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Posted to issues@spark.apache.org by "Xiangrui Meng (JIRA)" <ji...@apache.org> on 2014/09/19 09:04:34 UTC

[jira] [Updated] (SPARK-3600) RDD[Double] doesn't use primitive arrays for caching

     [ https://issues.apache.org/jira/browse/SPARK-3600?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Xiangrui Meng updated SPARK-3600:
---------------------------------
    Summary: RDD[Double] doesn't use primitive arrays for caching  (was: RandomRDDs doesn't create primitive typed RDDs)

> RDD[Double] doesn't use primitive arrays for caching
> ----------------------------------------------------
>
>                 Key: SPARK-3600
>                 URL: https://issues.apache.org/jira/browse/SPARK-3600
>             Project: Spark
>          Issue Type: Bug
>          Components: MLlib
>    Affects Versions: 1.1.0
>            Reporter: Xiangrui Meng
>            Assignee: Xiangrui Meng
>
> RandomDataGenerator doesn't have a classTag or @specilaized. So the generated RDDs are RDDs of objects, that cause huge storage overhead.



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