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https://issues.apache.org/jira/browse/SPARK-1920?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Reynold Xin updated SPARK-1920:
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Priority: Blocker (was: Major)
> Spark JAR compiled with Java 7 leads to PySpark not working in YARN
> -------------------------------------------------------------------
>
> Key: SPARK-1920
> URL: https://issues.apache.org/jira/browse/SPARK-1920
> Project: Spark
> Issue Type: Bug
> Components: PySpark, YARN
> Affects Versions: 1.0.0
> Reporter: Tathagata Das
> Priority: Blocker
>
> Current (Spark 1.0) implementation of PySpark on Yarn requires python to be
> able to read Spark assembly JAR. But Spark assembly JAR compiled with Java 7
> can sometimes be not readable by python. This can be due to the fact that
> JARs created by Java 7 with more 2^16 files is encoded in Zip64, which python
> cant read.
> [SPARK-1911|https://issues.apache.org/jira/browse/SPARK-1911] warns users
> from using Java 7 when creating Spark distribution.
> One way to fix this is to put pyspark in a different smaller JAR than rest of
> Spark so that it is readable by python.
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