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https://issues.apache.org/jira/browse/KAFKA-16616?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17846515#comment-17846515
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Cao Manh Dat commented on KAFKA-16616:
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Hi [~alyssahuang] , can I work on this item?
> refactor mergeWith in MetadataSnapshot
> --------------------------------------
>
> Key: KAFKA-16616
> URL: https://issues.apache.org/jira/browse/KAFKA-16616
> Project: Kafka
> Issue Type: Improvement
> Affects Versions: 3.7.0
> Reporter: Alyssa Huang
> Priority: Minor
>
> Right now we keep track of topic ids and partition metadata to add/update
> separately in mergeWith (e.g. two maps passed as arguments). This means we
> iterate over topic metadata twice which could be costly when we're dealing
> with a large number of updates.
> `updatePartitionLeadership` which calls `mergeWith` does something similarly
> (generates map of topic ids to update in a loop separate from the list of
> partition metadata to update) and should be refactored as well.
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