MongoDB集群搭建

##集群环境:三台服务器

server1:10.62.0.128主;server2:10.62.0.135从;server3:10.62.0.159从

每一台分为6个片：shard1~shard6端口为47017,47018,47019,47020,47021,47022；每一片建三个副本集；配置服务器端口号：37017；路由服务器端口号：30000；

(1).解压安装文件

[gsunis@gsunis Desktop]$ tar zxvf mongodb-linux-x86_64-3.0.6.tgz

(2).将mongoDB文件移动到/home/gsunis/mongodb目录下

[root@gsunis Desktop]# mv mongodb-linux-x86_64-3.0.6 /home/gsunis/mongodb

(3).数据存储目录

[root@gsunis bin]# mkdir -p /home/gsunis/data/db

(4).启动mongod服务

[root@gsunis Desktop]# cd /home/gsunis/mongodb/bin
[root@gsunis bin]# ./mongod --port 27017 --dbpath=/home/gsunis/data/db

(5).启动mongo客户端

打开新的Terminal
[gsunis@gsunis Desktop]$ su 
查看mongod服务启动情况
[root@gsunis Desktop]# netstat -ntpl | grep 27017

[root@gsunis Desktop]# cd /home/gsunis/mongodb/bin/
[root@gsunis bin]# ./mongo

###正常关闭mongoDB服务

./mongo
use admin
db.shutdownServer() 或者ps -ef|grep mongodb  kill -2 pid

##以上是简单的安装mongodb，下面是开始建立集群，分片和建立副本集

###创建目录
mkdir -p /data/conf
mkdir -p /data/data1
mkdir -p /data/data2
mkdir -p /data/data3
mkdir -p /data/data4
mkdir -p /data/data5
mkdir -p /data/data6

(6).编辑mongo配置文件

sudo vi conf.cnf

//conf.cnf   
port=37017  
dbpath=/home/gsunis/data/conf  
logappend = true  
fork=true  
logpath=/home/gsunis/data/conf/mongodb.log  
nojournal=false  
configsvr=true  
profile=1 

sudo vi db1.cnf

//db1.cnf  
replSet=shard1  
port=47017  
dbpath=/home/gsunis/data/data1  
logappend = true  
fork=true  
logpath=/home/gsunis/data/data1/mongodb.log  
nojournal=false  
shardsvr=true  
profile=1  

sudo vi db2.cnf

//db2.cnf  
replSet=shard2   
port=47018  
dbpath=/home/gsunis/data/data2  
logappend = true  
fork=true  
logpath=/home/gsunis/data/data2/mongodb.log  
nojournal=false  
shardsvr=true  
profile=1  

sudo vi db3.cnf

//db3.cnf  
replSet=shard3  
port=47019  
dbpath=/home/gsunis/data/data3  
logappend = true  
fork=true  
logpath=/home/gsunis/data/data3/mongodb.log  
nojournal=false  
shardsvr=true  
profile=1  

sudo vi db4.cnf

//db4.cnf  
replSet=shard4   
port=47020  
dbpath=/home/gsunis/data/data4  
logappend = true  
fork=true  
logpath=/home/gsunis/data/data4/mongodb.log  
nojournal=false  
shardsvr=true  
profile=1  

sudo vi db5.cnf

//db5.cnf  
replSet=shard5   
port=47021  
dbpath=/home/gsunis/data/data5  
logappend = true  
fork=true  
logpath=/home/gsunis/data/data5/mongodb.log  
nojournal=false  
shardsvr=true  
profile=1  

sudo vi db6.cnf

//db6.cnf  
replSet=shard6   
port=47022  
dbpath=/home/gsunis/data/data6  
logappend = true  
fork=true  
logpath=/home/gsunis/data/data6/mongodb.log  
nojournal=false  
shardsvr=true  
profile=1

(7).编写启动mongo服务的脚本

sudo vi mg.sh

#!/bin/bash  
instance=$1  
action=$2  
case "$action" in  
   'start')  
/home/gsunis/mongodb/bin/mongod -f /home/gsunis/data/"$instance".cnf ;;  
   'stop')  
/home/gsunis/mongodb/bin/mongod -f /home/gsunis/data/"$instance".cnf --shutdown;;  
   'restart')  
/home/gsunis/mongodb/bin/mongod -f /home/gsunis/data/"$instance".cnf --shutdown  
/home/gsunis/mongodb/bin/mongod -f /home/gsunis/data/"$instance".cnf;;  
esac

(8).启动mongo服务脚本

sudo vi start.sh

#!/bin/bash 
rm /data/conf/*.lock
rm /data/data1/*.lock	
rm /data/data2/*.lock
rm /data/data3/*.lock
rm /data/data4/*.lock
rm /data/data5/*.lock
rm /data/data6/*.lock
/home/gsunis/data/mg.sh db1 start  
/home/gsunis/data/mg.sh db2 start  
/home/gsunis/data/mg.sh db3 start  
/home/gsunis/data/mg.sh db4 start  
/home/gsunis/data/mg.sh db5 start
/home/gsunis/data/mg.sh db6 start

sudo vi stop.sh

#!/bin/bash 
/home/gsunis/data/mg.sh conf stop 
/home/gsunis/data/mg.sh db1 stop  
/home/gsunis/data/mg.sh db2 stop  
/home/gsunis/data/mg.sh db3 stop  
/home/gsunis/data/mg.sh db4 stop  
/home/gsunis/data/mg.sh db5 stop
/home/gsunis/data/mg.sh db6 stop

###准备工作做好，先启动配置服务器（先启动主，依次启动两从机）
/home/gsunis/data/mg.sh conf start
###再启动路由服务器（先启动主，依次启动两从机）
/home/gsunis/mongodb/bin/mongos --configdb 10.62.0.128:37017,10.62.0.135:37017,10.62.0.159:37017 --port 30000 --chunkSize 1 --logpath /home/gsunis/data/mongos1.log --logappend --fork
###最后启动mongod（先启动主，依次启动两从机）
/home/gsunis/mongodb/data/start.sh

(9).shard服务器副本集的建立（只需要在主机上做即可，两从机会自动复制）

./mongo --port 47017

config = {_id: 'shard1', members: [
 {_id: 0, host: '10.62.0.128:47017'},
 {_id: 1, host: '10.62.0.135:47017'},
 {_id: 2, host: '10.62.0.159:47017'}]
 }
rs.initiate(config)

Ctrl + C 退出

rs.add({"_id":2,“host”:“10.62.0.135:47017”}) #在线增加复制集

./mongo --port 47018

config = {_id: 'shard2', members: [
 {_id: 0, host: '10.62.0.128:47018'},
 {_id: 1, host: '10.62.0.135:47018'},
 {_id: 2, host: '10.62.0.159:47018'}]
 }
rs.initiate(config)


./mongo --port 47019

config = {_id: 'shard3', members: [
 {_id: 0, host: '10.62.0.128:47019'},
 {_id: 1, host: '10.62.0.135:47019'},
 {_id: 2, host: '10.62.0.159:47019'}]
 }
rs.initiate(config)


./mongo --port 47020

config = {_id: 'shard4', members: [
 {_id: 0, host: '10.62.0.128:47020'},
 {_id: 1, host: '10.62.0.135:47020'},
 {_id: 2, host: '10.62.0.159:47020'}]
 }
rs.initiate(config)

./mongo --port 47021

config = {_id: 'shard5', members: [
 {_id: 0, host: '10.62.0.128:47021'},
 {_id: 1, host: '10.62.0.135:47021'},
 {_id: 2, host: '10.62.0.159:47021'}]
 }
rs.initiate(config)


./mongo --port 47022

config = {_id: 'shard6', members: [
 {_id: 0, host: '10.62.0.128:47022'},
 {_id: 1, host: '10.62.0.135:47022'},
 {_id: 2, host: '10.62.0.159:47022'}]
 }
rs.initiate(config)

配置sharding:登录到mongos，添加shard节点

./mongo --port 30000

use admin

db.runCommand({addshard:"shard1/10.62.0.128:47017,10.62.0.159:47017,10.62.0.135:47017"});
db.runCommand({addshard:"shard2/10.62.0.128:47018,10.62.0.159:47018,10.62.0.135:47018"});
db.runCommand({addshard:"shard3/10.62.0.128:47019,10.62.0.159:47019,10.62.0.135:47019"});
db.runCommand({addshard:"shard4/10.62.0.128:47020,10.62.0.159:47020,10.62.0.135:47020"});
db.runCommand({addshard:"shard5/10.62.0.128:47021,10.62.0.159:47021,10.62.0.135:47021"});
db.runCommand({addshard:"shard6/10.62.0.128:47022,10.62.0.159:47022,10.62.0.135:47022"});


use config

db.shards.find()

启动路由服务出错

错误：

时钟不同步，导致无法启动路由服务

解决方法：

(1).关闭所有mongo相关服务
(2).先启配置服务 Config Server
(3).启动路由服务 mongos
(4).最后启动所有mongod服务 mongod
###远程copy
scp /home/gsunis/Tools/mongodb-linux-x86_64-3.0.6.tgz gsunis@10.62.0.135:/home/gsunis/