mongodb之master/slave模式

786yr

### mongodb的主从配置（不带auth认证）


### 注意事项：
    - 服务器节点之前时间要同步

    - 开启防火墙的一定要允许通过相关端口

    - 开启selinux的也要进行设置

    - 建立双击互信模式最好不过



### master配置文件

• - 添加了master = true 这一行即可   
  
• - 多网卡机器bind_ip这一行尽可能写成一个具体地址（最好写内网地址），因为slave上是根据这个同步的
  
  

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[iyunv@blog ~]# sed -e '/^#/d;/^$/d' /etc/mongodb.conf bind_ip = 192.168.58.10 port = 27017 fork = true pidfilepath = /var/run/mongodb/mongodb.pid logpath = /var/log/mongodb/mongodb.log dbpath =/mongo/data journal = true master = true nohttpinterface = true [iyunv@blog ~]#

### slave配置文件

• 添加了以下两行
  
  

    - slave = true
    - source = 192.168.58.10:27017

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[iyunv@redis ~]# sed -e '/^#/d;/^$/d' /etc/mongodb.conf bind_ip = 192.168.58.30 port = 27017 fork = true pidfilepath = /var/run/mongodb/mongodb.pid logpath = /var/log/mongodb/mongodb.log dbpath =/var/lib/mongodb journal = true nohttpinterface = true slave = true source = 192.168.58.10:27017 [iyunv@redis ~]#

### 重启两节点的mongodb服务进行初始化操作并验证数据同步情况

• master
  
  

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[iyunv@blog ~]# [iyunv@blog ~]# hostname blog.unix178.com [iyunv@blog ~]# mongo MongoDB shell version: 2.4.6 connecting to: test > show dbs admin0.203125GB local10.0732421875GB test0.203125GB zhuima0.203125GB >

• slave
  
  

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[iyunv@redis ~]# hostname redis.unix178.com [iyunv@redis ~]# mongo MongoDB shell version: 2.4.6 connecting to: test > show dbs admin0.203125GB local0.078125GB zhuima0.203125GB >

### 查看同步情况

• master服务器上
  
  

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[iyunv@blog ~]# mongo 192.168.58.30 MongoDB shell version: 2.4.6 connecting to: 192.168.58.30/test > show dbs admin0.203125GB local0.078125GB nick0.203125GB test0.203125GB zhuima0.203125GB >

• slave服务器上
  
  

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[iyunv@redis ~]# mongo 192.168.58.10 MongoDB shell version: 2.4.6 connecting to: 192.168.58.10/test > show dbs; admin0.203125GB local10.0732421875GB nick0.203125GB test0.203125GB zhuima0.203125GB >

### 添加新的数据进行验证

• master上添加数据
  
  

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[iyunv@redis ~]# mongo 192.168.58.10 MongoDB shell version: 2.4.6 connecting to: 192.168.58.10/test > show dbs; admin0.203125GB local10.0732421875GB nick0.203125GB test0.203125GB zhuima0.203125GB > use nick switched to db nick > use newdb switched to db newdb > db.newdb.insert({new:"yes",info:"nothing"}) > show collections newdb system.indexes > db.newdb.find() { "_id" : ObjectId("53cbd4b35974b01658718b2d"), "new" : "yes", "info" : "nothing" } >

• slave上验证
  
  

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[iyunv@blog ~]# mongo 192.168.58.30 MongoDB shell version: 2.4.6 connecting to: 192.168.58.30/test > show dbs admin0.203125GB local0.078125GB nick0.203125GB test0.203125GB zhuima0.203125GB > show dbs admin0.203125GB local0.078125GB newdb0.203125GB nick0.203125GB test0.203125GB zhuima0.203125GB > use newdb switched to db newdb > show collections newdb system.indexes > db.newdb.find() { "_id" : ObjectId("53cbd4b35974b01658718b2d"), "new" : "yes", "info" : "nothing" } >

### 后记

• mongodb官方已经不再推荐使用master/salve模式的结构
  
• 官方推荐使用replica_set复制集模式
  
• 仅供参考