CDH5安装出现的初始化namenode错误,问题Running in non-interactive mode, and data appears to exist in Storage Direc

CDH5安装出现的初始化namenode错误,问题Running in non-interactive mode, and data appears to exist in Storage Direc

问题原因:是由于之前初始化 namenode 在/DB/dfs/nn 留下了残留数据(失效数据),从而影响再次初始化

解决方法:清空 /DB/dfs/nn 目录下的东西,重新初始化即可

备注:datanode 同理