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https://issues.apache.org/jira/browse/KAFKA-14615?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17676239#comment-17676239
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Kamalesh Palanisamy commented on KAFKA-14615:
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[~divijvaidya] I am looking into this issue now. I am new to the project, so it
will take some time for me to open the PR. I hope that's fine!
> Use sizeCompare(Iterable[_]) to compare two iterables
> -----------------------------------------------------
>
> Key: KAFKA-14615
> URL: https://issues.apache.org/jira/browse/KAFKA-14615
> Project: Kafka
> Issue Type: Improvement
> Reporter: Divij Vaidya
> Assignee: Kamalesh Palanisamy
> Priority: Minor
> Labels: Newbie, newbie
> Fix For: 4.0.0
>
>
> Since Scala 2.12 is being deprecated in 4.x version, we can utilize some
> improved methods for comparing size of scala collections which were
> introduced starting 2.13.
> This task is to find and replace usage of code paths where we use
> (IterableA.size == IterableB.size) having a complexity of O(IterableA size +
> IterableB size) with sizeCompare() method which has a complexity of
> O(min(IterableA size, IterableB size))
> Some examples where sizeCompare() could be used are:
> 1.
> [https://github.com/apache/kafka/blob/78d4458b94e585bc602a4ae307d3de54fcedf2af/core/src/main/scala/kafka/server/KafkaApis.scala#L1177]
> 2.
> [https://github.com/apache/kafka/blob/78d4458b94e585bc602a4ae307d3de54fcedf2af/core/src/main/scala/kafka/tools/JmxTool.scala#L215]
>
> 3.
> [1] [https://github.com/scala/scala/pull/6758]
> [2] [https://github.com/scala/scala/pull/6950]
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