mysql 主从复制搭建

Posted 2020-12-21

mysql 主从复制搭建

-------------------------Mysql主从复制--------------------------------------
环境

master       192.168.100.150
slave01      192.168.100.160
slave02      192.168.100.170
amoeba       192.168.100.130
客户端mysql  192.168.100.120
--------------------------主服务器
master  192.168.100.150
1.修改/etc/my.cnf配置文件，增加服务器id，配置二进制日志选项
systemctl stop firewalld
set enforce 0
vim /etc/my.cnf
server-id = 11
log-bin=master-bin
log-slave-updates=true

systemctl restart mysqld.service
mysql -uroot -pabc123

mysql> grant replication slave on *.* to ‘myslave‘@‘192.168.100.%‘ identified by  ‘123456‘;
mysql> flush privileges;
mysql> show master status;
--------------------------从服务器-----------------------
slave01 192.168.100.160

vim /etc/my.cnf
‘//mysqld字段下面修改‘
server-id = 22
relay-log=relay-log-bin
relay-log-index=slave-relay-bin.index

mysql> change master to master_host=‘192.168.100.150‘,master_user=‘myslave‘,master_password=‘123456‘,master_log_file=‘master-bin.000013‘,master_log_pos=154;
flush privileges;

flush privileges;
mysql> start slave;
mysql> show slave statusG;

slave02 192.168.100.170

vim /etc/my.cnf
‘//mysqld字段下面修改‘
server-id = 23
relay-log=relay-log-bin
relay-log-index=slave-relay-bin.index

systemctl restart mysqld.service

mysql -uroot -pabc23
Enter password: 
mysql> change master to master_host=‘192.168.100.150‘,master_user=‘myslave‘,master_password=‘123456‘,master_log_file=‘master-bin.000013‘,master_log_pos=154;
flush privileges;
mysql> start slave;

mysql> show slave statusG;

    Slave_IO_Running: Yes   ‘//发现IO是正常的‘
    Slave_SQL_Running: Yes  ‘//SQL是正常的‘

----------------------------------读写分离----------------------------------
###读写分离的前提是已部署主从服务
cd /opt
上传jdk-6u14-linux-x64.bin amoeba-mysql-binary-2.2.0.tar.gz两个文件
cp jdk-6u14-linux-x64.bin /usr/local/
cd /usr/local/
chmod +x jdk-6u14-linux-x64.bin 
./jdk-6u14-linux-x64.bin
Do you agree to the above license terms? [yes or no]
yes

mv jdk1.6.0_14/ jdk1.6
vim /etc/profile
export JAVA_HOME=/usr/local/jdk1.6
export CLASSPATH=$CLASSPATH:$JAVA_HOME/lib:$JAVA_HOME/jre/lib
export PATH=$JAVA_HOME/lib:$JAVA_HOME/jre/bin:$PATH:$HOME/bin
export AMOEBA_HOME=/usr/local/amoeba
export PATH=$PATH:$AMOEBA_HOME/bin

source /etc/profile
mkdir /usr/local/amoeba
cd /opt
tar zxvf amoeba-mysql-binary-2.2.0.tar.gz -C /usr/local/amoeba/
chmod -R 755 /usr/local/amoeba/
/usr/local/amoeba/bin/amoeba
显示amoeba start|stop    //说明安装成功

***三台mysql服务器添加权限和用户开放给amoeba访问
mysql> grant all on *.* to ‘test‘@‘192.168.100.%‘ identified by ‘123.com‘;
mysql> flush privileges;
show grants for ‘test‘@‘192.168.100.%‘;
cd /usr/local/amoeba/conf
****编辑amoeba主配置文件
vim amoeba.xml   
//第30行修改
 30        <property name="user">amoeba</property>   //客户访问amoeba账户
 31 
 32        <property name="password">123456</property>  //使用123456密码访问amoeba服务器‘
//第115行修改
//开启读写功能池设定‘
115         <property name="defaultPool">master</property>   //修改默认地址池为master
116 
117         <!-- -->    ‘//117行取消注释‘
118         <property name="writePool">master</property>      //修改写为master
119         <property name="readPool">slaves</property>       //修改读为slaves
120                     //120行删除-->注释符号

‘//编辑数据库配置文件‘ 

vim dbServers.xml
22           <!-- mysql schema -->
 23          <property name="schema">mysql</property>      ‘//amoeba默认读取的库将test修改为mysql;23行test修改为mysql‘ 5.5版本这里是test,原本有这个库,5.7没有自带这个test库,所以要修改
 24 
 //‘设置amoeba访问mysql数据库的用户和密码‘

 25           <!-- mysql user -->
 26           <property name="user">test</property>   ‘//26行修改用户名‘
 27 
 28           <!--  mysql password -->                ‘//28行-30行取消注释‘              
 29           <property name="password">123.com</property>  ‘//29行修改密码‘

45         <dbServer name="master"  parent="abstractServer">   ‘//45行主mysql服务器名称修改为master‘
 46                 <factoryConfig>
 47                         <!-- mysql ip -->
 48                         <property name="ipAddress">192.168.100.150</property>   ‘48行//修改主服务器IP‘
 49                 </factoryConfig>
 50         </dbServer>
 51 
 52         <dbServer name="slave1"  parent="abstractServer">    ‘//52行修改从服务器1的名称‘
 53                 <factoryConfig>
 54                         <!-- mysql ip -->
 55                         <property name="ipAddress">192.168.100.160</property>  ‘//修改从服务器1的地址‘
 56                 </factoryConfig>
 57         </dbServer>
 58 ‘将上面从服务器配置的7行复制下来修改名称slave2和ip地址‘
 59         <dbServer name="slave2"  parent="abstractServer">      ‘//修改从服务器2的名称‘
 60                 <factoryConfig>
 61                         <!-- mysql ip -->
 62                         <property name="ipAddress">192.168.100.170</property>   ‘//修改从服务器1的地址
 63                 </factoryConfig>
 64         </dbServer>
 65 ‘//修改数据库从服务器池‘
 66         <dbServer name="slaves" virtual="true">    //修改服务器的名称为slaves‘
 67                 <poolConfig class="com.meidusa.amoeba.server.MultipleServerPool">
 68                         <!-- Load balancing strategy: 1=ROUNDROBIN , 2=WEIGHTBASED , 3=HA-->
 69                         <property name="loadbalance">1</property>
 70 
 71                         <!-- Separated by commas,such as: server1,server2,server1 -->
 72                         <property name="poolNames">slave1,slave2</property>   ‘//添加两个从服务器名称slave1,slave2‘
 73                 </poolConfig>
 74         </dbServer>

开启amoeba软件，放到后台运行
[root@amoeba conf]# /usr/local/amoeba/bin/amoeba start &
[3] 11060
[root@amoeba conf]# log4j:WARN log4j config load completed from file:/usr/local/amoeba/conf/log4j.xml
2020-08-27 00:26:27,797 INFO  context.MysqlRuntimeContext - Amoeba for Mysql current versoin=5.1.45-mysql-amoeba-proxy-2.2.0
log4j:WARN ip access config load completed from file:/usr/local/amoeba/conf/access_list.conf
2020-08-27 00:26:27,916 INFO  net.ServerableConnectionManager - Amoeba for Mysql listening on 0.0.0.0/0.0.0.0:8066.
2020-08-27 00:26:27,916 INFO  net.ServerableConnectionManager - Amoeba Monitor Server listening on /127.0.0.1:5790.

‘//此时处于持续监控状态，无法输入命令,但是不要关闭,在连接一个窗口看端口有没有开启‘

[root@amoeba ~]# netstat -ntap | grep 8066
tcp6       0      0 :::8066                 :::*                    LISTEN      11060/java 

--------------------------------------------客户端安装mysql验证--------------------------------------------[root@localhost ~]# yum install -y mysql
systemctl stop firewalld.service 
setenforce 0
yum install mysql -y
mysql -u amoeba -pabc123 -h 192.168.100.130 -P8066

***测试读写分离，关闭主从复制功能
两台从服务器关闭slave功能
stop slave;
show slave statusG;
...省略内容
             Slave_IO_Running: No   ‘//发现功能已被关闭‘
            Slave_SQL_Running: No
...省略内容
***从服务器配置数据，验证读写分离
客户机
MySQL [(none)]> create database accp;
Query OK, 1 row affected (0.02 sec)
mysql> show databases;            //主服务器能看见accp库
+--------------------+
| Database           |
+--------------------+
| information_schema |
| accp               |
| mysql              |
| performance_schema |
| sys                |
+--------------------+
5 rows in set (0.00 sec)
mysql> show databases;           //两台从服务器都看不见accp库
+--------------------+
| Database           |
+--------------------+
| information_schema |
| mysql              |
| performance_schema |
| sys                |
+--------------------+
4 rows in set (0.00 sec)
‘//会发现主服务器有，但是从服务器没有，说明主从复制功能已经关闭‘

***验证读分离

mysql> use mysql;   
Database changed
mysql> create table info (id int not null,name char(10));
Query OK, 0 rows affected (0.01 sec)

mysql> insert into info values(1,‘zhangsan‘);   ‘//添加zhangsan记录‘
Query OK, 1 row affected (0.02 sec)

mysql> select * from info;
+----+----------+
| id | name     |
+----+----------+
|  1 | zhangsan |
+----+----------+
1 row in set (0.00 sec)

‘//slave1从服务器设置：‘
mysql> use mysql;
Database changed
mysql> create table info(id int not null,name char(10));
Query OK, 0 rows affected (0.01 sec)

mysql> insert into info values(2,‘lisi‘);   ‘//添加lisi记录‘
Query OK, 1 row affected (0.02 sec)

mysql> select * from info;
+----+------+
| id | name |
+----+------+
|  2 | lisi |
+----+------+
1 row in set (0.00 sec)

****客户端测试
MySQL [(none)]> use mysql;
MySQL [mysql]> select * from info;
+----+----------+
| id | name     |
+----+----------+
|  1 | zhangsan |
+----+----------+
1 row in set (0.00 sec)

MySQL [mysql]> select * from info;
+----+------+
| id | name |
+----+------+
|  2 | lisi |
+----+------+
1 row in set (0.01 sec)

‘//发现每一次查询都会轮询在slave1和slave2上查询数据，如果开启主从复制，则数据都会相同‘
‘//读写分离试验成功‘