mysql主从（基于bin-log）以及mysql-proxy读写分离

Posted 2020-06-18

准备好三台机器：

192.168.220.129（master）

192.168.220.143（slave）

192.168.220.144（proxy）

确保三台机器上mysql（5.6.29）都已装好

my.cnf配置

master:

[mysqld1]
basedir = /usr/localmysql
datadir = /data/mysql
port = 3306
server_id=1
socket = /tmp/mysql.sock
log-bin=mysql-bin

slave:

[mysqld1]
basedir = /usr/localmysql
datadir = /data/mysql
port = 3306
server_id=2
socket = /tmp/mysql.sock

master上创建复制用户

grant replication slave on *.* to ‘server‘@‘192.168.220.144‘ identified by ‘123456‘;

flush privileges;

show master status;

mysql> show master status;
+------------------+----------+--------------+------------------+-------------------+
| File             | Position | Binlog_Do_DB | Binlog_Ignore_DB | Executed_Gtid_Set |
+------------------+----------+--------------+------------------+-------------------+
| mysql-bin.000001 |     120  |              |                  |                   |
+------------------+----------+--------------+------------------+-------------------+

slave上操作

slave stop;

change master to master_host=‘192.168.220.144‘,master_user=‘server‘,master_password=‘123456‘,master_log_file=‘mysql-bin.000001‘,master_log_pos=120;

slave start;

show slave status\G；

确保状态:
Slave_IO_Running: Yes
Slave_SQL_Running: Yes

实现读写分离

安装一些依赖包:

yum -y install gcc libevent libevent-devel readline readline-devel ncurses ncurses-devel glib2 glib2-devel

安装Lua：

wget -c tar zxvf lua-5.1.5.tar.gz

tar zxvf lua-5.1.5.tar.gz

cd lua-5.1.5

vi Makefile    #将INSTALL_TOP=/usr/local修改为:INSTALL_TOP=/usr/local/lua

vi ./src/Makefile    #将CFLAGS= -O2 -Wall $(MYCFLAGS)修改为:CFLAGS= -O2 -Wall -fPIC $(MYCFLAGS)

make linux 

make install

安装MySQL Proxy

wget -c http://dev.mysql.com/get/Downloads/MySQL-Proxy/mysql-proxy-0.8.3.tar.gz/from/http://cdn.mysql.com/ -O /usr/local/src/mysql-proxy-0.8.3.tar.gz

tar zxvf mysql-proxy-0.8.3.tar.gz

cd mysql-proxy-0.8.3

./configure LDFLAGS="-lm -ldl" LUA_CFLAGS="-I/usr/local/lua/include/" LUA_LIBS=/usr/local/lua/lib/liblua.a --prefix=/usr/local/mysql-proxy --with-lua --with-mysql=/usr/local/mysql/bin/mysql_config

make && make install

MySQL Proxy配置与启动

mkdir /usr/local/mysql-proxy/conf

mkdir /var/log/mysql-proxy

cd /usr/local/mysql-proxy/conf

vim mysql-proxy.conf

[mysql-proxy]

daemon=true

pid-file=/usr/local/mysql-proxy/mysql-proxy.pid

log-file=/var/log/mysql-proxy/mysql.log

log-level=debug

LUA_PATH="/usr/local/src//usr/local/src/mysql-proxy-0.8.3/lib/?.lua"

proxy-lua-script=/usr/local/src/mysql-proxy-0.8.3/lib/rw-splitting.lua

proxy-address=192.168.220.129:3306

proxy-read-only-backend-addresses=192.168.220.143:3306

proxy-backend-addresses=192.168.220.144:3306

keepalive=true

proxy-skip-profiling=true

#proxy-connect-timeout=2

#proxy-read-timeout=60

#proxy-write-timeout=30

admin-address=:4041

admin-lua-script=/usr/local/src/mysql-proxy-0.8.3/lib/admin.lua

admin-username=admin

admin-password=admin

plugins=proxy,admin

chmod 660 mysql-proxy.conf

vim /usr/local/src/mysql-proxy-0.8.3/lib/rw-splitting.lua

--- config

--
-- connection pool
if not proxy.global.config.rwsplit then
        proxy.global.config.rwsplit = {                
                min_idle_connections = 1,
                max_idle_connections = 3,

                is_debug = false
        }
end

启动MySQL Proxy

[[email protected] conf]# /usr/local/mysql-proxy/bin/mysql-proxy --defaults-file=/usr/local/mysql-proxy/conf/mysql-proxy.conf

查看启动日志：

[[email protected] conf]# tail -f /var/log/mysql-proxy/mysql.log

2016-03-04 19:54:03: (message) shutting down normally, exit code is: 0

2016-03-04 19:54:18: (message) chassis-unix-daemon.c:136: [angel] we try to keep PID=10766 alive

2016-03-04 19:54:18: (debug) chassis-unix-daemon.c:157: waiting for 10766

2016-03-04 19:54:18: (debug) chassis-unix-daemon.c:121: we are the child: 10766

2016-03-04 19:54:18: (critical) plugin proxy 0.8.3 started

2016-03-04 19:54:18: (critical) plugin admin 0.8.3 started

2016-03-04 19:54:18: (debug) max open file-descriptors = 1024

2016-03-04 19:54:18: (message) proxy listening on port 192.168.220.129:3306

2016-03-04 19:54:18: (message) added read/write backend: 192.168.220.144:3306

2016-03-04 19:54:18: (message) added read-only backend: 192.168.220.143:3306