gengliangwang commented on code in PR #46309:
URL: https://github.com/apache/spark/pull/46309#discussion_r1585532948


##########
core/src/main/scala/org/apache/spark/SparkConf.scala:
##########
@@ -507,11 +508,11 @@ class SparkConf(loadDefaults: Boolean) extends Cloneable 
with Logging with Seria
     // Used by Yarn in 1.1 and before
     sys.props.get("spark.driver.libraryPath").foreach { value =>
       val warning =
-        s"""
-          |spark.driver.libraryPath was detected (set to '$value').
+        log"""
+          |spark.driver.libraryPath was detected (set to '${MDC(CONFIG_VALUE, 
value)}').
           |This is deprecated in Spark 1.2+.
           |
-          |Please instead use: ${DRIVER_LIBRARY_PATH.key}
+          |Please instead use: ${MDC(DRIVER_LIBRARY_PATH_KEY, 
DRIVER_LIBRARY_PATH.key)}

Review Comment:
   ```suggestion
             |Please instead use: ${MDC(CONFIG, DRIVER_LIBRARY_PATH.key)}
   ```



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