_committed{code} Otherwise, the
> {code}position(){code} call does not include the marker "record".
> https://github.com/spring-projects/spring-kafka/issues/1587#issuecomment-721899560
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