mongodb之replSet复制集
### mongodb的复制集### 注意点
- 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
- 开启selinux的也要进行设置
- 建立双击互信模式最好不过
### 主服务器配置文件
- 添加一行 replSet = zhuima 定义一个副本集
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# sed -e '/^#/d;/^$/d' /etc/mongodb.conf
bind_ip = 192.168.58.10
port = 27017
fork = true
pidfilepath = /var/run/mongodb/mongodb.pid
logpath = /var/log/mongodb/mongodb.log
dbpath =/mongo/data
journal = true
replSet = zhuima
nohttpinterface = true
#
### 从服务器配置文件
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# sed -e '/^#/d;/^$/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
replSet = zhuima
nohttpinterface = true
#
### 重启服务器进行副本集初始化操作
- 主服务器
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> rs.initiate()
{
"info2" : "no configuration explicitly specified -- making one",
"me" : "192.168.58.30:27017",
"info" : "Config now saved locally.Should come online in about a minute.",
"ok" : 1
}
> rs.config
function () { return rs.conf(); }
> rs.config()
{
"_id" : "zhuima",
"version" : 1,
"members" : [
{
"_id" : 0,
"host" : "192.168.58.30:27017"
}
]
}
>
- 从服务器
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> rs.initiate()
{
"info2" : "no configuration explicitly specified -- making one",
"me" : "192.168.58.10:27017",
"info" : "Config now saved locally.Should come online in about a minute.",
"ok" : 1
}
> rs.config()
{
"_id" : "zhuima",
"version" : 1,
"members" : [
{
"_id" : 0,
"host" : "192.168.58.10:27017"
}
]
}
>
### 在主服务器上进行副本集节点添加
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zhuima:PRIMARY> rs.add("192.168.58.30:27017")
{ "ok" : 1 }
zhuima:PRIMARY> rs.config()
{
"_id" : "zhuima",
"version" : 2,
"members" : [
{
"_id" : 0,
"host" : "192.168.58.10:27017"
},
{
"_id" : 1,
"host" : "192.168.58.30:27017"
}
]
}
zhuima:PRIMARY>
- 从节点上
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rs.slaveOk() 让自己成为从节点
### 过几分钟，观察数据同步情况
### 后记
[*]mongodb的replSet复制集是mongodb官方推荐的一种集群方式
[*]放弃master/slave,跟replSet走吧！
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