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https://issues.apache.org/jira/browse/SPARK-11142?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Sean Owen reopened SPARK-11142:
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> org.datanucleus is already registered
> -------------------------------------
>
> Key: SPARK-11142
> URL: https://issues.apache.org/jira/browse/SPARK-11142
> Project: Spark
> Issue Type: Question
> Components: Spark Shell
> Affects Versions: 1.5.1
> Environment: Windows7 Home Basic
> Reporter: raicho
> Priority: Minor
>
> I first setup Spark this Wednesday on my computer. When I executed
> spark-shell.cmd, warns shows on the screen like "org.datanucleus is already
> registered. Ensure you don't have multiple JAR versions of the same plugin in
> the classpath. The URL "file:/c:/spark/lib/datanucleus-core-3.2.10.jar" is
> already registered and you are trying to register an identical plugin located
> at URL "file:/c:/spark/bin/../lib/datanucleus-core-3.2.10.jar" " and
> "org.datanucleus.api.jdo is already registered. Ensure you don't have
> multiple JAR versions of the same plugin in the classpath. The URL
> "file:/c:/spark/lib/datanucleus-core-3.2.6.jar" is already registered and you
> are trying to register an identical plugin located at URL
> "file:/c:/spark/bin/../lib/datanucleus-core-3.2.6.jar" "
> The two URLs shown in fact mean the same path. I tried to find the classpath
> in the configuration files but failed. No other codes outside has been
> executed on spark yet.
> What happened and how to deal with the warn?
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