我在ubuntu13.10上使用hadoop1.2.1。我正在运行输入文件大小为25GB的排序问题。但是我收到错误:14/09/2912:42:47INFOmapred.JobClient:map51%reduce17%14/09/2912:44:08INFOmapred.JobClient:TaskId:attempt_201409291048_0003_m_000208_0,Status:FAILEDjava.lang.Throwable:ChildErroratorg.apache.hadoop.mapred.TaskRunner.run(TaskRunner.java:271)