tgravescs commented on a change in pull request #27722: [SPARK-30969][CORE] 
Remove resource coordination support from Standalone
URL: https://github.com/apache/spark/pull/27722#discussion_r385815769
 
 

 ##########
 File path: 
core/src/main/scala/org/apache/spark/deploy/StandaloneResourceUtils.scala
 ##########
 @@ -17,30 +17,21 @@
 
 package org.apache.spark.deploy
 
-import java.io.{File, RandomAccessFile}
-import java.nio.channels.{FileLock, OverlappingFileLockException}
+import java.io.File
 import java.nio.file.Files
 
 import scala.collection.mutable
-import scala.util.Random
 import scala.util.control.NonFatal
 
 import org.json4s.{DefaultFormats, Extraction}
-import org.json4s.jackson.JsonMethods.{compact, parse, render}
+import org.json4s.jackson.JsonMethods.{compact, render}
 
 import org.apache.spark.{SparkConf, SparkException}
 
 Review comment:
   SparkConf no longer needed

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