You have a long lineage that causes the StackOverflow error. Try rdd.checkPoint() and rdd.count() for every 20~30 iterations. checkPoint can cut the lineage. -Xiangrui
On Mon, May 12, 2014 at 3:42 PM, Guanhua Yan <gh...@lanl.gov> wrote: > Dear Sparkers: > > I am using Python spark of version 0.9.0 to implement some iterative > algorithm. I got some errors shown at the end of this email. It seems that > it's due to the Java Stack Overflow error. The same error has been > duplicated on a mac desktop and a linux workstation, both running the same > version of Spark. > > The same line of code works correctly after quite some iterations. At the > line of error, rdd__new.count() could be 0. (In some previous rounds, this > was also 0 without any problem). > > Any thoughts on this? > > Thank you very much, > - Guanhua > > > ======================================== > CODE: print "round", round, rdd__new.count() > ======================================== > File > "/home1/ghyan/Software/spark-0.9.0-incubating-bin-hadoop2/python/pyspark/rdd.py", > line 542, in count > 14/05/12 16:20:28 INFO TaskSetManager: Loss was due to > java.lang.StackOverflowError [duplicate 1] > return self.mapPartitions(lambda i: [sum(1 for _ in i)]).sum() > 14/05/12 16:20:28 ERROR TaskSetManager: Task 8419.0:0 failed 1 times; > aborting job > File > "/home1/ghyan/Software/spark-0.9.0-incubating-bin-hadoop2/python/pyspark/rdd.py", > line 533, in sum > 14/05/12 16:20:28 INFO TaskSchedulerImpl: Ignoring update with state FAILED > from TID 1774 because its task set is gone > return self.mapPartitions(lambda x: [sum(x)]).reduce(operator.add) > File > "/home1/ghyan/Software/spark-0.9.0-incubating-bin-hadoop2/python/pyspark/rdd.py", > line 499, in reduce > vals = self.mapPartitions(func).collect() > File > "/home1/ghyan/Software/spark-0.9.0-incubating-bin-hadoop2/python/pyspark/rdd.py", > line 463, in collect > bytesInJava = self._jrdd.collect().iterator() > File > "/home1/ghyan/Software/spark-0.9.0-incubating-bin-hadoop2/python/lib/py4j-0.8.1-src.zip/py4j/java_gateway.py", > line 537, in __call__ > File > "/home1/ghyan/Software/spark-0.9.0-incubating-bin-hadoop2/python/lib/py4j-0.8.1-src.zip/py4j/protocol.py", > line 300, in get_return_value > py4j.protocol.Py4JJavaError: An error occurred while calling o4317.collect. > : org.apache.spark.SparkException: Job aborted: Task 8419.0:1 failed 1 times > (most recent failure: Exception failure: java.lang.StackOverflowError) > at > org.apache.spark.scheduler.DAGScheduler$$anonfun$org$apache$spark$scheduler$DAGScheduler$$abortStage$1.apply(DAGScheduler.scala:1028) > at > org.apache.spark.scheduler.DAGScheduler$$anonfun$org$apache$spark$scheduler$DAGScheduler$$abortStage$1.apply(DAGScheduler.scala:1026) > at > scala.collection.mutable.ResizableArray$class.foreach(ResizableArray.scala:59) > at scala.collection.mutable.ArrayBuffer.foreach(ArrayBuffer.scala:47) > at > org.apache.spark.scheduler.DAGScheduler.org$apache$spark$scheduler$DAGScheduler$$abortStage(DAGScheduler.scala:1026) > at > org.apache.spark.scheduler.DAGScheduler$$anonfun$processEvent$10.apply(DAGScheduler.scala:619) > at > org.apache.spark.scheduler.DAGScheduler$$anonfun$processEvent$10.apply(DAGScheduler.scala:619) > at scala.Option.foreach(Option.scala:236) > at > org.apache.spark.scheduler.DAGScheduler.processEvent(DAGScheduler.scala:619) > at > org.apache.spark.scheduler.DAGScheduler$$anonfun$start$1$$anon$2$$anonfun$receive$1.applyOrElse(DAGScheduler.scala:207) > at akka.actor.ActorCell.receiveMessage(ActorCell.scala:498) > at akka.actor.ActorCell.invoke(ActorCell.scala:456) > at akka.dispatch.Mailbox.processMailbox(Mailbox.scala:237) > at akka.dispatch.Mailbox.run(Mailbox.scala:219) > at > akka.dispatch.ForkJoinExecutorConfigurator$AkkaForkJoinTask.exec(AbstractDispatcher.scala:386) > at scala.concurrent.forkjoin.ForkJoinTask.doExec(ForkJoinTask.java:260) > at > scala.concurrent.forkjoin.ForkJoinPool$WorkQueue.runTask(ForkJoinPool.java:1339) > at scala.concurrent.forkjoin.ForkJoinPool.runWorker(ForkJoinPool.java:1979) > at > scala.concurrent.forkjoin.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:107) > > ====================================== > The stack overflow error is shown as follows: > ====================================== > > 14/05/12 16:20:28 ERROR Executor: Exception in task ID 1774 > java.lang.StackOverflowError > at java.util.zip.Inflater.inflate(Inflater.java:259) > at java.util.zip.InflaterInputStream.read(InflaterInputStream.java:152) > at java.util.zip.GZIPInputStream.read(GZIPInputStream.java:116) > at > java.io.ObjectInputStream$PeekInputStream.read(ObjectInputStream.java:2310) > at > java.io.ObjectInputStream$PeekInputStream.readFully(ObjectInputStream.java:2323) > at > java.io.ObjectInputStream$BlockDataInputStream.readInt(ObjectInputStream.java:2818) > at java.io.ObjectInputStream.readHandle(ObjectInputStream.java:1452) > at java.io.ObjectInputStream.readClassDesc(ObjectInputStream.java:1511) > at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1771) > at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1350) > at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1990) > at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1915) > at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1798) > at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1350) > at java.io.ObjectInputStream.readArray(ObjectInputStream.java:1706) > at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1344) > at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1990) > at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1915) > at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1798) > at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1350) > at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1990) > at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1915) > at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1798) > at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1350) > at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1990) > at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1915) > at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1798) > at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1350) > at java.io.ObjectInputStream.readObject(ObjectInputStream.java:370) > at scala.collection.immutable.$colon$colon.readObject(List.scala:362) > at sun.reflect.GeneratedMethodAccessor6.invoke(Unknown Source) > at > sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) > at java.lang.reflect.Method.invoke(Method.java:606) > at java.io.ObjectStreamClass.invokeReadObject(ObjectStreamClass.java:1017) > at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1893) > at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1798) > at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1350) > at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1990) > at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1915) > at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1798) > at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1350) > at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1990) > at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1915) > at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1798) > at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1350) > at java.io.ObjectInputStream.readObject(ObjectInputStream.java:370) > at scala.collection.immutable.$colon$colon.readObject(List.scala:362) > at sun.reflect.GeneratedMethodAccessor6.invoke(Unknown Source) > at > sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) > at java.lang.reflect.Method.invoke(Method.java:606) > at java.io.ObjectStreamClass.invokeReadObject(ObjectStreamClass.java:1017) > at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1893) > at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1798) > at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1350) > at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1990) > at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1915) > at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1798) > at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1350) > at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1990) > at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1915) > at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1798) > at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1350) > at java.io.ObjectInputStream.readObject(ObjectInputStream.java:370) > at scala.collection.immutable.$colon$colon.readObject(List.scala:362) > at sun.reflect.GeneratedMethodAccessor6.invoke(Unknown Source) > The above replicated many times after this … > ======================================
