Velu nambi created SPARK-10361: ---------------------------------- Summary: model.predictAll() fails at user_product.first() Key: SPARK-10361 URL: https://issues.apache.org/jira/browse/SPARK-10361 Project: Spark Issue Type: Bug Components: MLlib, PySpark Affects Versions: 1.4.1, 1.3.1, 1.5.0 Environment: Windows 10, Python 2.7 and with all the three versions of Spark Reporter: Velu nambi
This code, adapted from the documentation, fails when calling PredictAll() after an ALS.train() 15/08/31 00:11:45 ERROR PythonRDD: Python worker exited unexpectedly (crashed) java.net.SocketException: Connection reset by peer: socket write error at java.net.SocketOutputStream.socketWrite0(Native Method) at java.net.SocketOutputStream.socketWrite(Unknown Source) at java.net.SocketOutputStream.write(Unknown Source) at java.io.BufferedOutputStream.write(Unknown Source) at java.io.DataOutputStream.write(Unknown Source) at java.io.FilterOutputStream.write(Unknown Source) at org.apache.spark.api.python.PythonRDD$.org$apache$spark$api$python$PythonRDD$$write$1(PythonRDD.scala:413) at org.apache.spark.api.python.PythonRDD$$anonfun$writeIteratorToStream$1.apply(PythonRDD.scala:425) at org.apache.spark.api.python.PythonRDD$$anonfun$writeIteratorToStream$1.apply(PythonRDD.scala:425) at scala.collection.Iterator$class.foreach(Iterator.scala:727) at org.apache.spark.InterruptibleIterator.foreach(InterruptibleIterator.scala:28) at org.apache.spark.api.python.PythonRDD$.writeIteratorToStream(PythonRDD.scala:425) at org.apache.spark.api.python.PythonRDD$WriterThread$$anonfun$run$3.apply(PythonRDD.scala:248) at org.apache.spark.util.Utils$.logUncaughtExceptions(Utils.scala:1772) at org.apache.spark.api.python.PythonRDD$WriterThread.run(PythonRDD.scala:208) 15/08/31 00:11:45 ERROR PythonRDD: This may have been caused by a prior exception: java.net.SocketException: Connection reset by peer: socket write error at java.net.SocketOutputStream.socketWrite0(Native Method) at java.net.SocketOutputStream.socketWrite(Unknown Source) at java.net.SocketOutputStream.write(Unknown Source) at java.io.BufferedOutputStream.write(Unknown Source) at java.io.DataOutputStream.write(Unknown Source) at java.io.FilterOutputStream.write(Unknown Source) at org.apache.spark.api.python.PythonRDD$.org$apache$spark$api$python$PythonRDD$$write$1(PythonRDD.scala:413) at org.apache.spark.api.python.PythonRDD$$anonfun$writeIteratorToStream$1.apply(PythonRDD.scala:425) at org.apache.spark.api.python.PythonRDD$$anonfun$writeIteratorToStream$1.apply(PythonRDD.scala:425) at scala.collection.Iterator$class.foreach(Iterator.scala:727) at org.apache.spark.InterruptibleIterator.foreach(InterruptibleIterator.scala:28) at org.apache.spark.api.python.PythonRDD$.writeIteratorToStream(PythonRDD.scala:425) at org.apache.spark.api.python.PythonRDD$WriterThread$$anonfun$run$3.apply(PythonRDD.scala:248) at org.apache.spark.util.Utils$.logUncaughtExceptions(Utils.scala:1772) at org.apache.spark.api.python.PythonRDD$WriterThread.run(PythonRDD.scala:208) 15/08/31 00:11:45 ERROR Executor: Exception in task 0.0 in stage 187.0 (TID 85) java.net.SocketException: Connection reset by peer: socket write error at java.net.SocketOutputStream.socketWrite0(Native Method) at java.net.SocketOutputStream.socketWrite(Unknown Source) at java.net.SocketOutputStream.write(Unknown Source) at java.io.BufferedOutputStream.write(Unknown Source) at java.io.DataOutputStream.write(Unknown Source) at java.io.FilterOutputStream.write(Unknown Source) at org.apache.spark.api.python.PythonRDD$.org$apache$spark$api$python$PythonRDD$$write$1(PythonRDD.scala:413) at org.apache.spark.api.python.PythonRDD$$anonfun$writeIteratorToStream$1.apply(PythonRDD.scala:425) at org.apache.spark.api.python.PythonRDD$$anonfun$writeIteratorToStream$1.apply(PythonRDD.scala:425) at scala.collection.Iterator$class.foreach(Iterator.scala:727) at org.apache.spark.InterruptibleIterator.foreach(InterruptibleIterator.scala:28) at org.apache.spark.api.python.PythonRDD$.writeIteratorToStream(PythonRDD.scala:425) at org.apache.spark.api.python.PythonRDD$WriterThread$$anonfun$run$3.apply(PythonRDD.scala:248) at org.apache.spark.util.Utils$.logUncaughtExceptions(Utils.scala:1772) at org.apache.spark.api.python.PythonRDD$WriterThread.run(PythonRDD.scala:208) 15/08/31 00:11:45 WARN TaskSetManager: Lost task 0.0 in stage 187.0 (TID 85, localhost): java.net.SocketException: Connection reset by peer: socket write error at java.net.SocketOutputStream.socketWrite0(Native Method) at java.net.SocketOutputStream.socketWrite(Unknown Source) at java.net.SocketOutputStream.write(Unknown Source) at java.io.BufferedOutputStream.write(Unknown Source) at java.io.DataOutputStream.write(Unknown Source) at java.io.FilterOutputStream.write(Unknown Source) at org.apache.spark.api.python.PythonRDD$.org$apache$spark$api$python$PythonRDD$$write$1(PythonRDD.scala:413) at org.apache.spark.api.python.PythonRDD$$anonfun$writeIteratorToStream$1.apply(PythonRDD.scala:425) at org.apache.spark.api.python.PythonRDD$$anonfun$writeIteratorToStream$1.apply(PythonRDD.scala:425) at scala.collection.Iterator$class.foreach(Iterator.scala:727) at org.apache.spark.InterruptibleIterator.foreach(InterruptibleIterator.scala:28) at org.apache.spark.api.python.PythonRDD$.writeIteratorToStream(PythonRDD.scala:425) at org.apache.spark.api.python.PythonRDD$WriterThread$$anonfun$run$3.apply(PythonRDD.scala:248) at org.apache.spark.util.Utils$.logUncaughtExceptions(Utils.scala:1772) at org.apache.spark.api.python.PythonRDD$WriterThread.run(PythonRDD.scala:208) 15/08/31 00:11:45 ERROR TaskSetManager: Task 0 in stage 187.0 failed 1 times; aborting job 15/08/31 00:11:45 INFO TaskSchedulerImpl: Removed TaskSet 187.0, whose tasks have all completed, from pool 15/08/31 00:11:45 INFO TaskSchedulerImpl: Cancelling stage 187 15/08/31 00:11:45 INFO DAGScheduler: ResultStage 187 (runJob at PythonRDD.scala:366) failed in 0.427 s 15/08/31 00:11:45 INFO DAGScheduler: Job 16 failed: runJob at PythonRDD.scala:366, took 0.434198 s Traceback (most recent call last): File "C:\Program Files (x86)\JetBrains\PyCharm Community Edition 4.5.3\helpers\pydev\pydevd.py", line 2358, in <module> globals = debugger.run(setup['file'], None, None, is_module) File "C:\Program Files (x86)\JetBrains\PyCharm Community Edition 4.5.3\helpers\pydev\pydevd.py", line 1778, in run pydev_imports.execfile(file, globals, locals) # execute the script File "C:/Users/thirumalaiv1/PycharmProjects/MovieLensALS/MovieLensALS.py", line 137, in <module> validationRmse = computeRmse(model, validation, numValidation) File "C:/Users/thirumalaiv1/PycharmProjects/MovieLensALS/MovieLensALS.py", line 49, in computeRmse predictions = model.predictAll(data).map(lambda x: ((x[0], x[1]), x[2])) File "C:\spark-1.4.1\python\pyspark\mllib\recommendation.py", line 126, in predictAll first = user_product.first() File "C:\spark-1.4.1\python\pyspark\rdd.py", line 1295, in first rs = self.take(1) File "C:\spark-1.4.1\python\pyspark\rdd.py", line 1277, in take res = self.context.runJob(self, takeUpToNumLeft, p, True) File "C:\spark-1.4.1\python\pyspark\context.py", line 897, in runJob allowLocal) File "C:\Users\thirumalaiv1\PyCharmVirtualEnv\MovieLensALSVirtEnv\lib\site-packages\py4j\java_gateway.py", line 813, in __call__ answer, self.gateway_client, self.target_id, self.name) File "C:\Users\thirumalaiv1\PyCharmVirtualEnv\MovieLensALSVirtEnv\lib\site-packages\py4j\protocol.py", line 308, in get_return_value format(target_id, ".", name), value) py4j.protocol.Py4JJavaError: An error occurred while calling z:org.apache.spark.api.python.PythonRDD.runJob. : org.apache.spark.SparkException: Job aborted due to stage failure: Task 0 in stage 187.0 failed 1 times, most recent failure: Lost task 0.0 in stage 187.0 (TID 85, localhost): java.net.SocketException: Connection reset by peer: socket write error at java.net.SocketOutputStream.socketWrite0(Native Method) at java.net.SocketOutputStream.socketWrite(Unknown Source) at java.net.SocketOutputStream.write(Unknown Source) at java.io.BufferedOutputStream.write(Unknown Source) at java.io.DataOutputStream.write(Unknown Source) at java.io.FilterOutputStream.write(Unknown Source) at org.apache.spark.api.python.PythonRDD$.org$apache$spark$api$python$PythonRDD$$write$1(PythonRDD.scala:413) at org.apache.spark.api.python.PythonRDD$$anonfun$writeIteratorToStream$1.apply(PythonRDD.scala:425) at org.apache.spark.api.python.PythonRDD$$anonfun$writeIteratorToStream$1.apply(PythonRDD.scala:425) at scala.collection.Iterator$class.foreach(Iterator.scala:727) at org.apache.spark.InterruptibleIterator.foreach(InterruptibleIterator.scala:28) at org.apache.spark.api.python.PythonRDD$.writeIteratorToStream(PythonRDD.scala:425) at org.apache.spark.api.python.PythonRDD$WriterThread$$anonfun$run$3.apply(PythonRDD.scala:248) at org.apache.spark.util.Utils$.logUncaughtExceptions(Utils.scala:1772) at org.apache.spark.api.python.PythonRDD$WriterThread.run(PythonRDD.scala:208) Driver stacktrace: at org.apache.spark.scheduler.DAGScheduler.org$apache$spark$scheduler$DAGScheduler$$failJobAndIndependentStages(DAGScheduler.scala:1273) at org.apache.spark.scheduler.DAGScheduler$$anonfun$abortStage$1.apply(DAGScheduler.scala:1264) at org.apache.spark.scheduler.DAGScheduler$$anonfun$abortStage$1.apply(DAGScheduler.scala:1263) at scala.collection.mutable.ResizableArray$class.foreach(ResizableArray.scala:59) at scala.collection.mutable.ArrayBuffer.foreach(ArrayBuffer.scala:47) at org.apache.spark.scheduler.DAGScheduler.abortStage(DAGScheduler.scala:1263) at org.apache.spark.scheduler.DAGScheduler$$anonfun$handleTaskSetFailed$1.apply(DAGScheduler.scala:730) at org.apache.spark.scheduler.DAGScheduler$$anonfun$handleTaskSetFailed$1.apply(DAGScheduler.scala:730) at scala.Option.foreach(Option.scala:236) at org.apache.spark.scheduler.DAGScheduler.handleTaskSetFailed(DAGScheduler.scala:730) at org.apache.spark.scheduler.DAGSchedulerEventProcessLoop.onReceive(DAGScheduler.scala:1457) at org.apache.spark.scheduler.DAGSchedulerEventProcessLoop.onReceive(DAGScheduler.scala:1418) at org.apache.spark.util.EventLoop$$anon$1.run(EventLoop.scala:48) -- This message was sent by Atlassian JIRA (v6.3.4#6332) --------------------------------------------------------------------- To unsubscribe, e-mail: issues-unsubscr...@spark.apache.org For additional commands, e-mail: issues-h...@spark.apache.org