[SPARK-4660] JavaSerializer uses wrong classloader

• Type: Bug
• Status: Resolved
• Priority: Critical
• Resolution: Fixed
• Affects Version/s: 1.1.0, 1.1.1
• Fix Version/s: 1.1.2, 1.2.1, 1.3.0
• Component/s: Spark Core
• Assignee: Piotr Kolaczkowski
• Reporter: Piotr Kolaczkowski
• Created: 30/Nov/14 14:24
• Updated: 04/Apr/15 16:00
• Resolved: 20/Jan/15 20:38

Description

During testing we found failures when trying to load some classes of the user application:

ERROR 2014-11-29 20:01:56 org.apache.spark.storage.BlockManagerWorker: Exception handling buffer message
java.lang.ClassNotFoundException: org.apache.spark.demo.HttpReceiverCases$HttpRequest
	at java.net.URLClassLoader$1.run(URLClassLoader.java:366)
	at java.net.URLClassLoader$1.run(URLClassLoader.java:355)
	at java.security.AccessController.doPrivileged(Native Method)
	at java.net.URLClassLoader.findClass(URLClassLoader.java:354)
	at java.lang.ClassLoader.loadClass(ClassLoader.java:425)
	at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:308)
	at java.lang.ClassLoader.loadClass(ClassLoader.java:358)
	at java.lang.Class.forName0(Native Method)
	at java.lang.Class.forName(Class.java:270)
	at org.apache.spark.serializer.JavaDeseriali
zationStream$$anon$1.resolveClass(JavaSerializer.scala:59)
	at java.io.ObjectInputStream.readNonProxyDesc(ObjectInputStream.java:1612)
	at java.io.ObjectInputStream.readClassDesc(ObjectInputStream.java:1517)
	at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1771)
	at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1350)
	at java.io.ObjectInputStream.readObject(ObjectInputStream.java:370)
	at org.apache.spark.serializer.JavaDeserializationStream.readObject(JavaSerializer.scala:62)
	at org.apache.spark.serializer.DeserializationStream$$anon$1.getNext(Serializer.scala:133)
	at org.apache.spark.util.NextIterator.hasNext(NextIterator.scala:71)
	at org.apache.spark.storage.MemoryStore.unrollSafely(MemoryStore.scala:235)
	at org.apache.spark.storage.MemoryStore.putIterator(MemoryStore.scala:126)
	at org.apache.spark.storage.MemoryStore.putIterator(MemoryStore.scala:104)
	at org.apache.spark.storage.MemoryStore.putBytes(MemoryStore.scala:76)
	at org.apache.spark.storage.BlockManager.doPut(BlockManager.scala:748)
	at org.apache.spark.storage.BlockManager.putBytes(BlockManager.scala:639)
	at org.apache.spark.storage.BlockManagerWorker.putBlock(BlockManagerWorker.scala:92)
	at org.apache.spark.storage.BlockManagerWorker.processBlockMessage(BlockManagerWorker.scala:73)
	at org.apache.spark.storage.BlockManagerWorker$$anonfun$2.apply(BlockManagerWorker.scala:48)
	at org.apache.spark.storage.BlockManagerWorker$$anonfun$2.apply(BlockManagerWorker.scala:48)
	at scala.collection.TraversableLike$$anonfun$map$1.apply(TraversableLike.scala:244)
	at scala.collection.TraversableLike$$anonfun$map$1.apply(TraversableLike.scala:244)
	at scala.collection.Iterator$class.foreach(Iterator.scala:727)
	at scala.collection.AbstractIterator.foreach(Iterator.scala:1157)
	at scala.collection.IterableLike$class.foreach(IterableLike.scala:72)
	at org.apache.spark.storage.BlockMessageArray.foreach(BlockMessageArray.scala:28)
	at scala.collection.TraversableLike$class.map(TraversableLike.scala:244)
	at org.apache.spark.storage.BlockMessageArray.map(BlockMessageArray.scala:28)
	at org.apache.spark.storage.BlockManagerWorker.onBlockMessageReceive(BlockManagerWorker.scala:48)
	at org.apache.spark.storage.BlockManagerWorker$$anonfun$1.apply(BlockManagerWorker.scala:38)
	at org.apache.spark.storage.BlockManagerWorker$$anonfun$1.apply(BlockManagerWorker.scala:38)
	at org.apache.spark.network.ConnectionManager.org$apache$spark$network$ConnectionManager$$handleMessage(ConnectionManager.scala:682)
	at org.apache.spark.network.ConnectionManager$$anon$10.run(ConnectionManager.scala:520)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
	at java.lang.Thread.run(Thread.java:744)

Issue Links

• is duplicated by: SPARK-4830 Spark Streaming Java Application : java.lang.ClassNotFoundException
• links to: [Github] Pull Request #3840 (pkolaczk)
• links to: [Github] Pull Request #4113 (jacek-lewandowski)
• links to: [Github] Pull Request #4114 (jacek-lewandowski)