org.apache.hadoop.ipc.RemoteException(org.apache.hadoop.hdfs.server.namenode.SafeModeException): Cannot create directory /hdfsapi/t. Name node is in safe mode.

The reported blocks 0 needs additional 6 blocks to reach the threshold 0.9990 of total blocks 6.

The number of live datanodes 0 has reached the minimum number 0. Safe mode will be turned off automatically once the thresholds have been reached.

这是我运行IDEA的错误信息，namenode进入了安全模式，老师我应该怎么做，是修改阙值的那个文件吗，