實驗環境搭建：
mysql-proxy 192.168.1.163
mysql-master 192.168.1.164 （主）
mysql-slave 192.168.1.162 （從）
配置：mysql-proxy 192.168.1.163
#yum install lua -y
lua-5.1.4-4.1.el6.x86_64(大部分都是默認安裝過的)
下載mysql-proxy最新版：MySQL Proxy 0.8.1 alpha
#yum install lrzsz -y
#rz (上傳mysql-proxy)
#tar zxvf mysql-proxy-0.8.5-linux-el6-x86-64bit.tar.gz
#mv mysql-proxy-0.8.5-linux-el6-x86-64bit /usr/local/mysql-proxy
#ls -l /usr/local/mysql-proxy
drwxr-xr-x. 2 7161 wheel 4096 Aug 19 2014 bin
drwxr-xr-x. 2 7161 wheel 4096 Aug 19 2014 include
drwxr-xr-x. 6 7161 wheel 4096 Aug 19 2014 lib
drwxr-xr-x. 2 7161 wheel 4096 Aug 19 2014 libexec
drwxr-xr-x. 7 7161 wheel 4096 Aug 19 2014 licenses
drwxr-xr-x. 3 7161 wheel 4096 Aug 19 2014 share
#ehho "PATH=$PATH:/usr/local/mysql-proxy/bin/">> /etc/bashrc
#export PATH=$PATH:/usr/local/mysql-proxy/bin/
#source /etc/bashrc 刷新
mysql-master 192.168.1.164 （主）
#yum install mysql mysql-server -y
#/etc/init.d/mysqld start
#mysql
mysql> create database db;
Query OK, 1 rowaffected (0.00 sec)
mysql> use db;
Database changed
mysql> show databases;
+--------------------+
| Database |
+--------------------+
|information_schema |
| db |
| mysql |
| test |
+--------------------+
4 rows in set(0.00 sec)
mysql> create table test(id int);
Query OK, 0 rowsaffected (0.04 sec)
mysql> insert into testvalues(6363);
Query OK, 1 rowaffected (0.00 sec)
mysql> grant all on db.* to user1@'%' identified by '123456' ; 登錄的用戶及權限密碼。
Query OK, 0 rowsaffected (0.00 sec)
mysql-slave 192.168.1.162 （從）（步驟同上和主服務器一樣的配置）
#yum install mysql mysql-server -y
#/etc/init.d/mysqld start
#mysql
mysql> create database db;
Query OK, 1 rowaffected (0.00 sec)
mysql> use db;
Database changed
mysql> show databases;
+--------------------+
| Database |
+--------------------+
|information_schema |
| db |
| mysql |
| test |
+--------------------+
4 rows in set(0.00 sec)
mysql> create table test(id int);
Query OK, 0 rowsaffected (0.04 sec)
mysql> insert into testvalues(6363);
Query OK, 1 rowaffected (0.00 sec)
mysql> grant all on db.* to user1@'%' identified by '123456' ; 登錄的用戶及權限密碼。
Query OK, 0 rowsaffected (0.00 sec)
配置：mysql-proxy 192.168.1.163
#mysql-proxy -r 192.168.0.162:3306 -b 192.168.0.164:3306 -s /usr/local/mysql-proxy/share/doc/mysql-proxy/rw-splitting.lua &
-r 指定讀服務器
-b 指定些服務器
-s 指定使用那個lua(我這們這邊做的讀寫分離所以選rw-splitting.lua)
執行命令後提示：
2016-03-18 00:32:38: (critical) plugin proxy 0.8.5 started
# netstat -antup|grep proxy
tcp 0 0 0.0.0.0:4040 0.0.0.0:* LISTEN 3323/mysql-proxy
測試：
#mysql -u user1 -p123456 -P 4040 -h 192.168.0.163(拿mysql-proxy做pc機測試。)
mysql> use db ;
Reading table information for completion of table and column names
You can turn off this feature to get a quicker startup with -A
Database changed
mysql> select *from test;
server default db:
client default db: db
syncronizing
+------+
| id |
+------+
| 62 |
+------+
1 row in set (0.00 sec)
mysql> insert into test values(63);
Query OK, 1 row affected (0.00 sec)
mysql> select *from test;
+------+
| id |
+------+
| 62 |
+------+
1 row in set (0.00 sec)
測試寫數據沒有問題，但是select *from test;查看不到，說明現在已經實現讀寫分離。
檢測數據登錄1.162從（只讀服務器）
mysql> use db;
Database changed
mysql> select *from test;
+------+
| id |
+------+
| 62 |
+------+
1 row in set (0.00 sec)
檢測數據登錄1.164從（寫服務器）
mysql> use db;
Database changed
mysql> select *from test;
+------+
| id |
+------+
| 64 |
| 63 |
+------+
2 rows in set (0.00 sec)
在1.163上面insert into test values(63);添加的63來到（1.64寫服務器）。
讀寫分離成功。
那下面我們配置mysql主從:
mysql-master 192.168.1.164 （主）
#vim /etc/my.conf
[mysqld]
datadir=/var/lib/mysql
socket=/var/lib/mysql/mysql.sock
user=mysql
# Disabling symbolic-links is recommended to prevent assorted security risks
symbolic-links=0
log-bin=mysqllog
server-id=1 添加這三行。
binlog-do-db=db
[mysqld_safe]
log-error=/var/log/mysqld.log
pid-file=/var/run/mysqld/mysqld.pid
登錄數據庫：主服務器
mysql> grant all on *.* to user2@'%' identified by '123456';
Query OK, 0 rows affected (0.00 sec)
建個同步的賬戶.
mysql> drop table test; 刪除test表格
#service mysqld restart
mysql-slave 192.168.1.162 （從）
#vim /etc/my.conf
[mysqld]
datadir=/var/lib/mysql
socket=/var/lib/mysql/mysql.sock
user=mysql
# Disabling symbolic-links is recommended to prevent assorted security risks
symbolic-links=0
server-id=2
master-host=192.168.0.164 t添加這4行
master-user=user2
master-password=123456
[mysqld_safe]
log-error=/var/log/mysqld.log
pid-file=/var/run/mysqld/mysqld.pid
登錄數據庫：從服務器
mysql> drop table test; 刪除test表格
#service mysqld restart
登錄：mysql-master 192.168.1.164 （主）
mysql> use db;
Database changed
mysql> create table test (id int );
Query OK, 0 rows affected (0.03 sec)
mysql> insert into test values(62);
Query OK, 1 row affected (0.00 sec)
mysql> insert into test values(63);
Query OK, 1 row affected (0.00 sec)
建立test表。
登錄：mysql-slave 192.168.1.162 （從）
mysql> use db ;
Database changed
mysql> select *from test;
+------+
| id |
+------+
| 62 |
| 63 |
+------+
2 rows in set (0.00 sec)
數據已同步過來。
mysql> show slave status \G;
*************************** 1. row ***************************
Slave_IO_State: Waiting for master to send event
Master_Host: 192.168.0.164
Master_User: user2
Master_Port: 3306
Connect_Retry: 60
Master_Log_File: mysqllog.000002
Read_Master_Log_Pos: 622
Relay_Log_File: mysqld-relay-bin.000002
Relay_Log_Pos: 514
Relay_Master_Log_File: mysqllog.000002
Slave_IO_Running: Yes
Slave_SQL_Running: Yes
Replicate_Do_DB:
Replicate_Ignore_DB:
Replicate_Do_Table:
Replicate_Ignore_Table:
Replicate_Wild_Do_Table:
Replicate_Wild_Ignore_Table:
Last_Errno: 0
Last_Error:
Skip_Counter: 0
Exec_Master_Log_Pos: 622
Relay_Log_Space: 670
Until_Condition: None
Until_Log_File:
Until_Log_Pos: 0
Master_SSL_Allowed: No
Master_SSL_CA_File:
Master_SSL_CA_Path:
Master_SSL_Cert:
Master_SSL_Cipher:
Master_SSL_Key:
Seconds_Behind_Master: 0
Master_SSL_Verify_Server_Cert: No
Last_IO_Errno: 0
Last_IO_Error:
Last_SQL_Errno: 0
Last_SQL_Error:
1 row in set (0.00 sec)
ERROR:
No query specified
mysql>