我在hadoop2.6.0上使用YARN。当我运行mapreduce作业时，出现如下错误:15/03/1222:22:59INFOmapreduce.Job:TaskId:attempt_1426132548565_0003_m_000002_1,Status:FAILEDError:Javaheapspace15/03/1222:22:59INFOmapreduce.Job:TaskId:attempt_1426132548565_0003_m_000000_1,Status:FAILEDError:Javaheapspace15/03/1222:23:20INFOmapreduce