Github user steveloughran commented on a diff in the pull request:

    https://github.com/apache/spark/pull/14371#discussion_r72451702
  
    --- Diff: 
core/src/main/scala/org/apache/spark/scheduler/EventLoggingListener.scala ---
    @@ -90,8 +90,13 @@ private[spark] class EventLoggingListener(
        * Creates the log file in the configured log directory.
        */
       def start() {
    -    if (!fileSystem.getFileStatus(new Path(logBaseDir)).isDirectory) {
    -      throw new IllegalArgumentException(s"Log directory $logBaseDir does 
not exist.")
    +    try {
    +      if (!fileSystem.getFileStatus(new Path(logBaseDir)).isDirectory) {
    +        throw new IllegalArgumentException(s"Log directory $logBaseDir is 
not a directory.")
    +      }
    +    } catch {
    +      case f: FileNotFoundException =>
    --- End diff --
    
    I'll let it go up untouched. Less code, less maintenance


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