after removing all class paramater of class Path from my code, i tried
again. different but related eror when i set
spark.files.userClassPathFirst=true
now i dont even use FileInputFormat directly. HadoopRDD does...
14/05/16 12:17:17 ERROR Executor: Exception in task ID 45
java.lang.NoClassDefFoundError: org/apache/hadoop/mapred/FileInputFormat
at java.lang.ClassLoader.defineClass1(Native Method)
at java.lang.ClassLoader.defineClass(ClassLoader.java:792)
at
java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142)
at java.net.URLClassLoader.defineClass(URLClassLoader.java:449)
at java.net.URLClassLoader.access$100(URLClassLoader.java:71)
at java.net.URLClassLoader$1.run(URLClassLoader.java:361)
at java.net.URLClassLoader$1.run(URLClassLoader.java:355)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:354)
at
org.apache.spark.executor.ChildExecutorURLClassLoader$userClassLoader$.findClass(ExecutorURLClassLoader.scala:42)
at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
at
org.apache.spark.executor.ChildExecutorURLClassLoader.findClass(ExecutorURLClassLoader.scala:51)
at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Class.java:270)
at
org.apache.spark.serializer.JavaDeserializationStream$$anon$1.resolveClass(JavaSerializer.scala:57)
at
java.io.ObjectInputStream.readNonProxyDesc(ObjectInputStream.java:1610)
at
java.io.ObjectInputStream.readClassDesc(ObjectInputStream.java:1515)
at java.io.ObjectInputStream.readClass(ObjectInputStream.java:1481)
at
java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1331)
at
java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1989)
at
java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1913)
at
java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1796)
at
java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1348)
at
java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1989)
at
java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1913)
at
java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1796)
at
java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1348)
at java.io.ObjectInputStream.readObject(ObjectInputStream.java:370)
at
scala.collection.immutable.$colon$colon.readObject(List.scala:362)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:606)
at
java.io.ObjectStreamClass.invokeReadObject(ObjectStreamClass.java:1017)
at
java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1891)
at
java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1796)
at
java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1348)
On Thu, May 15, 2014 at 3:03 PM, Koert Kuipers <ko...@tresata.com> wrote:
> when i set spark.files.userClassPathFirst=true, i get java serialization
> errors in my tasks, see below. when i set userClassPathFirst back to its
> default of false, the serialization errors are gone. my spark.serializer is
> KryoSerializer.
>
> the class org.apache.hadoop.fs.Path is in the spark assembly jar, but not
> in my task jars (the ones i added to the SparkConf). so looks like the
> ClosureSerializer is having trouble with this class once the
> ChildExecutorURLClassLoader is used? thats me just guessing.
>
> Exception in thread "main" org.apache.spark.SparkException: Job aborted
> due to stage failure: Task 1.0:5 failed 4 times, most recent failure:
> Exception failure in TID 31 on host node05.tresata.com:
> java.lang.NoClassDefFoundError: org/apache/hadoop/fs/Path
> java.lang.Class.getDeclaredConstructors0(Native Method)
> java.lang.Class.privateGetDeclaredConstructors(Class.java:2398)
> java.lang.Class.getDeclaredConstructors(Class.java:1838)
>
> java.io.ObjectStreamClass.computeDefaultSUID(ObjectStreamClass.java:1697)
> java.io.ObjectStreamClass.access$100(ObjectStreamClass.java:50)
> java.io.ObjectStreamClass$1.run(ObjectStreamClass.java:203)
> java.security.AccessController.doPrivileged(Native Method)
>
> java.io.ObjectStreamClass.getSerialVersionUID(ObjectStreamClass.java:200)
> java.io.ObjectStreamClass.initNonProxy(ObjectStreamClass.java:556)
>
> java.io.ObjectInputStream.readNonProxyDesc(ObjectInputStream.java:1580)
>
> java.io.ObjectInputStream.readClassDesc(ObjectInputStream.java:1493)
>
> java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1729)
> java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1326)
>
> java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1950)
>
> java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1874)
>
> java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1756)
> java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1326)
> java.io.ObjectInputStream.readObject(ObjectInputStream.java:348)
> scala.collection.immutable.$colon$colon.readObject(List.scala:362)
> sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
>
> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
>
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
> java.lang.reflect.Method.invoke(Method.java:597)
>
> java.io.ObjectStreamClass.invokeReadObject(ObjectStreamClass.java:969)
>
> java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1852)
>
> java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1756)
> java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1326)
>
> java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1950)
>
> java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1874)
>
> java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1756)
> java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1326)
> java.io.ObjectInputStream.readObject(ObjectInputStream.java:348)
>
> org.apache.spark.serializer.JavaDeserializationStream.readObject(JavaSerializer.scala:60)
>
> org.apache.spark.scheduler.ShuffleMapTask$.deserializeInfo(ShuffleMapTask.scala:66)
>
> org.apache.spark.scheduler.ShuffleMapTask.readExternal(ShuffleMapTask.scala:139)
>
> java.io.ObjectInputStream.readExternalData(ObjectInputStream.java:1795)
>
> java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1754)
> java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1326)
> java.io.ObjectInputStream.readObject(ObjectInputStream.java:348)
>
> org.apache.spark.serializer.JavaDeserializationStream.readObject(JavaSerializer.scala:60)
>
> org.apache.spark.serializer.JavaSerializerInstance.deserialize(JavaSerializer.scala:82)
>
> org.apache.spark.executor.Executor$TaskRunner.run(Executor.scala:190)
>
> java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:895)
>
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:918)
> java.lang.Thread.run(Thread.java:662)
>
>
