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Posted to issues@spark.apache.org by "Apache Spark (JIRA)" <ji...@apache.org> on 2016/06/03 23:05:59 UTC

[jira] [Assigned] (SPARK-15762) Cache Metadata.hashCode and use a singleton for Metadata.empty

     [ https://issues.apache.org/jira/browse/SPARK-15762?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Apache Spark reassigned SPARK-15762:
------------------------------------

    Assignee: Apache Spark  (was: Josh Rosen)

> Cache Metadata.hashCode and use a singleton for Metadata.empty
> --------------------------------------------------------------
>
>                 Key: SPARK-15762
>                 URL: https://issues.apache.org/jira/browse/SPARK-15762
>             Project: Spark
>          Issue Type: Improvement
>          Components: SQL
>            Reporter: Josh Rosen
>            Assignee: Apache Spark
>
> In Spark SQL we should cache Metadata.hashCode and use a singleton for Metadata.empty since calculating empty metadata hashCodes appears to be an bottleneck according to certain profiler results.



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