qq_31945139的博客

start-dfs.sh错误 ERROR: Attempting to operate on hdfs namenode as root ERROR: but there is no HDFS_NAMENODE_USER defined. Aborting operation. Starting datanodes ERROR: Attempting to operate on hdfs dat...

zookeeper作用：2个namenode做高可用故障转移使用 1、启动zk：1、2、3、4节点 整体执行：[root@node01 hadoop]zkServer.sh start 2、查看ZK服务状态: 整体执行：[root@node01 hadoop]zkServer.sh status 注 a. 启动ZK服务: sh bin/zkServer.sh start b. 查看Z...