--为从节点创建上当 [mongodb@rudy 2.6]$ mkdir 27018 [mongodb@rudy 2.6]$ mkdir 27019 [mongodb@rudy log]$ mkdir 27018 [mongodb@rudy log]$ mkdir 27019 --主配置文件 [mongodb@rudy 2.6]$ cat mongodb.conf dbpath=/usr/local/mongodb/2.6/data #auth=true fork=1 logpath=/usr/local/mongodb/2.6/log/mongo.log master = true port=27017 --从配置文件 [mongodb@rudy 2.6]$ cat mongodb.conf dbpath=/usr/local/mongodb/2.6/27018 #auth=true fork=1 logpath=/usr/local/mongodb/2.6/log/27018/mongo.log slave = true port=27018 source=rudy:27017 --启动主 [root@rudy ~]# mongod --config /usr/local/mongodb/2.6/mongodb.conf --启动从,mongo会自动同步从所需要的数据 [root@rudy ~]# mongod --config /usr/local/mongodb/2.6/27018/mongodb.conf --查看master 的oplog元数据信息 > db.printReplicationInfo() --查看slave 的应用信息 > db.printSlaveReplicationInfo()