Saleem Ansari created SPARK-18531: ------------------------------------- Summary: Apache Spark FPGrowth algorithm implementation fails with java.lang.StackOverflowError Key: SPARK-18531 URL: https://issues.apache.org/jira/browse/SPARK-18531 Project: Spark Issue Type: Bug Components: MLlib Affects Versions: 1.6.1 Reporter: Saleem Ansari
More details can be found here: https://gist.github.com/tuxdna/37a69b53e6f9a9442fa3b1d5e53c2acb Spark FPGrowth algorithm croaks with a small dataset as show below. $ spark-shell --master "local[*]" --driver-memory 5g Welcome to ____ __ / __/__ ___ _____/ /__ _\ \/ _ \/ _ `/ __/ '_/ /___/ .__/\_,_/_/ /_/\_\ version 1.6.1 /_/ Using Scala version 2.10.5 (OpenJDK 64-Bit Server VM, Java 1.8.0_102) Spark context available as sc. SQL context available as sqlContext. scala> import org.apache.spark.mllib.fpm.FPGrowth import org.apache.spark.mllib.fpm.FPGrowth scala> import org.apache.spark.rdd.RDD import org.apache.spark.rdd.RDD scala> import org.apache.spark.sql.SQLContext import org.apache.spark.sql.SQLContext scala> import org.apache.spark.{SparkConf, SparkContext} import org.apache.spark.{SparkConf, SparkContext} scala> val data = sc.textFile("bug.data") data: org.apache.spark.rdd.RDD[String] = bug.data MapPartitionsRDD[1] at textFile at <console>:31 scala> val transactions: RDD[Array[String]] = data.map(l => l.split(",").distinct) transactions: org.apache.spark.rdd.RDD[Array[String]] = MapPartitionsRDD[2] at map at <console>:33 scala> transactions.cache() res0: transactions.type = MapPartitionsRDD[2] at map at <console>:33 scala> val fpg = new FPGrowth().setMinSupport(0.05).setNumPartitions(10) fpg: org.apache.spark.mllib.fpm.FPGrowth = org.apache.spark.mllib.fpm.FPGrowth@66d62c59 scala> val model = fpg.run(transactions) model: org.apache.spark.mllib.fpm.FPGrowthModel[String] = org.apache.spark.mllib.fpm.FPGrowthModel@6e92f150 scala> model.freqItemsets.take(1).foreach { i => i.items.mkString("[", ",", "]") + ", " + i.freq } [Stage 3:> (0 + 2) / 2]16/11/21 23:56:14 ERROR Executor: Managed memory leak detected; size = 18068980 bytes, TID = 14 16/11/21 23:56:14 ERROR Executor: Exception in task 0.0 in stage 3.0 (TID 14) java.lang.StackOverflowError at org.xerial.snappy.Snappy.arrayCopy(Snappy.java:84) at org.xerial.snappy.SnappyOutputStream.rawWrite(SnappyOutputStream.java:273) at org.xerial.snappy.SnappyOutputStream.write(SnappyOutputStream.java:115) at org.apache.spark.io.SnappyOutputStreamWrapper.write(CompressionCodec.scala:202) at java.io.ObjectOutputStream$BlockDataOutputStream.drain(ObjectOutputStream.java:1877) at java.io.ObjectOutputStream$BlockDataOutputStream.setBlockDataMode(ObjectOutputStream.java:1786) at java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1495) at java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1432) at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1178) at java.io.ObjectOutputStream.defaultWriteFields(ObjectOutputStream.java:1548) -- 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