Hi sea Is it the same issue as https://issues.apache.org/jira/browse/SPARK-8368
Sea <261810...@qq.com>于2015年8月13日周四 下午6:52写道: > Are you using 1.4.0? If yes, use 1.4.1 > > > ------------------ 原始邮件 ------------------ > *发件人:* "周千昊";<qhz...@apache.org>; > *发送时间:* 2015年8月13日(星期四) 晚上6:04 > *收件人:* "dev"<dev@spark.apache.org>; > *主题:* 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 Regard ZhouQianhao