andrew - yes, i am using the PatternInputFormat from the blog post you referenced. I know how to set the pattern in configuration while writing a MR job, how do i do that from a spark shell?
-anurag On Tue, Apr 8, 2014 at 1:41 PM, Andrew Ash <and...@andrewash.com> wrote: > Are you using the PatternInputFormat from this blog post? > > > https://hadoopi.wordpress.com/2013/05/31/custom-recordreader-processing-string-pattern-delimited-records/ > > If so you need to set the pattern in the configuration before attempting to > read data with that InputFormat: > > String regex = "^[A-Za-z]{3},\\s\\d{2}\\s[A-Za-z]{3}.*"; > Configuration conf = new Configuration(true); > conf.set("record.delimiter.regex", regex); > > > On Tue, Apr 8, 2014 at 1:36 PM, Anurag <anurag.pha...@gmail.com> wrote: > > > Hi, > > I am able to read a custom input format in spark. > > scala> val inputRead = sc.newAPIHadoopFile("hdfs:// > > 127.0.0.1/user/cloudera/date_dataset/ > > > > > ",classOf[io.reader.PatternInputFormat],classOf[org.apache.hadoop.io.LongWritable],classOf[org.apache.hadoop.io.Text]) > > > > However, doing a > > inputRead.count() > > results in null pointer exception. > > 14/04/08 13:33:39 INFO FileInputFormat: Total input paths to process : 1 > > 14/04/08 13:33:39 INFO SparkContext: Starting job: count at <console>:15 > > 14/04/08 13:33:39 INFO DAGScheduler: Got job 8 (count at <console>:15) > with > > 1 output partitions (allowLocal=false) > > 14/04/08 13:33:39 INFO DAGScheduler: Final stage: Stage 9 (count at > > <console>:15) > > 14/04/08 13:33:39 INFO DAGScheduler: Parents of final stage: List() > > 14/04/08 13:33:39 INFO DAGScheduler: Missing parents: List() > > 14/04/08 13:33:39 INFO DAGScheduler: Submitting Stage 9 (NewHadoopRDD[19] > > at newAPIHadoopFile at <console>:12), which has no missing parents > > 14/04/08 13:33:39 INFO DAGScheduler: Submitting 1 missing tasks from > Stage > > 9 (NewHadoopRDD[19] at newAPIHadoopFile at <console>:12) > > 14/04/08 13:33:39 INFO TaskSchedulerImpl: Adding task set 9.0 with 1 > tasks > > 14/04/08 13:33:39 INFO TaskSetManager: Starting task 9.0:0 as TID 8 on > > executor localhost: localhost (PROCESS_LOCAL) > > 14/04/08 13:33:39 INFO TaskSetManager: Serialized task 9.0:0 as 1297 > bytes > > in 0 ms > > 14/04/08 13:33:39 INFO Executor: Running task ID 8 > > 14/04/08 13:33:39 INFO BlockManager: Found block broadcast_5 locally > > 14/04/08 13:33:39 INFO NewHadoopRDD: Input split: hdfs:// > > 127.0.0.1/user/cloudera/date_dataset/sample.txt:0+759 > > 14/04/08 13:33:39 WARN TaskSetManager: Lost TID 8 (task 9.0:0) > > 14/04/08 13:33:39 WARN TaskSetManager: Loss was due to > > java.lang.NullPointerException > > java.lang.NullPointerException > > at java.util.regex.Pattern.<init>(Pattern.java:1132) > > at java.util.regex.Pattern.compile(Pattern.java:823) > > at > > io.reader.PatternRecordReader.initialize(PatternRecordReader.java:42) > > at > > org.apache.spark.rdd.NewHadoopRDD$$anon$1.<init>(NewHadoopRDD.scala:96) > > at org.apache.spark.rdd.NewHadoopRDD.compute(NewHadoopRDD.scala:84) > > at org.apache.spark.rdd.NewHadoopRDD.compute(NewHadoopRDD.scala:48) > > at org.apache.spark.rdd.RDD.computeOrReadCheckpoint(RDD.scala:241) > > at org.apache.spark.rdd.RDD.iterator(RDD.scala:232) > > at > org.apache.spark.scheduler.ResultTask.runTask(ResultTask.scala:109) > > at org.apache.spark.scheduler.Task.run(Task.scala:53) > > at > > > > > org.apache.spark.executor.Executor$TaskRunner$$anonfun$run$1.apply$mcV$sp(Executor.scala:213) > > at > > > org.apache.spark.deploy.SparkHadoopUtil.runAsUser(SparkHadoopUtil.scala:49) > > at > > org.apache.spark.executor.Executor$TaskRunner.run(Executor.scala:178) > > 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) > > 14/04/08 13:33:39 ERROR TaskSetManager: Task 9.0:0 failed 1 times; > aborting > > job > > 14/04/08 13:33:39 INFO DAGScheduler: Failed to run count at <console>:15 > > 14/04/08 13:33:39 INFO TaskSchedulerImpl: Remove TaskSet 9.0 from pool > > 14/04/08 13:33:39 ERROR Executor: Exception in task ID 8 > > java.lang.NullPointerException > > at java.util.regex.Pattern.<init>(Pattern.java:1132) > > at java.util.regex.Pattern.compile(Pattern.java:823) > > at > > io.reader.PatternRecordReader.initialize(PatternRecordReader.java:42) > > at > > org.apache.spark.rdd.NewHadoopRDD$$anon$1.<init>(NewHadoopRDD.scala:96) > > at org.apache.spark.rdd.NewHadoopRDD.compute(NewHadoopRDD.scala:84) > > at org.apache.spark.rdd.NewHadoopRDD.compute(NewHadoopRDD.scala:48) > > at org.apache.spark.rdd.RDD.computeOrReadCheckpoint(RDD.scala:241) > > at org.apache.spark.rdd.RDD.iterator(RDD.scala:232) > > at > org.apache.spark.scheduler.ResultTask.runTask(ResultTask.scala:109) > > at org.apache.spark.scheduler.Task.run(Task.scala:53) > > at > > > > > org.apache.spark.executor.Executor$TaskRunner$$anonfun$run$1.apply$mcV$sp(Executor.scala:213) > > at > > > org.apache.spark.deploy.SparkHadoopUtil.runAsUser(SparkHadoopUtil.scala:49) > > at > > org.apache.spark.executor.Executor$TaskRunner.run(Executor.scala:178) > > 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) > > org.apache.spark.SparkException: Job aborted: Task 9.0:0 failed 1 times > > (most recent failure: Exception failure: java.lang.NullPointerException) > > 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) > > > > > > any idea what might be happening here? > > > > -anurag > > > > > > > > -- > > Twitter: @anuragphadke (https://twitter.com/#!/anuragphadke) > > > -- Twitter: @anuragphadke (https://twitter.com/#!/anuragphadke)
