Exception in thread "dag-scheduler-event-loop" java.lang.OutOfMemoryError: Java heap space
	at java.nio.HeapByteBuffer.<init>(HeapByteBuffer.java:57)
	at java.nio.ByteBuffer.allocate(ByteBuffer.java:335)
	at org.apache.spark.broadcast.TorrentBroadcast$$anonfun$3.apply(TorrentBroadcast.scala:286)
	at org.apache.spark.broadcast.TorrentBroadcast$$anonfun$3.apply(TorrentBroadcast.scala:286)
	at org.apache.spark.util.io.ChunkedByteBufferOutputStream.allocateNewChunkIfNeeded(ChunkedByteBufferOutputStream.scala:87)
	at org.apache.spark.util.io.ChunkedByteBufferOutputStream.write(ChunkedByteBufferOutputStream.scala:75)
	at net.jpountz.lz4.LZ4BlockOutputStream.flushBufferedData(LZ4BlockOutputStream.java:220)
	at net.jpountz.lz4.LZ4BlockOutputStream.write(LZ4BlockOutputStream.java:173)
	at java.io.ObjectOutputStream$BlockDataOutputStream.drain(ObjectOutputStream.java:1877)
	at java.io.ObjectOutputStream$BlockDataOutputStream.setBlockDataMode(ObjectOutputStream.java:1786)
	at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1189)
	at java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:348)
	at org.apache.spark.serializer.JavaSerializationStream.writeObject(JavaSerializer.scala:43)
	at org.apache.spark.broadcast.TorrentBroadcast$$anonfun$blockifyObject$2.apply(TorrentBroadcast.scala:291)
	at org.apache.spark.broadcast.TorrentBroadcast$$anonfun$blockifyObject$2.apply(TorrentBroadcast.scala:291)
	at org.apache.spark.util.Utils$.tryWithSafeFinally(Utils.scala:1377)
	at org.apache.spark.broadcast.TorrentBroadcast$.blockifyObject(TorrentBroadcast.scala:292)
	at org.apache.spark.broadcast.TorrentBroadcast.writeBlocks(TorrentBroadcast.scala:127)
	at org.apache.spark.broadcast.TorrentBroadcast.<init>(TorrentBroadcast.scala:88)
	at org.apache.spark.broadcast.TorrentBroadcastFactory.newBroadcast(TorrentBroadcastFactory.scala:34)
	at org.apache.spark.broadcast.BroadcastManager.newBroadcast(BroadcastManager.scala:62)
	at org.apache.spark.SparkContext.broadcast(SparkContext.scala:1481)
	at org.apache.spark.scheduler.DAGScheduler.submitMissingTasks(DAGScheduler.scala:1039)
	at org.apache.spark.scheduler.DAGScheduler.org$apache$spark$scheduler$DAGScheduler$$submitStage(DAGScheduler.scala:947)
	at org.apache.spark.scheduler.DAGScheduler.handleJobSubmitted(DAGScheduler.scala:891)
	at org.apache.spark.scheduler.DAGSchedulerEventProcessLoop.doOnReceive(DAGScheduler.scala:1777)
	at org.apache.spark.scheduler.DAGSchedulerEventProcessLoop.onReceive(DAGScheduler.scala:1769)
	at org.apache.spark.scheduler.DAGSchedulerEventProcessLoop.onReceive(DAGScheduler.scala:1758)
	at org.apache.spark.util.EventLoop$$anon$1.run(EventLoop.scala:48)
^[^Z