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https://issues.apache.org/jira/browse/SPARK-5470?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Sean Owen resolved SPARK-5470.
------------------------------
Resolution: Fixed
Fix Version/s: 1.4.0
Issue resolved by pull request 4258
[https://github.com/apache/spark/pull/4258]
> use defaultClassLoader of Serializer to load classes of classesToRegister in
> KryoSerializer
> -------------------------------------------------------------------------------------------
>
> Key: SPARK-5470
> URL: https://issues.apache.org/jira/browse/SPARK-5470
> Project: Spark
> Issue Type: Bug
> Components: Spark Core
> Reporter: Lianhui Wang
> Fix For: 1.4.0
>
>
> Now KryoSerializer load classes of classesToRegister at the time of its
> initialization. when we set spark.kryo.classesToRegister=class1, it will
> throw SparkException("Failed to load class to register with Kryo".
> because in KryoSerializer's initialization, classLoader cannot include class
> of user's jars.
> we need to use defaultClassLoader of Serializer in newKryo(), because
> executor will reset defaultClassLoader of Serializer after Serializer's
> initialization.
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