Github user yanboliang commented on a diff in the pull request:
https://github.com/apache/spark/pull/17274#discussion_r106182427
--- Diff: R/pkg/R/context.R ---
@@ -345,7 +351,8 @@ spark.getSparkFilesRootDirectory <- function() {
#'}
#' @note spark.getSparkFiles since 2.1.0
spark.getSparkFiles <- function(fileName) {
- callJStatic("org.apache.spark.SparkFiles", "get", as.character(fileName))
+ rootDir <- spark.getSparkFilesRootDirectory()
+ paste0(rootDir, "/", as.character(fileName))
--- End diff --
Do you suggest to write as follow?
```
if (Sys.getenv("SPARKR_IS_RUNNING_ON_WORKER") == "") {
callJStatic("org.apache.spark.SparkFiles", "get",
as.character(fileName))
} else {
file.path(spark.getSparkFilesRootDirectory(), as.character(fileName))
}
```
It will check ```Sys.getenv("SPARKR_IS_RUNNING_ON_WORKER")``` twice for the
case of running on worker, since we always make this check in
```spark.getSparkFilesRootDirectory```. So I'm more prefer the current style.
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