mongodb主从复制

角色                ip地址                端口
主服务器         192.168.8.81     27017
从服务器         192.168.8.82     27017

fork = true
pidfilepath = /var/run/mongoDB/mongod.pid
logpath = /var/log/mongodb/mongod.log
unixSocketPrefix = /var/run/mongodb
dbpath = /var/lib/mongodb
port=27017
master=true

fork = true
pidfilepath = /var/run/mongodb/mongod.pid
logpath = /var/log/mongodb/mongod.log
unixSocketPrefix = /var/run/mongodb
dbpath = /var/lib/mongodb
port=27017
slave=true
source=192.168.8.81:27017

systemctl  start  mongod

db.user.insert({name:"lee"})
db.user.find()

b. 从服务器：

db.user.find()