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https://issues.apache.org/jira/browse/KAFKA-8717?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16896251#comment-16896251
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ASF GitHub Bot commented on KAFKA-8717:
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hachikuji commented on pull request #7081: KAFKA-8717: Reuse cached offset
metadata when reading from log
URL: https://github.com/apache/kafka/pull/7081
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> Use cached hw/lso offset metadata when reading from log
> -------------------------------------------------------
>
> Key: KAFKA-8717
> URL: https://issues.apache.org/jira/browse/KAFKA-8717
> Project: Kafka
> Issue Type: Improvement
> Reporter: Jason Gustafson
> Assignee: Jason Gustafson
> Priority: Major
>
> The broker caches log offset metadata (e.g. segment position) for the high
> watermark and last stable offset in order to avoid additional index lookups
> when handling fetches. Currently this metadata is only used when determining
> delayed fetch satisfaction. We can also use it when reading from the log in
> order to avoid additional redundant index lookups.
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