[jira] [Created] (SPARK-18817) Ensure nothing is written outside R's tempdir() by default

["Brendan Dwyer (JIRA)" <ji...@apache.org>]

Brendan Dwyer created SPARK-18817:
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             Summary: 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


Per CRAN policies
https://cran.r-project.org/web/packages/policies.html
"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)."

Currently "spark-warehouse" gets created in the working directory when sparkR.session() is called.



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