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https://issues.apache.org/jira/browse/SPARK-18817?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15753414#comment-15753414
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Felix Cheung commented on SPARK-18817:
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It looks like javax.jdo.option.ConnectionURL can also be set in Hive-site.xml?
In that sense we should only change javax.jdo.option.ConnectionURL and
spark.sql.default.warehouse.dir when they are not set in conf or hive-site, and
we need to handle both for a complete fix.
> Ensure nothing is written outside R's tempdir() by default
> ----------------------------------------------------------
>
> Key: SPARK-18817
> URL: https://issues.apache.org/jira/browse/SPARK-18817
> Project: Spark
> Issue Type: Sub-task
> Components: SparkR
> Reporter: Brendan Dwyer
> Priority: Critical
>
> Per CRAN policies
> https://cran.r-project.org/web/packages/policies.html
> {quote}
> - Packages should not write in the users’ home filespace, nor anywhere else
> on the file system apart from the R session’s temporary directory (or during
> installation in the location pointed to by TMPDIR: and such usage should be
> cleaned up). Installing into the system’s R installation (e.g., scripts to
> its bin directory) is not allowed.
> Limited exceptions may be allowed in interactive sessions if the package
> obtains confirmation from the user.
> - Packages should not modify the global environment (user’s workspace).
> {quote}
> Currently "spark-warehouse" gets created in the working directory when
> sparkR.session() is called.
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