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https://issues.apache.org/jira/browse/KAFKA-15034?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17727119#comment-17727119
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Yash Mayya commented on KAFKA-15034:
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Thanks for filing this ticket [~baz33]. I think what you're suggesting makes
sense and I've raised this PR which uses a HashSet for the include / exclude
fields in the ReplaceField SMT and adds a JMH benchmark to demonstrate the
performance improvements - [https://github.com/apache/kafka/pull/13776]
> Improvement of ReplaceField performance for long list
> -----------------------------------------------------
>
> Key: KAFKA-15034
> URL: https://issues.apache.org/jira/browse/KAFKA-15034
> Project: Kafka
> Issue Type: Improvement
> Components: KafkaConnect
> Affects Versions: 3.4.0
> Reporter: BDeus
> Assignee: Yash Mayya
> Priority: Minor
>
> SMTs ReplaceField use List<String> for include and exclude filter that use
> ArrayList internally.
> In case of long list of filter the complexity of arraylist _O(n )_ results in
> poor performance.
> Could we use HashSet implementation in ReplaceField class instead of the
> traditionnal ArrayList ?
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