GitHub user ghidi opened a pull request:
https://github.com/apache/spark/pull/821
SPARK-1877: ClassNotFoundException when loading RDD with serialized obje...
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.
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/ghidi/spark master
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/spark/pull/821.patch
To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:
This closes #821
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commit fee0c5d2a8eb4908a095616e706c9799844be1d7
Author: Ghidireac <bogd...@u448a5b0a73d45358d94a.ant.amazon.com>
Date: 2014-05-19T06:36:45Z
SPARK-1877: ClassNotFoundException when loading RDD with serialized objects
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