Github user yanboliang commented on a diff in the pull request:
https://github.com/apache/spark/pull/15216#discussion_r80377484
--- Diff: R/pkg/R/context.R ---
@@ -231,17 +231,21 @@ setCheckpointDir <- function(sc, dirName) {
#' filesystems), or an HTTP, HTTPS or FTP URI. To access the file in Spark
jobs,
#' use spark.getSparkFiles(fileName) to find its download location.
#'
+#' A directory can be given if the recursive option is set to true.
+#' Currently directories are only supported for Hadoop-supported
filesystems.
--- End diff --
The annotation here is consistent with Scala/Python, and Hadoop-supported
filesystem is the file system which Hadoop supported. I think it's easy to
understand for users. Or could we add a link to Hadoop-supported filesystems?
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