MySQL Proxy 安装与读写分离体验
一直想等到BETA版出来再试验的,可还是经不住诱惑阿,下午终于有时间测试一下了。
一、必备软件:
1、LUA
可以去LUA的官方下载:www.lua.org
2、MySQL Proxy
这里有好多二进制版本。
http://mysql.cdpa.nsysu.edu.tw/Downloads/MySQL-Proxy/
或者去MYSQL官方下载源代码。
3、测试过程中取消了B和C的REPLICATION。这样SQL语句一下子就看出来从哪里来的。
如果是M-S(可以先在SLAVE上进行STOP SLAVE)
二、测试主机地址:
1、MySQL Proxy 安装地址:192.168.0.234(简称A)
2、MySQL 服务器地址:192.168.0.235(简称B)/236(简称C)
三、安装体验
如果是按照二进制包安装的,跳过这一步。
1、 LUA的安装
[root@localhost ~]#tar zxvf lua-5.1.2.tar.gz -C /usr/local
[root@localhost ~]# cd /usr/local/
[root@localhost local]# mv lua-5.1 lua
[root@localhost lua]# cd lua
[root@localhost lua]#make local;make install;
导出环境变量:
[root@localhost lua]#export LUA_CFLAGS="-I/usr/local/include" LUA_LIBS="-L/usr/local/lib -llua -ldl" LDFLAGS="-lm"
2、MySQL Proxy 安装
[root@localhost ~]#tar -zxvf mysql-proxy-0.6.1-linux-rhel4-x86-32bit.tar.gz -C /usr/local/mysql/
[root@localhost ~]#cd /usr/local/mysql
[root@localhost mysql]#mv mysql-proxy-0.6.1-linux-rhel4-x86-32bit/ mysql-proxy
[root@localhost sbin]# export PATH=$PATH:/usr/local/mysql/mysql-proxy/sbin/
四、使用MySQL Proxy
1、查看帮助选项
[root@localhost ~]# mysql-proxy --help-all
2、对MySQL 操作
MySQL服务器假设已经安装。(安装步骤这里就不写了)
两台机器上的表初始结构和数据都是一样的,而且都有t_girl_user这个用户。<span style="color: #000000;">mysql<span style="color: #0000cc;">></span> <span style="color: #0000ff;">desc</span> t<span style="color: #0000cc;">;</span><br><span style="color: #0000cc;"><br>+-------+----------+------+-----+---------+----------------+<br>| Field | Type | Null | Key | Default | Extra |<br>+-------+----------+------+-----+---------+----------------+<br>| id | int(11) | NO | PRI | NULL | auto_increment | <br>| c_str | char(64) | NO | | | | <br>+-------+----------+------+-----+---------+----------------+<br>2 rows in set (0.00 sec)<br><br></span><br>2 <span style="color: #0000ff;">rows</span> <span style="color: #0000ff;">in</span> <span style="color: #0000ff;">set</span> <span style="color: #0000cc;">(</span>0<span style="color: #0000cc;">.</span>00 sec<span style="color: #0000cc;">)</span><br><span style="color: #009902;">我在B上插入一条记录</span><br style="color: #009902;"><span style="color: #000102;">mysql> insert into t(c_str) values('B');</span><br style="color: #000102;"><span style="color: #000102;">Query OK, 1 row affected (0.00 sec)</span><br style="color: #009902;"><span style="color: #009902;">在C上同样插入一条记录</span><br style="color: #009902;"><span style="color: #000102;">mysql> insert into t(c_str) value('C');</span><br style="color: #000102;"><span style="color: #000102;">Query OK, 1 row affected (0.00 sec)</span><br></span>
mysql>
3、启动MySQL-Proxy(测试读写分离)
[root@localhostsbin]# mysql-proxy--proxy-read-only-backend-addresses=192.168.0.236:3306--proxy-backend-addresses=192.168.0.235:3306 --proxy-lua-script=/usr/local/mysql/mysql-proxy/share/mysql-proxy/rw-splitting.lua&
[1] 32554
让MYSQL PROXY自动启动的简单脚本
#!/bin/sh
# export PATH=$PATH:/usr/local/mysql-proxy
cd /usr/local/mysql-proxy
./mysql-proxy--proxy-read-only-backend-addresses=192.168.0.236:3306--proxy-backend-addresses=192.168.0.235:3306--proxy-lua-script=rw-splitting.lua >> /tmp/log
~
这个例子中限制192.168.0.236为只读,192.168.0.235为可写。
4、下来我们来看试验结果。
我们用几台客户端开启4个连接。
[root@localhost ~]# /usr/local/mysql/bin/mysql -ut_girl_user -p123456 -P4040 -h192.168.0.234 -Dt_girl
我这边已经启动了好几个客户端,这里就不贴了,命令和上面的一样。
写数据。<span style="color: #000000;">mysql<span style="color: #0000cc;">></span> <span style="color: #0000ff;">insert</span> <span style="color: #0000ff;">into</span> t<span style="color: #0000cc;">(</span>c_str<span style="color: #0000cc;">)</span> <span style="color: #0000ff;">values</span> <span style="color: #0000cc;">(</span><span style="color: #ff00ff;">'wangwang'</span><span style="color: #0000cc;">)</span><span style="color: #0000cc;">;</span><br>Query OK<span style="color: #0000cc;">,</span> 1 <span style="color: #0000ff;">row</span> affected <span style="color: #0000cc;">(</span>0<span style="color: #0000cc;">.</span>01 sec<span style="color: #0000cc;">)</span><br><span style="color: #0000cc;"><br>mysql> show processlist;<br><span style="color: #000102;">+----+-------------+---------------------+--------+---------+------+-------+------------------+</span><br style="color: #000102;"><span style="color: #000102;">| Id | User | Host | db | Command | Time | State | Info |</span><br style="color: #000102;"><span style="color: #000102;">+----+-------------+---------------------+--------+---------+------+-------+------------------+</span><br style="color: #000102;"><span style="color: #000102;">| 12 | t_girl_user | 192.168.0.234:44975 | t_girl | Sleep | 28 | | NULL | </span><br style="color: #000102;"><span style="color: #000102;">| 13 | t_girl_user | 192.168.0.234:44976 | t_girl | Sleep | 15 | | NULL | </span><br style="color: #000102;"><span style="color: #000102;">| 14 | t_girl_user | 192.168.0.234:44977 | t_girl | Sleep | 19 | | NULL | </span><br style="color: #000102;"><span style="color: #000102;">| 15 | t_girl_user | 192.168.0.234:44978 | t_girl | Query | 0 | NULL | show processlist | </span><br style="color: #000102;"><span style="color: #000102;">+----+-------------+---------------------+--------+---------+------+-------+------------------+</span><br style="color: #000102;"><span style="color: #000102;">4 rows in set (0.00 sec)</span><br style="color: #000102;"></span><span style="color: #ff9900;"><br></span><br>4 <span style="color: #0000ff;">rows</span> <span style="color: #0000ff;">in</span> <span style="color: #0000ff;">set</span> <span style="color: #0000cc;">(</span>0<span style="color: #0000cc;">.</span>00 sec<span style="color: #0000cc;">)</span><br><span style="color: #009902;">读数据(现在还是写和读都在B上)</span><br>mysql> select * from t;<br>+----+----------+<br>| id | c_str |<br>+----+----------+<br>| 1 | B | <br>| 2 | wangwang | <br>+----+----------+<br>2 rows in set (0.00 sec)</span>
MySQL Proxy 的详细介绍:请点这里
MySQL Proxy 的下载地址:请点这里
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