一直想等到BETA版出來(lái)再試驗(yàn)的，可還是經(jīng)不住誘惑阿,下午終于有時(shí)間測(cè)試一下了。
（本文參考地址：http://blog.chinaunix.net/u/8111/showart.php?id=451420）
一、必備軟件：
1、LUA
?? 可以去LUA的官方下載：www.lua.org
2、MySQL Proxy
?? 這里有好多二進(jìn)制版本。
??? http://mysql.cdpa.nsysu.edu.tw/Downloads/MySQL-Proxy/
?? 或者去MYSQL官方下載源代碼。
3、測(cè)試過(guò)程中取消了B和C的REPLICATION。這樣SQL語(yǔ)句一下子就看出來(lái)從哪里來(lái)的。
如果是M-S（可以先在SLAVE上進(jìn)行STOP SLAVE）
二、測(cè)試主機(jī)地址：
1、MySQL Proxy 安裝地址：192.168.0.234(簡(jiǎn)稱A)
2、MySQL 服務(wù)器地址：192.168.0.235(簡(jiǎn)稱B)/236(簡(jiǎn)稱C)
三、安裝體驗(yàn)
如果是按照二進(jìn)制包安裝的，跳過(guò)這一步。
1、 LUA的安裝
[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;
??? 導(dǎo)出環(huán)境變量：
[root@localhost lua]#export LUA_CFLAGS="-I/usr/local/include" LUA_LIBS="-L/usr/local/lib -llua -ldl" LDFLAGS="-lm"
2、MySQL Proxy 安裝??
[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、查看幫助選項(xiàng)
[root@localhost ~]# mysql-proxy --help-all
2、對(duì)MySQL 操作
MySQL服務(wù)器假設(shè)已經(jīng)安裝。(安裝步驟這里就不寫(xiě)了)
兩臺(tái)機(jī)器上的表初始結(jié)構(gòu)和數(shù)據(jù)都是一樣的，而且都有t_girl_user這個(gè)用戶。
mysql> desc t;

+-------+----------+------+-----+---------+----------------+
| Field | Type???? | Null | Key | Default | Extra????????? |
+-------+----------+------+-----+---------+----------------+
| id??? | int(11)? | NO?? | PRI | NULL??? | auto_increment |
| c_str | char(64) | NO?? |???? |???????? |??????????????? |
+-------+----------+------+-----+---------+----------------+
2 rows in set (0.00 sec)


2 rows in set (0.00 sec)
我在B上插入一條記錄
mysql> insert into t(c_str) values('B');
Query OK, 1 row affected (0.00 sec)
在C上同樣插入一條記錄
mysql> insert into t(c_str) value('C');
Query OK, 1 row affected (0.00 sec)

mysql>
3、啟動(dòng)MySQL-Proxy（測(cè)試讀寫(xiě)分離）
[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
讓MYSQL PROXY自動(dòng)啟動(dòng)的簡(jiǎn)單腳本
#!/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
~
這個(gè)例子中限制192.168.0.236為只讀,192.168.0.235為可寫(xiě)。
4、下來(lái)我們來(lái)看試驗(yàn)結(jié)果。
我們用幾臺(tái)客戶端開(kāi)啟4個(gè)連接。
[root@localhost ~]# /usr/local/mysql/bin/mysql -ut_girl_user -p123456 -P4040 -h192.168.0.234 -Dt_girl
我這邊已經(jīng)啟動(dòng)了好幾個(gè)客戶端，這里就不貼了，命令和上面的一樣。
寫(xiě)數(shù)據(jù)。
mysql> insert into t(c_str) values ('wangwang');
Query OK, 1 row affected (0.01 sec)

mysql> show processlist;
+----+-------------+---------------------+--------+---------+------+-------+------------------+
| Id | User??????? | Host??????????????? | db???? | Command | Time | State | Info???????????? |
+----+-------------+---------------------+--------+---------+------+-------+------------------+
| 12 | t_girl_user | 192.168.0.234:44975 | t_girl | Sleep?? |?? 28 |?????? | NULL???????????? |
| 13 | t_girl_user | 192.168.0.234:44976 | t_girl | Sleep?? |?? 15 |?????? | NULL???????????? |
| 14 | t_girl_user | 192.168.0.234:44977 | t_girl | Sleep?? |?? 19 |?????? | NULL???????????? |
| 15 | t_girl_user | 192.168.0.234:44978 | t_girl | Query?? |??? 0 | NULL? | show processlist |
+----+-------------+---------------------+--------+---------+------+-------+------------------+
4 rows in set (0.00 sec)


4 rows in set (0.00 sec)
讀數(shù)據(jù)（現(xiàn)在還是寫(xiě)和讀都在B上）
mysql> select * from t;
+----+----------+
| id | c_str??? |
+----+----------+
|? 1 | B??????? |
|? 2 | wangwang |
+----+----------+
2 rows in set (0.00 sec)

再增加一個(gè)客戶端連接。

1 row in set (0.00 sec)

mysql> show processlist;
+----+-------------+---------------------+--------+---------+------+-----------------------------------------------------------------------+------------------+
|Id | User??????? | Host??????????????? | db???? | Command | Time |State???????????????????????????????????????????????????????????????? |Info???????????? |
+----+-------------+---------------------+--------+---------+------+-----------------------------------------------------------------------+------------------+
|?2 | system user |???????????????????? | NULL?? | Connect | 1842 | Hasread all relay log; waiting for the slave I/O thread to update it |NULL???????????? |
|? 5 | root??????? | localhost?????????? |t_girl | Query?? |??? 0 |NULL????????????????????????????????????????????????????????????????? |show processlist |
| 12 | t_girl_user | 192.168.0.234:44975 |t_girl | Sleep?? |? 446|??????????????????????????????????????????????????????????????????????| NULL???????????? |
| 13 | t_girl_user | 192.168.0.234:44976 |t_girl | Sleep?? |? 188|??????????????????????????????????????????????????????????????????????| NULL???????????? |
| 14 | t_girl_user | 192.168.0.234:44977 |t_girl | Sleep?? |? 206|??????????????????????????????????????????????????????????????????????| NULL???????????? |
| 15 | t_girl_user | 192.168.0.234:44978 |t_girl | Sleep?? |? 203|??????????????????????????????????????????????????????????????????????| NULL???????????? |
| 16 | t_girl_user | 192.168.0.234:44979 |t_girl | Sleep?? |? 164|??????????????????????????????????????????????????????????????????????| NULL???????????? |
| 17 | t_girl_user | 192.168.0.234:44980 |t_girl | Sleep?? |? 210|??????????????????????????????????????????????????????????????????????| NULL???????????? |
+----+-------------+---------------------+--------+---------+------+-----------------------------------------------------------------------+------------------+
8 rows in set (0.00 sec)
現(xiàn)在我們來(lái)讀數(shù)據(jù)。
mysql> select * from t;
+----+-------+
| id | c_str |
+----+-------+
|? 1 | C???? |
+----+-------+
1 row in set (0.00 sec)
這個(gè)數(shù)據(jù)很明顯是來(lái)自C的。
再插入一條記錄
mysql> insert into t(c_str) values ('wangwei');
Query OK, 1 row affected (0.00 sec)

mysql> select * from t;
+----+-------+
| id | c_str |
+----+-------+
|? 1 | C???? |
+----+-------+
1 row in set (0.00 sec)

C上的數(shù)據(jù)沒(méi)有變。
還是沒(méi)有數(shù)據(jù)。
現(xiàn)在跑到B上看看。

mysql> show processlist;
+----+-------------+---------------------+--------+---------+------+-----------------------------------------------------------------------+------------------+
|Id | User??????? | Host??????????????? | db???? | Command | Time |State???????????????????????????????????????????????????????????????? |Info???????????? |
+----+-------------+---------------------+--------+---------+------+-----------------------------------------------------------------------+------------------+
|?2 | system user |???????????????????? | NULL?? | Connect | 1842 | Hasread all relay log; waiting for the slave I/O thread to update it |NULL???????????? |
|?5 | root??????? | localhost?????????? | t_girl | Query?? |??? 0 |NULL????????????????????????????????????????????????????????????????? |show processlist |
|12 | t_girl_user | 192.168.0.234:44975 | t_girl | Sleep?? |? 446|??????????????????????????????????????????????????????????????????????| NULL???????????? |
|13 | t_girl_user | 192.168.0.234:44976 | t_girl | Sleep?? |? 188|??????????????????????????????????????????????????????????????????????| NULL???????????? |
|14 | t_girl_user | 192.168.0.234:44977 | t_girl | Sleep?? |? 206|??????????????????????????????????????????????????????????????????????| NULL???????????? |
|15 | t_girl_user | 192.168.0.234:44978 | t_girl | Sleep?? |? 203|??????????????????????????????????????????????????????????????????????| NULL???????????? |
|16 | t_girl_user | 192.168.0.234:44979 | t_girl | Sleep?? |? 164|??????????????????????????????????????????????????????????????????????| NULL???????????? |
|17 | t_girl_user | 192.168.0.234:44980 | t_girl | Sleep?? |? 210|??????????????????????????????????????????????????????????????????????| NULL???????????? |
+----+-------------+---------------------+--------+---------+------+-----------------------------------------------------------------------+------------------+


8 rows in set (0.00 sec)

mysql> select * from t;
+----+----------+
| id | c_str??? |
+----+----------+
|? 1 | B??????? |
|? 2 | wangwang |
|? 3 | wangwei? |
+----+----------+
?3 rows in set (0.00 sec)
數(shù)據(jù)被成功插入到B

這個(gè)讀寫(xiě)分離應(yīng)該看得很清楚。其他的功能等我測(cè)試了再總結(jié)吧。

如果要知道為什么連接多了才會(huì)進(jìn)行分離的話，看看
手冊(cè)

論壇里面的討論

還有其他我以前收藏的地址，可以參考以下。
http://www.infoq.com/news/2007/10/mysqlproxyrwsplitting;jsessionid=F9E0B91935E82033BAFAC067A326DC4B
http://blogs.mysql.com/kaj/2007/12/10/combining-mysql-proxy-with-mysql-cluster/

轉(zhuǎn)載于:https://www.cnblogs.com/secbook/archive/2008/05/06/2655301.html

總結(jié)

以上是生活随笔為你收集整理的MySQL Proxy 安装与读写分离体验的全部?jī)?nèi)容，希望文章能夠幫你解決所遇到的問(wèn)題。

如果覺(jué)得生活随笔網(wǎng)站內(nèi)容還不錯(cuò)，歡迎將生活随笔推薦給好友。