CODEWITHSUNDEEP
scalaapache-spark
catrapture
catrapture

Reputation: 1976

Spark: is there a way to print out classpath of both spark-shell and spark?

I can run a spark job successfully in the spark-shell but when its packages and run through spark-submit Im getting a NoSuchMethodError.

This indicates to me some sort of mismatch of classpaths. Is there a way I can compare the two classpaths? Some sort of logging statement?

Thanks!

15/05/28 12:46:46 ERROR Executor: Exception in task 1.0 in stage 0.0 (TID 1)
java.lang.NoSuchMethodError: scala.Predef$.ArrowAssoc(Ljava/lang/Object;)Ljava/lang/Object;
    at com.ldamodel.LdaModel$$anonfun$5$$anonfun$apply$5.apply(LdaModel.scala:22)
    at com.ldamodel.LdaModel$$anonfun$5$$anonfun$apply$5.apply(LdaModel.scala:22)
    at scala.collection.TraversableLike$$anonfun$map$1.apply(TraversableLike.scala:244)
    at scala.collection.TraversableLike$$anonfun$map$1.apply(TraversableLike.scala:244)
    at scala.collection.IndexedSeqOptimized$class.foreach(IndexedSeqOptimized.scala:33)
    at scala.collection.mutable.WrappedArray.foreach(WrappedArray.scala:34)
    at scala.collection.TraversableLike$class.map(TraversableLike.scala:244)
    at scala.collection.AbstractTraversable.map(Traversable.scala:105)
    at com.ldamodel.LdaModel$$anonfun$5.apply(LdaModel.scala:22)
    at com.ldamodel.LdaModel$$anonfun$5.apply(LdaModel.scala:22)
    at scala.collection.Iterator$$anon$13.hasNext(Iterator.scala:371)
    at org.apache.spark.util.collection.ExternalSorter.insertAll(ExternalSorter.scala:202)
    at org.apache.spark.shuffle.sort.SortShuffleWriter.write(SortShuffleWriter.scala:56)
    at org.apache.spark.scheduler.ShuffleMapTask.runTask(ShuffleMapTask.scala:68)
    at org.apache.spark.scheduler.ShuffleMapTask.runTask(ShuffleMapTask.scala:41)
    at org.apache.spark.scheduler.Task.run(Task.scala:64)
    at org.apache.spark.executor.Executor$TaskRunner.run(Executor.scala:203)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
    at java.lang.Thread.run(Thread.java:745)

Upvotes: 29

Views: 26229

Answers (4)

Justin Pihony
Justin Pihony

Reputation: 67075

I think this should work:

    import java.lang.ClassLoader
    val cl = ClassLoader.getSystemClassLoader
    cl.asInstanceOf[java.net.URLClassLoader].getURLs.foreach(println)

Upvotes: 41

NoUserException
NoUserException

Reputation: 681

This should do the trick without requiring any code changes:

--conf 'spark.driver.extraJavaOptions=-verbose:class'
--conf 'spark.executor.extraJavaOptions=-verbose:class'

Upvotes: 13

Daniel Zolnai
Daniel Zolnai

Reputation: 16910

Without modifying the code:

SPARK_PRINT_LAUNCH_COMMAND=true /usr/lib/spark/bin/spark-shell

Also works with spark-submit.

Upvotes: 27

stackexchanger
stackexchanger

Reputation: 230

/opt/spark/bin/compute-classpath.sh

Upvotes: -4

Related Questions