I have no idea... We use scala. You upgrade to 1.4 so quickly..., are you using spark in production? Spark 1.3 is better than spark1.4.
------------------ ???????? ------------------ ??????: "??????";<z.qian...@gmail.com>; ????????: 2015??8??14??(??????) ????11:14 ??????: "Sea"<261810...@qq.com>; "dev@spark.apache.org"<dev@spark.apache.org>; ????: Re: please help with ClassNotFoundException Hi Sea I have updated spark to 1.4.1, however the problem still exists, any idea? Sea <261810...@qq.com>??2015??8??14?????? ????12:36?????? Yes, I guess so. I see this bug before. ------------------ ???????? ------------------ ??????: "??????";<z.qian...@gmail.com>; ????????: 2015??8??13??(??????) ????9:30 ??????: "Sea"<261810...@qq.com>; "dev@spark.apache.org"<dev@spark.apache.org>; ????: Re: please help with ClassNotFoundException Hi sea Is it the same issue as https://issues.apache.org/jira/browse/SPARK-8368 Sea <261810...@qq.com>??2015??8??13?????? ????6:52?????? Are you using 1.4.0? If yes, use 1.4.1 ------------------ ???????? ------------------ ??????: "??????";<qhz...@apache.org>; ????????: 2015??8??13??(??????) ????6:04 ??????: "dev"<dev@spark.apache.org>; ????: please help with ClassNotFoundException Hi, I am using spark 1.4 when an issue occurs to me. I am trying to use the aggregate function: JavaRdd<String> rdd = some rdd; HashMap<Long, TypeA> zeroValue = new HashMap(); // add initial key-value pair for zeroValue rdd.aggregate(zeroValue, new Function2<HashMap<Long, TypeA>, String, HashMap<Long, TypeA>>(){//implementation}, new Function2<HashMap<Long, TypeA>, String, HashMap<Long, TypeA>(){//implementation}) here is the stack trace when i run the application: Caused by: java.lang.ClassNotFoundException: TypeA 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:274) at org.apache.spark.serializer.JavaDeserializationStream$$anon$1.resolveClass(JavaSerializer.scala:66) at java.io.ObjectInputStream.readNonProxyDesc(ObjectInputStream.java:1612) at java.io.ObjectInputStream.readClassDesc(ObjectInputStream.java:1517) at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1771) at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1350) at java.io.ObjectInputStream.readObject(ObjectInputStream.java:370) at java.util.HashMap.readObject(HashMap.java:1180) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:606) at java.io.ObjectStreamClass.invokeReadObject(ObjectStreamClass.java:1017) at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1893) at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1798) at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1350) at java.io.ObjectInputStream.readObject(ObjectInputStream.java:370) at org.apache.spark.serializer.JavaDeserializationStream.readObject(JavaSerializer.scala:69) at org.apache.spark.serializer.JavaSerializerInstance.deserialize(JavaSerializer.scala:89) at org.apache.spark.util.Utils$.clone(Utils.scala:1458) at org.apache.spark.rdd.RDD$$anonfun$aggregate$1.apply(RDD.scala:1049) at org.apache.spark.rdd.RDDOperationScope$.withScope(RDDOperationScope.scala:148) at org.apache.spark.rdd.RDDOperationScope$.withScope(RDDOperationScope.scala:109) at org.apache.spark.rdd.RDD.withScope(RDD.scala:286) at org.apache.spark.rdd.RDD.aggregate(RDD.scala:1047) at org.apache.spark.api.java.JavaRDDLike$class.aggregate(JavaRDDLike.scala:413) at org.apache.spark.api.java.AbstractJavaRDDLike.aggregate(JavaRDDLike.scala:47) however I have checked that TypeA is in the jar file which is in the classpath And when I use an empty HashMap as the zeroValue, the exception has gone Does anyone meet the same problem, or can anyone help me with it? -- Best RegardZhouQianhao -- Best RegardZhouQianhao
