关于hive元数据的错误

Exception in thread “main” java.lang.RuntimeException: org.apache.hadoop.ipc.RemoteException(org.apache.hadoop.hdfs.server.namenode.SafeModeException): Cannot create directory /tmp/hive/root/92f8b98e-beeb-4136-a66b-f2df5d922784. Name node is in safe mode. The reported blocks 2381 needs additional 2