[jira] [Created] (TINKERPOP-1426) GryoSerializer should implement Java serialization interface

["Chen Xin Yu (JIRA)" <ji...@apache.org>]

Chen Xin Yu created TINKERPOP-1426:
--------------------------------------

             Summary: GryoSerializer should implement Java serialization interface
                 Key: TINKERPOP-1426
                 URL: https://issues.apache.org/jira/browse/TINKERPOP-1426
             Project: TinkerPop
          Issue Type: Bug
          Components: io
    Affects Versions: 3.2.1
            Reporter: Chen Xin Yu


In spark description for Serializer, there is:
 * Implementations of this trait should implement:
 *
 * 1. a zero-arg constructor or a constructor that accepts a [[org.apache.spark.SparkConf]]
 * as parameter. If both constructors are defined, the latter takes precedence.
 *
 * 2. Java serialization interface.

Tinkerepop Class GryoSerializer extends Serializer, but does not implement serialisation. It works well before Spark 2.0. But with Spark 2.0, with the change for SPARK-13926 for Dependency,scala. Gyro must implement Java serialisation interface, otherwise hundreds of test cases are failed as:
Caused by: org.apache.spark.SparkException: Job aborted due to stage failure: Task not serializable: java.io.NotSerializableException: org.apache.tinkerpop.gremlin.spark.structure.io.gryo.GryoSerializer
Serialization stack:
	- object not serializable (class: org.apache.tinkerpop.gremlin.spark.structure.io.gryo.GryoSerializer, value: org.apache.tinkerpop.gremlin.spark.structure.io.gryo.GryoSerializer@1b12ec8e)
	- field (class: org.apache.spark.ShuffleDependency, name: serializer, type: class org.apache.spark.serializer.Serializer)
	- object (class org.apache.spark.ShuffleDependency, org.apache.spark.ShuffleDependency@7a4f876a)
	- field (class: scala.Tuple2, name: _2, type: class java.lang.Object)
	- object (class scala.Tuple2, (MapPartitionsRDD[1] at mapToPair at InputFormatRDD.java:46,org.apache.spark.ShuffleDependency@7a4f876a))



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