Change time unit in MetadataCleaner to seconds

core/src/main/scala/spark/util/MetadataCleaner.scala

@@ -9,7 +9,6 @@ import spark.Logging
  * Runs a timer task to periodically clean up metadata (e.g. old files or hashtable entries)
  */
 class MetadataCleaner(name: String, cleanupFunc: (Long) => Unit) extends Logging {
-
   val delaySeconds = MetadataCleaner.getDelaySeconds
   val periodSeconds = math.max(10, delaySeconds / 10)
   val timer = new Timer(name + " cleanup timer", true)
@@ -39,7 +38,7 @@ class MetadataCleaner(name: String, cleanupFunc: (Long) => Unit) extends Logging
 
 
 object MetadataCleaner {
-  def getDelaySeconds = (System.getProperty("spark.cleaner.delay", "-100").toDouble * 60).toInt
-  def setDelaySeconds(delay: Long) { System.setProperty("spark.cleaner.delay", delay.toString) }
+  def getDelaySeconds = System.getProperty("spark.cleaner.delay", "-1").toInt
+  def setDelaySeconds(delay: Int) { System.setProperty("spark.cleaner.delay", delay.toString) }
 }