Github user lianhuiwang commented on a diff in the pull request:
https://github.com/apache/spark/pull/3233#discussion_r23826046
--- Diff: core/src/main/scala/org/apache/spark/deploy/SparkSubmit.scala ---
@@ -327,8 +326,14 @@ object SparkSubmit {
printStream.println("\n")
}
- val loader = new ExecutorURLClassLoader(new Array[URL](0),
- Thread.currentThread.getContextClassLoader)
+ val loader =
+ if (sysProps.getOrElse("spark.driver.userClassPathFirst",
"false").toBoolean) {
+ new ChildFirstURLClassLoader(new Array[URL](0),
--- End diff --
i think we just use ChildExecutorURLClassLoader and ExecutorURLClassLoader
that it has existed. so we reduce code to change.
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