Github user tgravescs commented on a diff in the pull request:
https://github.com/apache/spark/pull/3233#discussion_r22940429
--- Diff: core/src/main/scala/org/apache/spark/SparkConf.scala ---
@@ -373,4 +388,62 @@ private[spark] object SparkConf {
* Return whether the given config is a Spark port config.
*/
def isSparkPortConf(name: String): Boolean = name.startsWith("spark.")
&& name.endsWith(".port")
+
+ /**
+ * Returns the configuration key to use for the given user-provided key,
translating
+ * deprecated keys.
+ *
+ * @param userKey Configuration key from the user / caller.
+ * @param warn Whether to print a warning if the key is depreated.
Warnings will be printed
+ * only once for each key.
+ */
+ def getConfKey(userKey: String, warn: Boolean = false): String = {
--- End diff --
warn flag isn't being used
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