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https://issues.apache.org/jira/browse/SPARK-1911?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Andrew Or updated SPARK-1911:
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Summary: Warn users that jars should be built with Java 6 for YARN (was:
Warn users that jars should be built with Java 6 for PySpark to work on YARN)
> Warn users that jars should be built with Java 6 for YARN
> ---------------------------------------------------------
>
> Key: SPARK-1911
> URL: https://issues.apache.org/jira/browse/SPARK-1911
> Project: Spark
> Issue Type: Sub-task
> Components: Documentation
> Reporter: Andrew Or
> Fix For: 1.0.0
>
>
> Python sometimes fails to read jars created by Java 7. This is necessary for
> PySpark to work in YARN, and so Spark assembly JAR should compiled in Java 6
> for PySpark to work on YARN.
> Currently we warn users only in make-distribution.sh, but most users build
> the jars directly. We should emphasize it in the docs especially for PySpark
> and YARN because this issue is not trivial to debug.
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