报错 The number of live datanodes 1 has reached the minimum number 0
报错2023-08-2409:24:59,227ERRORorg.apache.hadoop.hdfs.server.namenode.SecondaryNameNode:ExceptionindoCheckpointorg.apache.hadoop.ipc.RemoteException(org.apache.hadoop.hdfs.server.namenode.SafeModeExcept