- Default broadcast mechanism is set to DfsBroadcast

 - Configuration parameters are renamed to follow our convention
 - Master now automatically supplies its hostAddress instead of reading from config file
 - sendBroadcast has been removed from the Broadcast trait

src/scala/spark/BitTorrentBroadcast.scala

@@ -1047,7 +1047,7 @@ extends Logging {
   private var initialized = false
   private var isMaster_ = false
 
-  private var MasterHostAddress_ = "127.0.0.1"
+  private var MasterHostAddress_ = InetAddress.getLocalHost.getHostAddress
   private var MasterTrackerPort_ : Int = 11111
   private var BlockSize_ : Int = 512 * 1024
   private var MaxRetryCount_ : Int = 2
@@ -1079,40 +1079,38 @@ extends Logging {
   def initialize (isMaster__ : Boolean): Unit = {
     synchronized {
       if (!initialized) {
-        MasterHostAddress_ = 
-          System.getProperty ("spark.broadcast.MasterHostAddress", "127.0.0.1")
         MasterTrackerPort_ = 
-          System.getProperty ("spark.broadcast.MasterTrackerPort", "11111").toInt
+          System.getProperty ("spark.broadcast.masterTrackerPort", "11111").toInt
         BlockSize_ = 
-          System.getProperty ("spark.broadcast.BlockSize", "512").toInt * 1024
+          System.getProperty ("spark.broadcast.blockSize", "512").toInt * 1024
         MaxRetryCount_ = 
-          System.getProperty ("spark.broadcast.MaxRetryCount", "2").toInt          
+          System.getProperty ("spark.broadcast.maxRetryCount", "2").toInt          
 
         TrackerSocketTimeout_ = 
-          System.getProperty ("spark.broadcast.TrackerSocketTimeout", "50000").toInt
+          System.getProperty ("spark.broadcast.trackerSocketTimeout", "50000").toInt
         ServerSocketTimeout_ = 
-          System.getProperty ("spark.broadcast.ServerSocketTimeout", "10000").toInt
+          System.getProperty ("spark.broadcast.serverSocketTimeout", "10000").toInt
 
         MinKnockInterval_ = 
-          System.getProperty ("spark.broadcast.MinKnockInterval", "500").toInt
+          System.getProperty ("spark.broadcast.minKnockInterval", "500").toInt
         MaxKnockInterval_ = 
-          System.getProperty ("spark.broadcast.MaxKnockInterval", "999").toInt
+          System.getProperty ("spark.broadcast.maxKnockInterval", "999").toInt
 
         MaxPeersInGuideResponse_ = 
-          System.getProperty ("spark.broadcast.MaxPeersInGuideResponse", "4").toInt
+          System.getProperty ("spark.broadcast.maxPeersInGuideResponse", "4").toInt
 
         MaxRxPeers_ = 
-          System.getProperty ("spark.broadcast.MaxRxPeers", "4").toInt
+          System.getProperty ("spark.broadcast.maxRxPeers", "4").toInt
         MaxTxPeers_ = 
-          System.getProperty ("spark.broadcast.MaxTxPeers", "4").toInt
+          System.getProperty ("spark.broadcast.maxTxPeers", "4").toInt
 
         MaxChatTime_ = 
-          System.getProperty ("spark.broadcast.MaxChatTime", "250").toInt
+          System.getProperty ("spark.broadcast.maxChatTime", "250").toInt
         MaxChatBlocks_ = 
-          System.getProperty ("spark.broadcast.MaxChatBlocks", "1024").toInt        
+          System.getProperty ("spark.broadcast.maxChatBlocks", "1024").toInt        
 
         EndGameFraction_ = 
-          System.getProperty ("spark.broadcast.EndGameFraction", "1.0").toDouble
+          System.getProperty ("spark.broadcast.endGameFraction", "1.0").toDouble
 
         isMaster_ = isMaster__        
                   

src/scala/spark/Broadcast.scala

@@ -12,8 +12,6 @@ trait Broadcast[T] {
   // We cannot have an abstract readObject here due to some weird issues with 
   // readObject having to be 'private' in sub-classes. Possibly a Scala bug!
 
-  def sendBroadcast: Unit
-
   override def toString = "spark.Broadcast(" + uuid + ")"
 }
 
@@ -30,11 +28,12 @@ extends Logging {
   // Called by SparkContext or Executor before using Broadcast
   def initialize (isMaster: Boolean): Unit = synchronized {
     if (!initialized) {
-      val broadcastFactoryClass = System.getProperty("spark.broadcast.Factory",
-        "spark.BitTorrentBroadcastFactory")
+      val broadcastFactoryClass = System.getProperty("spark.broadcast.factory",
+        "spark.DfsBroadcastFactory")
       val booleanArgs = Array[AnyRef] (isMaster.asInstanceOf[AnyRef])
-//      broadcastFactory = Class.forName(broadcastFactoryClass).getConstructors()(0).newInstance(booleanArgs:_*).asInstanceOf[BroadcastFactory]
-      broadcastFactory = Class.forName(broadcastFactoryClass).newInstance.asInstanceOf[BroadcastFactory]
+
+      broadcastFactory = 
+        Class.forName(broadcastFactoryClass).newInstance.asInstanceOf[BroadcastFactory]
       
       // Initialize appropriate BroadcastFactory and BroadcastObject
       broadcastFactory.initialize(isMaster)

src/scala/spark/ChainedBroadcast.scala

@@ -729,7 +729,7 @@ extends Logging {
   private var initialized = false
   private var isMaster_ = false
 
-  private var MasterHostAddress_ = "127.0.0.1"
+  private var MasterHostAddress_ = InetAddress.getLocalHost.getHostAddress
   private var MasterTrackerPort_ : Int = 22222
   private var BlockSize_ : Int = 512 * 1024
   private var MaxRetryCount_ : Int = 2
@@ -745,24 +745,22 @@ extends Logging {
   def initialize (isMaster__ : Boolean): Unit = {
     synchronized {
       if (!initialized) {
-        MasterHostAddress_ = 
-          System.getProperty ("spark.broadcast.MasterHostAddress", "127.0.0.1")
         MasterTrackerPort_ = 
-          System.getProperty ("spark.broadcast.MasterTrackerPort", "22222").toInt
+          System.getProperty ("spark.broadcast.masterTrackerPort", "22222").toInt
         BlockSize_ = 
-          System.getProperty ("spark.broadcast.BlockSize", "512").toInt * 1024
+          System.getProperty ("spark.broadcast.blockSize", "512").toInt * 1024
         MaxRetryCount_ = 
-          System.getProperty ("spark.broadcast.MaxRetryCount", "2").toInt          
+          System.getProperty ("spark.broadcast.maxRetryCount", "2").toInt          
 
         TrackerSocketTimeout_ = 
-          System.getProperty ("spark.broadcast.TrackerSocketTimeout", "50000").toInt          
+          System.getProperty ("spark.broadcast.trackerSocketTimeout", "50000").toInt          
         ServerSocketTimeout_ = 
-          System.getProperty ("spark.broadcast.ServerSocketTimeout", "10000").toInt          
+          System.getProperty ("spark.broadcast.serverSocketTimeout", "10000").toInt          
 
         MinKnockInterval_ =
-          System.getProperty ("spark.broadcast.MinKnockInterval", "500").toInt
+          System.getProperty ("spark.broadcast.minKnockInterval", "500").toInt
         MaxKnockInterval_ =
-          System.getProperty ("spark.broadcast.MaxKnockInterval", "999").toInt
+          System.getProperty ("spark.broadcast.maxKnockInterval", "999").toInt
 
         isMaster_ = isMaster__        
                   

src/scala/spark/DfsBroadcast.scala

@@ -82,7 +82,7 @@ extends Logging {
           conf.setInt("dfs.replication", rep)
           fileSystem = FileSystem.get(new URI(dfs), conf)
         }
-        workDir = System.getProperty("spark.dfs.workdir", "/tmp")
+        workDir = System.getProperty("spark.dfs.workDir", "/tmp")
         compress = System.getProperty("spark.compress", "false").toBoolean
 
         initialized = true