启动hbase shell报错：org.apache.hadoop.hbase.ipc.ServerNotRunningYetException: Server is not

​​启动hbase shell报错：org.apache.hadoop.hbase.ipc.ServerNotRunningYetException: Server is not running yet​​

查看日志发现：Waiting for dfs to exit safe mode

这说明HDFS目前处于安全模式，需要退出才行，于是进入Namdenode节点，执行命令：

hdfs dfsadmin -safemode leave即可