hadoop mapreduce 在编写好的程序下 运行程序出现错误，求错误所在

Question

15/09/01 10:05:06 INFO mapred.JobClient: map 0% reduce 0%
15/09/01 10:05:22 INFO mapred.JobClient: Task Id : attempt_201509011003_0001_m_000002_0, Status : FAILED
java.util.NoSuchElementException
at java.util.StringTokenizer.nextToken(StringTokenizer.java:332)
at com.hebut.mr.Score$Map.map(Score.java:37)
at com.hebut.mr.Score$Map.map(Score.java:1)
at org.apache.hadoop.mapreduce.Mapper.run(Mapper.java:144)
at org.apache.hadoop.mapred.MapTask.runNewMapper(MapTask.java:764)
at org.apache.hadoop.mapred.MapTask.run(MapTask.java:370)
at org.apache.hadoop.mapred.Child$4.run(Child.java:255)
at java.security.AccessController.doPrivileged(Native Method)
at javax.security.auth.Subject.doAs(Subject.java:396)
at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1149)
at org.apache.hadoop.mapred.Child.main(Child.java:249)

15/09/01 10:05:25 WARN mapred.JobClient: Error reading task outputSlave1.hadoop
15/09/01 10:05:25 WARN mapred.JobClient: Error reading task outputSlave1.hadoop
15/09/01 10:05:26 INFO mapred.JobClient: Task Id : attempt_201509011003_0001_m_000000_0, Status : FAILED
java.util.NoSuchElementException
at java.util.StringTokenizer.nextToken(StringTokenizer.java:332)
at com.hebut.mr.Score$Map.map(Score.java:37)
at com.hebut.mr.Score$Map.map(Score.java:1)
at org.apache.hadoop.mapreduce.Mapper.run(Mapper.java:144)
at org.apache.hadoop.mapred.MapTask.runNewMapper(MapTask.java:764)
at org.apache.hadoop.mapred.MapTask.run(MapTask.java:370)
at org.apache.hadoop.mapred.Child$4.run(Child.java:255)
at java.security.AccessController.doPrivileged(Native Method)
at javax.security.auth.Subject.doAs(Subject.java:396)
at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1149)
at org.apache.hadoop.mapred.Child.main(Child.java:249)

Answer 1

这是因为 你上传到HDFS上的文件的格式不对，应该是 UTF-8。