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Posted to issues@spark.apache.org by "Xiangrui Meng (JIRA)" <ji...@apache.org> on 2015/06/16 22:35:00 UTC

[jira] [Created] (SPARK-8400) ml.ALS doesn't handle -1 block size

Xiangrui Meng created SPARK-8400:
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             Summary: ml.ALS doesn't handle -1 block size
                 Key: SPARK-8400
                 URL: https://issues.apache.org/jira/browse/SPARK-8400
             Project: Spark
          Issue Type: Bug
          Components: ML
    Affects Versions: 1.3.1
            Reporter: Xiangrui Meng


Under spark.mllib, if number blocks is set to -1, we set the block size automatically based on the input partition size. However, this behavior is not preserved in the spark.ml API. If user sets -1 in Spark 1.3, it will not work, but no error messages will show.



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