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https://issues.apache.org/jira/browse/SPARK-34309?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17280764#comment-17280764
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Apache Spark commented on SPARK-34309:
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User 'LuciferYang' has created a pull request for this issue:
https://github.com/apache/spark/pull/31517
> Use Caffeine instead of Guava Cache
> -----------------------------------
>
> Key: SPARK-34309
> URL: https://issues.apache.org/jira/browse/SPARK-34309
> Project: Spark
> Issue Type: Improvement
> Components: Spark Core, SQL
> Affects Versions: 3.2.0
> Reporter: Yang Jie
> Priority: Minor
> Attachments: image-2021-02-05-18-08-48-852.png, screenshot-1.png
>
>
> Caffeine is a high performance, near optimal caching library based on Java 8,
> it is used in a similar way to guava cache, but with better performance. The
> comparison results are as follow are on the [caffeine benchmarks
> |https://github.com/ben-manes/caffeine/wiki/Benchmarks]
> At the same time, caffeine has been used in some open source projects like
> Cassandra, Hbase, Neo4j, Druid, Spring and so on.
>
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