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https://issues.apache.org/jira/browse/SPARK-2995?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14094973#comment-14094973
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Apache Spark commented on SPARK-2995:
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User 'mengxr' has created a pull request for this issue:
https://github.com/apache/spark/pull/1913
> Allow to set storage level for intermediate RDDs in ALS
> -------------------------------------------------------
>
> Key: SPARK-2995
> URL: https://issues.apache.org/jira/browse/SPARK-2995
> Project: Spark
> Issue Type: New Feature
> Components: MLlib
> Reporter: Xiangrui Meng
> Assignee: Xiangrui Meng
>
> As mentioned in [SPARK-2465], using MEMORY_AND_DISK_SER together with
> spark.rdd.compress=true can help reduce the space requirement by a lot, at
> the cost of speed. It might be useful to add this option so people can run
> ALS on much bigger datasets.
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