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[转]Infobright是一个与MySQL集成的开源数据仓库
[文章作者：张宴 本文版本：v1.1 最后修改：2010.05.18 转载请注明原文链接：http://blog.zyan.cc/infobright/]
Infobright是一个与MySQL集成的开源数据仓库（Data Warehouse）软件，可作为MySQL的一个存储引擎来使用，SELECT查询与普通MySQL无区别。
一、Infobright的基本特征：
优点：
查询性能高：百万、千万、亿级记录数条件下，同等的SELECT查询语句，速度比MyISAM、InnoDB等普通的MySQL存储引擎快5～60倍
存储数据量大：TB级数据大小，几十亿条记录
高压缩比：在我们的项目中为18:1，极大地节省了数据存储空间
基于列存储：无需建索引，无需分区
适合复杂的分析性SQL查询：SUM, COUNT, AVG, GROUP BY
限制：
不支持数据更新：社区版Infobright只能使用“LOAD DATA INFILE”的方式导入数据，不支持INSERT、UPDATE、DELETE
不支持高并发：只能支持10多个并发查询
二、Infobright 安装与基本用法：
1、下载安装社区版Infobright二进制Linux版本，端口3307
mkdir -p /data0/mysql/3307
/usr/sbin/groupadd mysql
/usr/sbin/useradd -g mysql mysql
cd /usr/local
①、64位系统：
tar zxvf infobright-3.3.1-x86_64-ice.tar.gz
mv infobright-3.3.1-x86_64 infobright
②、32位系统：
tar zxvf infobright-3.3.1-i686-ice.tar.gz
mv infobright-3.3.1-i686 infobright
./install-infobright.sh --datadir=/data0/mysql/3307/data --cachedir=/data0/mysql/3307/cache --config=/data0/mysql/3307/my.cnf --port=3307 --socket=/tmp/mysql3307.sock --user=mysql --group=mysql
2、开始安装，提示以下信息：
Infobright installation script is running...
Checking system configuration...
Infobright license agreement...
System tool ‘Less‘ - a text file viewer will be used to display license agreement.
Please only use up/down arrow keys for scrolling license text and press Q when finished reading.
Press R -Read license agreement, N -Exit the installation [R/N]:
选择R，空格翻页到页尾，看到以下提示时，选择Q继续安装：
END OF TERMS AND CONDITIONS
============ Press Q to continue installation ==========
(END)
接下来会显示以下信息，选择Y同意：
Press Y -I agree, Any other key -I do not agree [Y/*]:
这时，会提示是否在线注册，选择N不注册：
Installation has been made for system user root and mysql.
Please see README or User guide for instructions related to start/stop the Infobright server and connect to it.
Register your copy of ICE and receive a free copy of the User Manual (a $50 value) as well as a copy of the Bloor Research Spotlight Report "What‘s Cool About Columns" which explains the differences and benefits of a columnar versus row database.
Registration will require opening an HTTP connection to Infobright, do you wish to register now? [Y/N]:
3、修改Infobright内存使用限制
根据自身的物理内存大小修改ServerMainHeapSize、ServerCompressedHeapSize、LoaderMainHeapSize的值，有参考：
# System Memory Server Main Heap Size Server Compressed Heap Size Loader Main Heap Size
# 32GB 24000 4000 800
# 16GB 10000 1000 800
# 8GB 4000 500 800
# 4GB 1300 400 400
# 2GB 600 250 320
4、创建管理MySQL数据库的shell脚本：
输入以下内容（这里的用户名admin和密码12345678接下来的步骤会创建）：
mysql_port=3307
mysql_username="admin"
mysql_password="12345678"
function_start_mysql()
{
printf "Starting MySQL...\n"
cd /usr/local/infobright/ && /bin/sh ./bin/mysqld_safe --defaults-file=/data0/mysql/${mysql_port}/my.cnf 2>&1 > /dev/null &
}
function_stop_mysql()
{
printf "Stoping MySQL...\n"
cd /usr/local/infobright/ && ./bin/mysqladmin -u ${mysql_username} -p${mysql_password} -S /tmp/mysql${mysql_port}.sock shutdown
}
function_restart_mysql()
{
printf "Restarting MySQL...\n"
function_stop_mysql
sleep 5
function_start_mysql
}
function_kill_mysql()
{
kill -9 $(ps -ef | grep ‘bin/mysqld_safe‘ | grep ${mysql_port} | awk ‘{printf $2}‘)
kill -9 $(ps -ef | grep ‘libexec/mysqld‘ | grep ${mysql_port} | awk ‘{printf $2}‘)
}
if [ "$1" = "start" ]; then
function_start_mysql
elif [ "$1" = "stop" ]; then
function_stop_mysql
elif [ "$1" = "restart" ]; then
function_restart_mysql
elif [ "$1" = "kill" ]; then
function_kill_mysql
else
printf "Usage: /data0/mysql/${mysql_port}/mysql {start|stop|restart|kill}\n"
fi
5、赋予shell脚本可执行权限：
6、启动MySQL/Infobright：
7、通过命令行登录管理MySQL服务器（提示输入密码时直接回车）：
8、输入以下SQL语句，创建一个具有root权限的用户（admin）和密码（12345678）：
GRANT ALL PRIVILEGES ON *.* TO ‘admin‘@‘127.0.0.1‘ IDENTIFIED BY ‘12345678‘;
9、示例：从普通的MySQL数据库（假设MySQL安装路径为/usr/local/webserver/mysql）导出数据到csv文件：
10、示例：普通MySQL和Infobright建表对比
①、普通MySQL的InnoDB存储引擎建表：
`id` int(11) NOT NULL AUTO_INCREMENT,
`cate_id` int(11) NOT NULL,
`site_id` int(11) unsigned NOT NULL,
`visitor_localtime` char(8) NOT NULL,
`visitor_idcookie` varchar(255) NOT NULL,
PRIMARY KEY (`id`),
KEY `cate_site_id` (`cate_id`,`site_id`),
KEY `visitor_localtime` (`visitor_localtime`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8;
②、Infobright的BRIGHTHOUSE存储引擎建表：
`id` int(11) NOT NULL,
`cate_id` int(11) NOT NULL,
`site_id` int(11) NOT NULL,
`visitor_localtime` char(8) NOT NULL,
`visitor_idcookie` varchar(255) NOT NULL,
) ENGINE=BRIGHTHOUSE DEFAULT CHARSET=utf8;
注：BRIGHTHOUSE存储引擎建表时不能有AUTO_INCREMENT自增、unsigned无符号、unique唯一、主键PRIMARY KEY、索引KEY。
11、示例：从csv文件导入数据到Infobright数据仓库：
12、示例：普通MySQL和Infobright查询速度对比（共220多万条记录）：
①、普通MySQL的InnoDB存储引擎（已建索引）：
+---------------------+---------+
| config_browser_name | total |
+---------------------+---------+
| IE | 2204016 |
| CH | 20650 |
| FF | 10475 |
| MO | 6147 |
| OT | 1631 |
| OP | 1282 |
| SF | 797 |
| KM | 5 |
| KO | 2 |
+---------------------+---------+
9 rows in set (1 min 28.13 sec)
②、Infobright的BRIGHTHOUSE存储引擎：
+---------------------+---------+
| config_browser_name | total |
+---------------------+---------+
| IE | 2204016 |
| CH | 20650 |
| FF | 10475 |
| MO | 6147 |
| OT | 1631 |
| OP | 1282 |
| SF | 797 |
| KM | 5 |
| KO | 2 |
+---------------------+---------+
9 rows in set (0.84 sec)
13、（可选）停止MySQL/Infobright：
[转]Infobright是一个与MySQL集成的开源数据仓库