MongoDB基本操作

use sanhe

db.auth('sanhe','35DJqemUv72');

use admin

show dbs;

db.auth("root","1qaz@WSX")

use admin

db.createUser({user: "root",pwd: "1qaz@WSX",roles: [ { role: "userAdminAnyDatabase", db: "admin" } ]})

./mongo --auth

db.auth("myUserAdmin", "abc123")
> db.grantRolesToUser("myUserAdmin", [ { role: "read", db: "admin" } ])

// mongodb 副本集重新配置
> db.version();
3.2.6

> conf=rs.conf()
> conf.members[0].host="192.168.56.200:27017";
> rs.reconfig(rsconf,{"force":true});

// mongodb 副本集重新配置(可以在已经启用认证运行的MongoDB环境中执行)
config = {
    _id : "shard1",
        members : [
            {_id : 0, host : "172.31.62.225:27017", priority:2 },
            {_id : 1, host : "172.31.62.224:27017", priority:1 },
            {_id : 2, host : "172.31.62.226:27017", arbiterOnly:true }
        ]
    }
rs.reconfig(config,{"force":true});