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https://issues.apache.org/jira/browse/KAFKA-5093?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16027555#comment-16027555
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Jason Gustafson commented on KAFKA-5093:
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[[email protected]] Apologies. I decided to pick this up yesterday, but
forgot to assign myself.
> Load only batch header when rebuilding producer ID map
> ------------------------------------------------------
>
> Key: KAFKA-5093
> URL: https://issues.apache.org/jira/browse/KAFKA-5093
> Project: Kafka
> Issue Type: Sub-task
> Reporter: Jason Gustafson
> Priority: Blocker
> Labels: exactly-once
> Fix For: 0.11.0.0
>
>
> When rebuilding the producer ID map for KIP-98, we unnecessarily load the
> full record data into memory when scanning through the log. It would be
> better to only load the batch header since it is all that is needed.
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