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https://issues.apache.org/jira/browse/SPARK-6069?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14341640#comment-14341640
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Pat Ferrel commented on SPARK-6069:
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I can try it. Are you suggesting an app change or a master conf change?
I need to add to conf/spar-default.conf?
spark.files.userClassPathFirst true
Or should I add that to the context via SparkConf?
> Deserialization Error ClassNotFound
> ------------------------------------
>
> Key: SPARK-6069
> URL: https://issues.apache.org/jira/browse/SPARK-6069
> Project: Spark
> Issue Type: Bug
> Components: Spark Core
> Affects Versions: 1.2.1
> Environment: Standalone one worker cluster on localhost, or any
> cluster
> Reporter: Pat Ferrel
>
> A class is contained in the jars passed in when creating a context. It is
> registered with kryo. The class (Guava HashBiMap) is created correctly from
> an RDD and broadcast but the deserialization fails with ClassNotFound.
> The work around is to hard code the path to the jar and make it available on
> all workers. Hard code because we are creating a library so there is no easy
> way to pass in to the app something like:
> spark.executor.extraClassPath /path/to/some.jar
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