mongodb一主一从一Arbiter复制集部署

安装mongodb

可参考：https://soulchild.cn/1279.html

环境：

10.0.0.40     mongodb-01

10.0.0.41     mongodb-02

10.0.0.42    mongodb-arb

修改配置文件：

# 系统日志相关
systemLog:
  destination: file
  logAppend: true
  path: /application/mongodb/log/mongod.log

# 数据存储相关
storage:
  dbPath: /application/mongodb/data
  journal:
    enabled: true

# 网络相关
net:
  port: 27017
  bindIp: 0.0.0.0

# 进程控制相关
processManagement:
   fork: true
#   pidFilePath: /var/run/mongod.pid

# 安全配置
#security:
#  authorization: enable
#  keyFile: /application/mongodb/data/keyfile
#复制集配置
replication: 
    oplogSizeMB: 2048 
    replSetName: app_1

配置复制集

#登陆主mongo
mongo

conf = {
                _id: 'app_1', 
                members: [
                    {_id: 0, host: '10.0.0.40:27017',priority:10},
                    {_id: 1, host: '10.0.0.41:27017',priority:9},
                    {_id: 2, host: '10.0.0.42:27017',"arbiterOnly": true}
                 ]
}

#初始化pepei配置
rs.initiate(conf)

# 查看状态
rs.status()

添加超级管理员

# 连接数据库
mongo

# 切换到admin库
use admin

# 创建用户
db.createUser(
     {
     user: "root",
     pwd: "123",
     roles: [{ role:"root",db:"admin"}]
     }
)

生成认证keyfile

openssl rand -base64 512 > /application/mongodb/data/keyfile

配置文件添加安全配置

security:
  authorization: enable
  keyFile: /application/mongodb/data/keyfile

重启所有节点