Filter rLibDir by exists so that daemon.R references the correct file #460
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dvogelbacher
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robert3005
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## Upstream SPARK-XXXXX ticket and PR link (if not applicable, explain) Not filed in upstream, touches code for conda. ## What changes were proposed in this pull request? rLibDir contains a sequence of possible paths for the SparkR package on the executor and is passed on to the R daemon with the SPARKR_RLIBDIR environment variable. This PR filters rLibDir for paths that exist before setting SPARKR_RLIBDIR, retaining existing functionality to preferentially choose a YARN or local SparkR install over conda if both are present. See daemon.R: https://github.com/palantir/spark/blob/master/R/pkg/inst/worker/daemon.R#L23 Fixes #456 ## How was this patch tested? Manually testing cherry picked on older version Please review http://spark.apache.org/contributing.html before opening a pull request.
robert3005
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Upstream SPARK-XXXXX ticket and PR link (if not applicable, explain)
Not filed in upstream, touches code for conda.
What changes were proposed in this pull request?
rLibDir contains a sequence of possible paths for the SparkR package on the executor and is passed on to the R daemon with the SPARKR_RLIBDIR environment variable. This PR filters rLibDir for paths that exist before setting SPARKR_RLIBDIR, retaining existing functionality to preferentially choose a YARN or local SparkR install over conda if both are present.
See daemon.R: https://github.com/palantir/spark/blob/master/R/pkg/inst/worker/daemon.R#L23
Fixes #456
How was this patch tested?
Manually testing cherry picked on older version
Please review http://spark.apache.org/contributing.html before opening a pull request.