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Posted to issues@spark.apache.org by "Xiangrui Meng (JIRA)" <ji...@apache.org> on 2014/08/13 02:38:11 UTC

[jira] [Created] (SPARK-2995) Allow to set storage level for intermediate RDDs in ALS

Xiangrui Meng created SPARK-2995:
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             Summary: 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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