错误
org.apache.hadoop.ipc.RemoteException(org.apache.hadoop.hdfs.server.namenode.SafeModeException): Cannot delete /tmp/hadoop-yarn/staging/hc/.staging/job_1581354172751_0001. Name node is in safe mode.
解决方案因为没有关闭安全模式，把安全模式关闭(退出安全模式)
hdfs dfsadmin -safemode leave
