Hi, I am training a GMM with 10 gaussians on a 4 GB dataset(720,000 * 760).
The spark (1.3.1) job is allocated 120 executors with 6GB each and the
driver also has 6GB.
Spark Config Params:
.set("spark.hadoop.validateOutputSpecs",
"false").set("spark.dynamicAllocation.enabled",
"false").set("spark.driver.maxResultSize",
"4g").set("spark.default.parallelism", "300").set("spark.serializer",
"org.apache.spark.serializer.KryoSerializer").set("spark.kryoserializer.buffer.mb",
"500").set("spark.akka.frameSize", "256").set("spark.akka.timeout", "300")
However, at the aggregate step (Line 168)
val sums = breezeData.aggregate(ExpectationSum.zero(k, d))(compute.value, _
+= _)
I get OOM error and the application hangs indefinitely. Is this an issue or
am I missing something?
java.lang.OutOfMemoryError: Java heap space
at akka.util.CompactByteString$.apply(ByteString.scala:410)
at akka.util.ByteString$.apply(ByteString.scala:22)
at
akka.remote.transport.netty.TcpHandlers$class.onMessage(TcpSupport.scala:45)
at
akka.remote.transport.netty.TcpServerHandler.onMessage(TcpSupport.scala:57)
at
akka.remote.transport.netty.NettyServerHelpers$class.messageReceived(NettyHelpers.scala:43)
at
akka.remote.transport.netty.ServerHandler.messageReceived(NettyTransport.scala:180)
at
org.jboss.netty.channel.Channels.fireMessageReceived(Channels.java:296)
at
org.jboss.netty.handler.codec.frame.FrameDecoder.unfoldAndFireMessageReceived(FrameDecoder.java:462)
at
org.jboss.netty.handler.codec.frame.FrameDecoder.callDecode(FrameDecoder.java:443)
at
org.jboss.netty.handler.codec.frame.FrameDecoder.messageReceived(FrameDecoder.java:310)
at
org.jboss.netty.channel.Channels.fireMessageReceived(Channels.java:268)
at
org.jboss.netty.channel.Channels.fireMessageReceived(Channels.java:255)
at
org.jboss.netty.channel.socket.nio.NioWorker.read(NioWorker.java:88)
at
org.jboss.netty.channel.socket.nio.AbstractNioWorker.process(AbstractNioWorker.java:108)
at
org.jboss.netty.channel.socket.nio.AbstractNioSelector.run(AbstractNioSelector.java:318)
at
org.jboss.netty.channel.socket.nio.AbstractNioWorker.run(AbstractNioWorker.java:89)
at
org.jboss.netty.channel.socket.nio.NioWorker.run(NioWorker.java:178)
at
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
at java.lang.Thread.run(Thread.java:745)
15/05/04 16:23:38 ERROR util.Utils: Uncaught exception in thread
task-result-getter-2
java.lang.OutOfMemoryError: Java heap space
Exception in thread "task-result-getter-2" java.lang.OutOfMemoryError: Java
heap space
15/05/04 16:23:45 INFO scheduler.TaskSetManager: Finished task 1070.0 in
stage 6.0 (TID 8276) in 382069 ms on [] (160/3600)
15/05/04 16:23:54 WARN channel.DefaultChannelPipeline: An exception was
thrown by a user handler while handling an exception event ([id:
0xc57da871, ] EXCEPTION: java.lang.OutOfMemoryError: Java heap space)
java.lang.OutOfMemoryError: Java heap space
15/05/04 16:23:55 WARN channel.DefaultChannelPipeline: An exception was
thrown by a user handler while handling an exception event ([id:
0x3c3dbb0c, ] EXCEPTION: java.lang.OutOfMemoryError: Java heap space)
15/05/04 16:24:45 ERROR actor.ActorSystemImpl: Uncaught fatal error from
thread [sparkDriver-akka.remote.default-remote-dispatcher-6] shutting down
ActorSystem [sparkDriver]
Thanks!
Vinay
