假如我们只有3台linux虚拟机,主机名分别为hadoop01.hadoop02和hadoop03,在这3台机器上,hadoop集群的部署情况如下: hadoop01:1个namenode,1个datanode,1个journalnode,1个zkfc,1个resourcemanager,1个nodemanager: hadoop02:1个namenode,1个datanode,1个journalnode,1个zkfc,1个resourcemanager,1个nodemanager: hadoo