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))
--
This message was sent by Atlassian JIRA
(v6.3.4#6332)
