MongoDB集群搭建及Sharding的实现思路
MongoDB集群搭建及Sharding的实现思路
MongoDB集群搭建
MongoDB的复制集群类型：
·主从模式(master/slave)
·副本集模式（replica set）
副本及模式至少3个节点（一主二从），从节点负责复制主节点的oplog到本地并且应用到本地从而实现冗余。
（·arbiter：仅参与选举，但不持有任何数据
·0优先级：可以触发选举，但是不能被选举成为主节点
·可以使用repiset来定义集群名称）
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MongoDB 的详细介绍：请点这里
MongoDB 的下载地址：请点这里
MongoDB备份与恢复
CentOS编译安装MongoDB
CentOS 编译安装 MongoDB与mongoDB的php扩展
CentOS 6 使用 yum 安装MongoDB及服务器端配置
Ubuntu 13.04下安装MongoDB2.4.3
如何在MongoDB中建立新数据库和集合
MongoDB入门必读(概念与实战并重)
《MongoDB 权威指南》(MongoDB: The Definitive Guide)英文文字版[PDF]
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1.编译安装MongDB
准备环境：
系统：Debian 7.2 64位
mongodb：mongodb-linux-x86_64-2.4.5.tgz（官网有下）
root@namenode1:/usr/local/tools# tar xfmongodb-linux-x86_64-2.4.5.tgz
root@namenode1:/usr/local/tools# mv mongodb-linux-x86_64-2.4.5 /usr/local/
root@namenode1:/usr/local/tools# cd /usr/local/
root@namenode1:/usr/local# ln -s /usr/local/mongodb-linux-x86_64-2.4.5//usr/local/mongodb
root@namenode1:/usr/local# ll | grep mongo
lrwxrwxrwx 1 root staff 38 3月 17 15:35 mongodb ->/usr/local/mongodb-linux-x86_64-2.4.5/
drwxr-sr-x 3 root staff 4096 3月 17 15:08 mongodb-linux-x86_64-2.4.5
#创建用户
root@namenode1:~# groupadd -r mongod
root@namenode1:~# useradd -M -r -g mongod -d /data/db -s /bin/false -c mongodmongod
#建立目录
root@namenode1:~# mkdir -p /var/log/mongo/
root@namenode1:~# mkdir -p /mongo/data
root@namenode1:~# chown mongod /mongo/data /var/log/mongo/
root@namenode1:~# ll /var/log/ | grep mongo
drwxr-xr-x 2mongod root 4096 Mar 17 15:25mongo
root@namenode1:~# ll /mongo/
total 4
drwxr-xr-x 2 mongod root 4096 Mar 17 15:27 data
#将LC_ALL="C"加入环境变量，以防启动出错
root@namenode1:~# echo ‘export LC_ALL="C"’ >> /etc/profile
#创建配置文件(将之前rpm包安装mongodb后的配置文件拷贝过来即可)
root@namenode1:~# cat /etc/mongod.conf
# mongo.conf
#where to log
logpath=/var/log/mongo/mongod.log
logappend=true
# fork and run in background
fork = true
#port = 27017
dbpath=/mongo/data
# location of pidfile
pidfilepath = /var/run/mongodb/mongod.pid
# Disables write-ahead journaling
# nojournal = true
# Enables periodic logging of CPU utilization and I/O wait
#cpu = true
# Turn on/off security. Off is currently the default
#noauth = true
#auth = true
# Verbose logging output.
#verbose = true
# Inspect all client data for validity on receipt (useful for
# developing drivers)
#objcheck = true
# Enable db quota management
#quota = true
# Set oplogging level where n is
# 0=off (default)
# 1=W
# 2=R
# 3=both
# 7=W+some reads
#diaglog = 0
# Ignore query hints
#nohints = true
# Disable the HTTP interface (Defaults to localhost:27018).
#nohttpinterface = true
# Turns off server-side scripting. This will result in greatly limited
# functionality
#noscripting = true
# Turns off table scans. Any query that would do a table scan fails.
#notablescan = true
# Disable data file preallocation.
#noprealloc = true
# Specify .ns file size for new databases.
# nssize = <size>
# Accout token for Mongo monitoring server.
#mms-token = <token>
# Server name for Mongo monitoring server.
#mms-name = <server-name>
# Ping interval for Mongo monitoring server.
#mms-interval = <seconds>
# Replication Options
# in replicated mongo databases, specify here whether this is a slave or master
#slave = true
#source = master.example.com
# Slave only: specify a single database to replicate
#only = master.example.com
# or
#master = true
#source = slave.example.com
启动mongodb
export LC_ALL="C"
root@namenode2:/usr/local/mongodb/bin# mongod -f /etc/mongod.conf
2.安装Rockmongo
RockMongo 是一个PHP5写的MongoDB管理工具。主要特征:使用宽松的New BSD License协议，速度快，安装简单，与mysql的phpmyadmin相似
root@namenode1:~# apt-get install apache2 php5 php5-dev php5-cli
root@namenode1:/etc/apache2# cd /var/www/
root@namenode1:/var/www# wgethttp://rock-php.googlecode.com/files/rockmongo-v1.0.11.zip
root@namenode1:/var/www# unzip rockmongo-v1.0.11.zip
#二次编译php模块
root@namenode1:/var/www/mongo-php-driver-master# phpize
root@namenode1:/var/www/mongo-php-driver-master# ./configure
root@namenode1:/var/www/mongo-php-driver-master# make && makeinstall
#找到php模块所在路径
root@namenode1:/var/www/mongo-php-driver-master# php -i | grepextension_dir
extension_dir => /usr/lib/php5/20100525 => /usr/lib/php5/20100525
root@namenode1:/var/www/mongo-php-driver-master# ll /usr/lib/php5/20100525
total 2084
-rwxr-xr-x 1 root root 2016810 Mar 17 16:35 mongo.so
-rw-r--r-- 1 root root 113072 Dec 12 16:53 pdo.so
#php在debian系统所安装的路径在以下的位置，如果是其他系统需根据相对路径进行查找
root@namenode1:/var/www/mongo-php-driver-master# ll/etc/php5/apache2/php.ini
-rw-r--r-- 1 root root 65755 Dec 12 16:53 /etc/php5/apache2/php.ini
root@namenode1:/var/www/mongo-php-driver-master# vi/etc/php5/apache2/php.ini
在733行加入内容,并保存退出
733 extension = mongo.so
重启apache并查看url是否生效
root@namenode1:/etc/init.d/apache restart
访问以下地址
http://172.23.214.50/rockmongo/index.php?action=index.login
可以看到如下图所示，已经可以正常显示mongodb的管理登陆界面，默认情况下用户名与密码默认都为admin
确认用户名和密码，登陆成功，如下所示
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