mapreduce运行问题 ：java.io.EOFException

写MapReduce  Dome 案例时i，报出 java.io.EOFException 

java.lang.Exception: java.io.EOFException
	at org.apache.hadoop.mapred.LocalJobRunner$Job.runTasks(LocalJobRunner.java:462)
	at org.apache.hadoop.mapred.LocalJobRunner$Job.run(LocalJobRunner.java:529)
Caused by: java.io.EOFException
	at java.io.DataInputStream.readFully(DataInputStream.java:197)
	at java.io.DataInputStream.readUTF(DataInputStream.java:609)
	at java.io.DataInputStream.readUTF(DataInputStream.java:564)
	at com.com.reducejoin1.TableBean.readFields(TableBean.java:99)
	at org.apache.hadoop.io.serializer.WritableSerialization$WritableDeserializer.deserialize(WritableSerialization.java:71)
	at org.apache.hadoop.io.serializer.WritableSerialization$WritableDeserializer.deserialize(WritableSerialization.java:42)
	at org.apache.hadoop.mapreduce.task.ReduceContextImpl.nextKeyValue(ReduceContextImpl.java:146)
	at org.apache.hadoop.mapreduce.task.ReduceContextImpl.nextKey(ReduceContextImpl.java:121)
	at org.apache.hadoop.mapreduce.lib.reduce.WrappedReducer$Context.nextKey(WrappedReducer.java:302)
	at org.apache.hadoop.mapreduce.Reducer.run(Reducer.java:170)
	at org.apache.hadoop.mapred.ReduceTask.runNewReducer(ReduceTask.java:627)
	at org.apache.hadoop.mapred.ReduceTask.run(ReduceTask.java:389)
	at org.apache.hadoop.mapred.LocalJobRunner$Job$ReduceTaskRunnable.run(LocalJobRunner.java:319)
	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
	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:748)

此问题为序列化错误

来看序列化当前类

 

 

 修改之后重新运行程序，问题解决