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Posted to issues@spark.apache.org by "Xianyang Liu (JIRA)" <ji...@apache.org> on 2017/11/06 02:45:00 UTC

[jira] [Created] (SPARK-22450) Safely register class for mllib

Xianyang Liu created SPARK-22450:
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             Summary: Safely register class for mllib
                 Key: SPARK-22450
                 URL: https://issues.apache.org/jira/browse/SPARK-22450
             Project: Spark
          Issue Type: Improvement
          Components: Spark Core
    Affects Versions: 2.2.0
            Reporter: Xianyang Liu


There are still some algorithms based on mllib, such as KMeans.  For now, many mllib common class (such as: Vector, DenseVector, SparseVector, Matrix, DenseMatrix, SparseMatrix) are not registered in Kryo. So there are some performance issues for those object serialization or deserialization.

Previously dicussed: https://github.com/apache/spark/pull/19586



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