fix code style

Author: Rui Li

core/src/main/scala/org/apache/spark/scheduler/TaskSchedulerImpl.scala

@@ -212,7 +212,7 @@ private[spark] class TaskSchedulerImpl(
     SparkEnv.set(sc.env)
 
     // Mark each slave as alive and remember its hostname
-    //also track if new executor is added
+    // Also track if new executor is added
     var newExecAvail = false
     for (o <- offers) {
       executorIdToHost(o.executorId) = o.host
@@ -232,15 +232,15 @@ private[spark] class TaskSchedulerImpl(
     for (taskSet <- sortedTaskSets) {
       logDebug("parentName: %s, name: %s, runningTasks: %s".format(
         taskSet.parent.name, taskSet.name, taskSet.runningTasks))
+      if (delaySchedule && newExecAvail) {
+        taskSet.reAddPendingTasks()
+      }
     }
 
     // Take each TaskSet in our scheduling order, and then offer it each node in increasing order
     // of locality levels so that it gets a chance to launch local tasks on all of them.
     var launchedTask = false
     for (taskSet <- sortedTaskSets; maxLocality <- TaskLocality.values) {
-      if (delaySchedule && newExecAvail) {
-        taskSet.reAddPendingTasks()
-      }
       do {
         launchedTask = false
         for (i <- 0 until shuffledOffers.size) {

core/src/main/scala/org/apache/spark/scheduler/TaskSetManager.scala

@@ -196,8 +196,7 @@ private[spark] class TaskSetManager(
       }
     }
 
-    if (tasks(index).preferredLocations.isEmpty ||
-      (!delaySchedule && !hadAliveLocations)) {
+    if (tasks(index).preferredLocations.isEmpty || (!delaySchedule && !hadAliveLocations)) {
       // Even though the task might've had preferred locations, all of those hosts or executors
       // are dead; put it in the no-prefs list so we can schedule it elsewhere right away.
       addTo(pendingTasksWithNoPrefs)
@@ -744,7 +743,8 @@ private[spark] class TaskSetManager(
   //Re-compute the pending lists. This should be called when new executor is added
   def reAddPendingTasks() {
     logInfo("Re-computing pending task lists.")
-    for (i <- (0 until numTasks).reverse.filter(index => copiesRunning(index) == 0 && !successful(index))) {
+    for (i <- (0 until numTasks).reverse.filter(index => copiesRunning(index) == 0
+      && !successful(index))) {
       addPendingTask(i, readding = true)
     }
   }