当我尝试在主节点上启动hadoop时，我得到以下输出。并且namenode没有启动。[hduser@dellnode1~]$start-dfs.shstartingnamenode,loggingto/usr/local/hadoop/bin/../logs/hadoop-hduser-namenode-dellnode1.library.outdellnode1.library:datanoderunningasprocess5123.Stopitfirst.dellnode3.library:datanoderunningasprocess4072.Stopitfirst.dell