Ho un'app Spark che funziona senza problemi in modalità locale, ma ho alcuni problemi durante l'invio al cluster Spark.
I messaggi di errore sono i seguenti:
16/06/24 15:42:06 WARN scheduler.TaskSetManager: Lost task 2.0 in stage 0.0 (TID 2, cluster-node-02): java.lang.ExceptionInInitializerError
at GroupEvolutionES$$anonfun$6.apply(GroupEvolutionES.scala:579)
at GroupEvolutionES$$anonfun$6.apply(GroupEvolutionES.scala:579)
at scala.collection.Iterator$$anon$14.hasNext(Iterator.scala:390)
at org.apache.spark.util.Utils$.getIteratorSize(Utils.scala:1595)
at org.apache.spark.rdd.RDD$$anonfun$count$1.apply(RDD.scala:1157)
at org.apache.spark.rdd.RDD$$anonfun$count$1.apply(RDD.scala:1157)
at org.apache.spark.SparkContext$$anonfun$runJob$5.apply(SparkContext.scala:1858)
at org.apache.spark.SparkContext$$anonfun$runJob$5.apply(SparkContext.scala:1858)
at org.apache.spark.scheduler.ResultTask.runTask(ResultTask.scala:66)
at org.apache.spark.scheduler.Task.run(Task.scala:89)
at org.apache.spark.executor.Executor$TaskRunner.run(Executor.scala:214)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
at java.lang.Thread.run(Thread.java:745)
Caused by: org.apache.spark.SparkException: A master URL must be set in your configuration
at org.apache.spark.SparkContext.<init>(SparkContext.scala:401)
at GroupEvolutionES$.<init>(GroupEvolutionES.scala:37)
at GroupEvolutionES$.<clinit>(GroupEvolutionES.scala)
... 14 more
16/06/24 15:42:06 WARN scheduler.TaskSetManager: Lost task 5.0 in stage 0.0 (TID 5, cluster-node-02): java.lang.NoClassDefFoundError: Could not initialize class GroupEvolutionES$
at GroupEvolutionES$$anonfun$6.apply(GroupEvolutionES.scala:579)
at GroupEvolutionES$$anonfun$6.apply(GroupEvolutionES.scala:579)
at scala.collection.Iterator$$anon$14.hasNext(Iterator.scala:390)
at org.apache.spark.util.Utils$.getIteratorSize(Utils.scala:1595)
at org.apache.spark.rdd.RDD$$anonfun$count$1.apply(RDD.scala:1157)
at org.apache.spark.rdd.RDD$$anonfun$count$1.apply(RDD.scala:1157)
at org.apache.spark.SparkContext$$anonfun$runJob$5.apply(SparkContext.scala:1858)
at org.apache.spark.SparkContext$$anonfun$runJob$5.apply(SparkContext.scala:1858)
at org.apache.spark.scheduler.ResultTask.runTask(ResultTask.scala:66)
at org.apache.spark.scheduler.Task.run(Task.scala:89)
at org.apache.spark.executor.Executor$TaskRunner.run(Executor.scala:214)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
at java.lang.Thread.run(Thread.java:745)
Nel codice sopra, GroupEvolutionES
è la classe principale. Il messaggio di errore dice "È necessario impostare un URL principale nella configurazione", ma ho fornito il parametro "--master" a spark-submit
.
Qualcuno che sa come risolvere questo problema?
Versione Spark: 1.6.1