Github user gatorsmile commented on a diff in the pull request:
https://github.com/apache/spark/pull/21771#discussion_r202531555
--- Diff: core/src/main/scala/org/apache/spark/SparkContext.scala ---
@@ -1555,6 +1559,9 @@ class SparkContext(config: SparkConf) extends Logging
{
Utils.fetchFile(uri.toString, new
File(SparkFiles.getRootDirectory()), conf,
env.securityManager, hadoopConfiguration, timestamp, useCache =
false)
postEnvironmentUpdate()
+ } else {
+ logWarning(s"The path $path has been added already. Overwriting of
added paths " +
--- End diff --
The notes are also reasonable to me. This is a common user error.
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