warrenzhu25 commented on code in PR #42999:
URL: https://github.com/apache/spark/pull/42999#discussion_r1339337836


##########
core/src/main/scala/org/apache/spark/util/Utils.scala:
##########
@@ -2323,31 +2323,75 @@ private[spark] object Utils
    * configure a new log4j level
    */
   def setLogLevel(l: Level): Unit = {
-    val (ctx, loggerConfig) = getLogContext
+    val (ctx, loggerConfig) = getLogContext()
     loggerConfig.setLevel(l)
     ctx.updateLoggers()
 
     // Setting threshold to null as rootLevel will define log level for 
spark-shell
     Logging.sparkShellThresholdLevel = null
   }
 
+  /**
+   * configure a new log4j level for specific package or class
+   *
+   * @param name package or class name such as "org.apache.spark" or
+   *             "org.apache.spark.SparkContext"
+   * @param level new level of [[org.apache.log4j.Level]]
+   */
+  def setLogLevel(name: String, level: Level): Unit = {

Review Comment:
   Do you want me to remove old method `def setLogLevel(l: Level): Unit`, and 
calling new method instead?



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