Michel Lemay created MAHOUT-1786:
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Summary: Make classes implements Serializable for Spark 1.5+
Key: MAHOUT-1786
URL: https://issues.apache.org/jira/browse/MAHOUT-1786
Project: Mahout
Issue Type: Improvement
Components: Math
Affects Versions: 0.11.0
Reporter: Michel Lemay
Priority: Minor
Spark 1.5 comes with a new very efficient serializer that uses code generation.
It is twice as fast as kryo. When using mahout, we have to set KryoSerializer
because some classes aren't serializable otherwise.
I suggest to declare Math classes as "implements Serializable" where needed.
For instance, to use coocurence package in spark 1.5, we had to modify
AbstractMatrix, AbstractVector, DenseVector and SparseRowMatrix to make it work
without Kryo.
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