Hi Set up project under Eclipse using Maven:
<dependency> <groupId>org.apache.spark</groupId> <artifactId>spark-core_2.10</artifactId> <version>1.0.0</version> </dependency> Simple example fails: def main(args: Array[String]): Unit = { val conf = new SparkConf() .setMaster("local") .setAppName("CountingSheep") .set("spark.executor.memory", "1g") val sc = new SparkContext(conf) val indir = "src/main/resources/testdata" val files = sc.wholeTextFiles(indir, 10) for( pair <- files) println(pair._1 + " = " + pair._2) 14/06/03 19:20:34 ERROR executor.Executor: Exception in task ID 0 java.lang.RuntimeException: java.lang.reflect.InvocationTargetException at org.apache.hadoop.mapreduce.lib.input.CombineFileRecordReader.initNextRecordReader(CombineFileRecordReader.java:164) at org.apache.hadoop.mapreduce.lib.input.CombineFileRecordReader.<init>(CombineFileRecordReader.java:126) at org.apache.spark.input.WholeTextFileInputFormat.createRecordReader(WholeTextFileInputFormat.scala:44) at org.apache.spark.rdd.NewHadoopRDD$$anon$1.<init>(NewHadoopRDD.scala:111) at org.apache.spark.rdd.NewHadoopRDD.compute(NewHadoopRDD.scala:99) at org.apache.spark.rdd.NewHadoopRDD.compute(NewHadoopRDD.scala:61) at org.apache.spark.rdd.RDD.computeOrReadCheckpoint(RDD.scala:262) at org.apache.spark.rdd.RDD.iterator(RDD.scala:229) at org.apache.spark.scheduler.ResultTask.runTask(ResultTask.scala:111) at org.apache.spark.scheduler.Task.run(Task.scala:51) at org.apache.spark.executor.Executor$TaskRunner.run(Executor.scala:187) at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908) at java.lang.Thread.run(Thread.java:662) Caused by: java.lang.reflect.InvocationTargetException at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:39) at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27) at java.lang.reflect.Constructor.newInstance(Constructor.java:513) at org.apache.hadoop.mapreduce.lib.input.CombineFileRecordReader.initNextRecordReader(CombineFileRecordReader.java:155) ... 13 more Caused by: java.lang.IncompatibleClassChangeError: Found class org.apache.hadoop.mapreduce.TaskAttemptContext, but interface was expected at org.apache.spark.input.WholeTextFileRecordReader.<init>(WholeTextFileRecordReader.scala:40) ... 18 more Any idea? thanks toivo -- View this message in context: http://apache-spark-user-list.1001560.n3.nabble.com/wholeTextFiles-java-lang-IncompatibleClassChangeError-Found-class-org-apache-hadoop-mapreduce-TaskAtd-tp6818.html Sent from the Apache Spark User List mailing list archive at Nabble.com.