解决Failed to start namenode: Cannot assign requested address
尝试在云服务器上多节点安装 hadoop，在我node1的 start-dfs.sh 命令上，datanode正在启动，但namenode无法启动并出现以下错误2022-05-09 16:37:45,820 ERROR org.apache.hadoop.hdfs.server.namenode.NameNode: Failed to start namenode.java.net.BindException: Problem binding to [node1:8020] java.net.B
