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From Shivaram Venkataraman <shiva...@eecs.berkeley.edu>
Subject Re: SparkR package path
Date Wed, 23 Sep 2015 02:21:36 GMT
As Rui says it would be good to understand the use case we want to
support (supporting CRAN installs could be one for example). I don't
think it should be very hard to do as the RBackend itself doesn't use
the R source files. The RRDD does use it and the value comes from
https://github.com/apache/spark/blob/master/core/src/main/scala/org/apache/spark/api/r/RUtils.scala#L29
AFAIK -- So we could introduce a new config flag that can be used for
this new mode.

Thanks
Shivaram

On Mon, Sep 21, 2015 at 8:15 PM, Sun, Rui <rui.sun@intel.com> wrote:
> Hossein,
>
>
>
> Any strong reason to download and install SparkR source package separately
> from the Spark distribution?
>
> An R user can simply download the spark distribution, which contains SparkR
> source and binary package, and directly use sparkR. No need to install
> SparkR package at all.
>
>
>
> From: Hossein [mailto:falaki@gmail.com]
> Sent: Tuesday, September 22, 2015 9:19 AM
> To: dev@spark.apache.org
> Subject: SparkR package path
>
>
>
> Hi dev list,
>
>
>
> SparkR backend assumes SparkR source files are located under
> "SPARK_HOME/R/lib/." This directory is created by running R/install-dev.sh.
> This setting makes sense for Spark developers, but if an R user downloads
> and installs SparkR source package, the source files are going to be in
> placed different locations.
>
>
>
> In the R runtime it is easy to find location of package files using
> path.package("SparkR"). But we need to make some changes to R backend and/or
> spark-submit so that, JVM process learns the location of worker.R and
> daemon.R and shell.R from the R runtime.
>
>
>
> Do you think this change is feasible?
>
>
>
> Thanks,
>
> --Hossein

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