8a51cfdcad
## What changes were proposed in this pull request? Support overriding the download url (include version directory) in an environment variable, `SPARKR_RELEASE_DOWNLOAD_URL` ## How was this patch tested? unit test, manually testing - snapshot build url - download when spark jar not cached - when spark jar is cached - RC build url - download when spark jar not cached - when spark jar is cached - multiple cached spark versions - starting with sparkR shell To use this, ``` SPARKR_RELEASE_DOWNLOAD_URL=http://this_is_the_url_to_spark_release_tgz R ``` then in R, ``` library(SparkR) # or specify lib.loc sparkR.session() ``` Author: Felix Cheung <felixcheung_m@hotmail.com> Closes #16248 from felixcheung/rinstallurl. |
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