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https://issues.apache.org/jira/browse/SPARK-19530?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15859157#comment-15859157
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Apache Spark commented on SPARK-19530:
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User 'viirya' has created a pull request for this issue:
https://github.com/apache/spark/pull/16865
> Use guava weigher for code cache eviction
> -----------------------------------------
>
> Key: SPARK-19530
> URL: https://issues.apache.org/jira/browse/SPARK-19530
> Project: Spark
> Issue Type: Improvement
> Components: SQL
> Affects Versions: 2.1.0
> Reporter: Liang-Chi Hsieh
>
> We use guava cache to cache compiled codes for codegen. Currently we use
> number of entries (100 as maximum now) in the cache to determine when to
> evict older entries.
> However, the number of entries can't respond well to actually memory usage of
> cache entries. As we heavily rely codegen now and the generated codes can be
> large, we shouldn't use maximum of entries for code cache entry eviction.
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