[BEAM-1144] Spark runner fails to deserialize MicrobatchSource in cluster mode

• Type: Bug
• Status: Resolved
• Priority: P2
• Resolution: Fixed
• Fix Version/s: 0.5.0
• Component/s: runner-spark
• Assignee: Aviem Zur
• Reporter: Aviem Zur
• Created: 13/Dec/16 15:08
• Updated: 16/May/20 13:58
• Resolved: 02/Jan/17 11:08

Description

When running in cluster mode (yarn), spark runner fails on deserialization of MicrobatchSource

After changes made in BEAM-921 spark runner fails in cluster mode with the following:

16/12/12 04:27:01 ERROR ApplicationMaster: User class threw exception: org.apache.beam.sdk.Pipeline$PipelineExecutionException: com.esotericsoftware.kryo.KryoException: Error during Java deserialization.
org.apache.beam.sdk.Pipeline$PipelineExecutionException: com.esotericsoftware.kryo.KryoException: Error during Java deserialization.
	at org.apache.beam.runners.spark.SparkPipelineResult.beamExceptionFrom(SparkPipelineResult.java:72)
	at org.apache.beam.runners.spark.SparkPipelineResult.waitUntilFinish(SparkPipelineResult.java:115)
	at org.apache.beam.runners.spark.SparkPipelineResult.waitUntilFinish(SparkPipelineResult.java:101)
	at com.paypal.risk.platform.aleph.example.MapOnlyExample.main(MapOnlyExample.java:38)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:497)
	at org.apache.spark.deploy.yarn.ApplicationMaster$$anon$2.run(ApplicationMaster.scala:559)
Caused by: com.esotericsoftware.kryo.KryoException: Error during Java deserialization.
	at com.esotericsoftware.kryo.serializers.JavaSerializer.read(JavaSerializer.java:42)
	at com.esotericsoftware.kryo.Kryo.readClassAndObject(Kryo.java:729)
	at org.apache.spark.serializer.KryoDeserializationStream.readObject(KryoSerializer.scala:228)
	at org.apache.spark.serializer.DeserializationStream.readKey(Serializer.scala:169)
	at org.apache.spark.serializer.DeserializationStream$$anon$2.getNext(Serializer.scala:201)
	at org.apache.spark.serializer.DeserializationStream$$anon$2.getNext(Serializer.scala:198)
	at org.apache.spark.util.NextIterator.hasNext(NextIterator.scala:73)
	at scala.collection.Iterator$$anon$13.hasNext(Iterator.scala:371)
	at scala.collection.Iterator$$anon$11.hasNext(Iterator.scala:327)
	at org.apache.spark.util.CompletionIterator.hasNext(CompletionIterator.scala:32)
	at org.apache.spark.InterruptibleIterator.hasNext(InterruptibleIterator.scala:39)
	at scala.collection.Iterator$class.foreach(Iterator.scala:727)
	at org.apache.spark.InterruptibleIterator.foreach(InterruptibleIterator.scala:28)
	at org.apache.spark.streaming.rdd.MapWithStateRDDRecord$.updateRecordWithData(MapWithStateRDD.scala:55)
	at org.apache.spark.streaming.rdd.MapWithStateRDD.compute(MapWithStateRDD.scala:155)
	at org.apache.spark.rdd.RDD.computeOrReadCheckpoint(RDD.scala:313)
	at org.apache.spark.CacheManager.getOrCompute(CacheManager.scala:69)
	at org.apache.spark.rdd.RDD.iterator(RDD.scala:275)
	at org.apache.spark.rdd.MapPartitionsRDD.compute(MapPartitionsRDD.scala:38)
	at org.apache.spark.rdd.RDD.computeOrReadCheckpoint(RDD.scala:313)
	at org.apache.spark.rdd.RDD.iterator(RDD.scala:277)
	at org.apache.spark.rdd.MapPartitionsRDD.compute(MapPartitionsRDD.scala:38)
	at org.apache.spark.rdd.RDD.computeOrReadCheckpoint(RDD.scala:313)
	at org.apache.spark.CacheManager.getOrCompute(CacheManager.scala:69)
	at org.apache.spark.rdd.RDD.iterator(RDD.scala:275)
	at org.apache.spark.scheduler.ResultTask.runTask(ResultTask.scala:66)
	at org.apache.spark.scheduler.Task.run(Task.scala:89)
	at org.apache.spark.executor.Executor$TaskRunner.run(Executor.scala:227)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
	at java.lang.Thread.run(Thread.java:745)
Caused by: java.lang.ClassNotFoundException: org.apache.beam.runners.spark.io.MicrobatchSource
	at java.net.URLClassLoader.findClass(URLClassLoader.java:381)
	at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
	at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:331)
	at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
	at java.lang.Class.forName0(Native Method)
	at java.lang.Class.forName(Class.java:348)
	at java.io.ObjectInputStream.resolveClass(ObjectInputStream.java:626)
	at java.io.ObjectInputStream.readNonProxyDesc(ObjectInputStream.java:1613)
	at java.io.ObjectInputStream.readClassDesc(ObjectInputStream.java:1518)
	at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1774)
	at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1351)
	at java.io.ObjectInputStream.readObject(ObjectInputStream.java:371)
	at com.esotericsoftware.kryo.serializers.JavaSerializer.read(JavaSerializer.java:40)
	... 30 more

This seems to be caused by ClassLoader issues in the executor.

Reverting BEAM-921 dose not remedy the situation because the previous version, in turn fails to deserialize as well with:

java.lang.UnsupportedOperationException
	at com.google.common.collect.ImmutableCollection.add(ImmutableCollection.java:91)

Issue Links

• links to: GitHub Pull Request #1613
• links to: GitHub Pull Request #1613