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https://issues.apache.org/jira/browse/BEAM-2534?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16076928#comment-16076928
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Jingsong Lee commented on BEAM-2534:
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Could be cherry-picked to 2.1.0 branch?
> KafkaIO should allow gaps in message offsets
> --------------------------------------------
>
> Key: BEAM-2534
> URL: https://issues.apache.org/jira/browse/BEAM-2534
> Project: Beam
> Issue Type: Bug
> Components: sdk-java-extensions
> Affects Versions: 2.0.0
> Reporter: Raghu Angadi
> Assignee: Raghu Angadi
> Priority: Minor
> Fix For: 2.1.0
>
>
> KafkaIO reader logs a warning when it notices gaps in offsets for messages.
> While such gaps are not expected for normal Kafka topics, there could be gaps
> when log compaction is enabled (which deletes older messages for a key).
> This warning log is not very useful. Also we should take such gaps while
> estimating backlog.
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