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https://issues.apache.org/jira/browse/SPARK-1877?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Tathagata Das resolved SPARK-1877.
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Resolution: Fixed
Fix Version/s: 1.0.0
> ClassNotFoundException when loading RDD with serialized objects
> ---------------------------------------------------------------
>
> Key: SPARK-1877
> URL: https://issues.apache.org/jira/browse/SPARK-1877
> Project: Spark
> Issue Type: Bug
> Components: Spark Core
> Affects Versions: 1.0.0
> Environment: standalone Spark cluster, jdk 1.7
> Reporter: Bogdan Ghidireac
> Fix For: 1.0.0
>
>
> When I load a RDD that has custom serialized objects, Spark throws
> ClassNotFoundException. This happens only when Spark is deployed as a
> standalone cluster, it works fine when Spark is local.
> I debugged the issue and I noticed that ObjectInputStream.resolveClass does
> not use ExecutorURLClassLoader set by SparkSubmit. You have to explicitly set
> the classloader in SparkContext.objectFile for ObjectInputStream when
> deserializing objects.
> Utils.deserialize[Array[T]](...., Thread.currentThread.getContextClassLoader)
> I will attach a patch shortly...
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