[jira] [Assigned] (SPARK-19530) Use guava weigher for code cache eviction

2017-02-08 Thread Apache Spark (JIRA)

 [ 
https://issues.apache.org/jira/browse/SPARK-19530?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Apache Spark reassigned SPARK-19530:


Assignee: Apache Spark

> 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
>Assignee: Apache Spark
>
> 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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[jira] [Assigned] (SPARK-19530) Use guava weigher for code cache eviction

2017-02-08 Thread Apache Spark (JIRA)

 [ 
https://issues.apache.org/jira/browse/SPARK-19530?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Apache Spark reassigned SPARK-19530:


Assignee: (was: Apache Spark)

> 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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