Yuksel Akinci created GIRAPH-1185:

             Summary: Adding faster serialization classes.
                 Key: GIRAPH-1185
                 URL: https://issues.apache.org/jira/browse/GIRAPH-1185
             Project: Giraph
          Issue Type: Improvement
            Reporter: Yuksel Akinci

These changes add two new kryo serialization classes (KryoSimpleWritable and 
KryoSimpleWrapper) which disable reference tracking at the expense of not 
supporting recursive and nested structures. Disabling reference tracking 
significantly improves the serialization performance. One a sample pipeline, 
the running time reduced from 75 minutes to 5 minutes.

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