Mycat中间件综合部署高可用-读写分离-分库分表（1.6）
Mycat中间件综合部署（1.6）
实施拓扑
一，环境搭建
1.服务分配
| 主机 | 服务 |
|---|---|
| 192.168.2.1 | MySQL-cluster-1 |
| 192.168.2.2 | MySQL-cluster-2 |
| 192.168.2.3 | Mycat |
2.MySQL-cluster1分配
| server-id | 端口 | 角色 |
|---|---|---|
| 1 | 3306 | master1 |
| 2 | 3307 | slave1 |
| 3 | 3308 | master2 |
| 4 | 3309 | slave2 |
3.MySQL-cluster2分配
| server-id | 端口 | 角色 |
|---|---|---|
| 5 | 3306 | master1 |
| 6 | 3307 | slave1 |
| 7 | 3308 | master2 |
| 8 | 3309 | slave2 |
4.结构
二，MySQL-cluster-1搭建
1.搭建MySQL单台多实例
rpm -e mariadb-libs-5.5.52-1.el7.x86_64 --nodeps
yum install -y ncurses-devel libaio-devel autoconf
tar zxf mysql-5.7.36-linux-glibc2.12-x86_64.tar.gz
mv mysql-5.7.36-linux-glibc2.12-x86_64 mysql
mv mysql /usr/local/
useradd -s /sbin/nologin -M -r mysql
mkdir -p /mysql/330{6,7,8,9}/data
chown -R mysql:mysql /mysql/
chown -R mysql:mysql /usr/local/mysql
ln -s /usr/local/mysql/bin/* /usr/local/bin/
2.MySQL配置文件
cat > /mysql/3306/my.cnf <<EOF
[mysqld]
basedir=/usr/local/mysql
datadir= /mysql/3306/data/
socket= /mysql/3306/mysql.sock
log_error= /mysql/3306/
port=3306
server_id=1
log_bin= /mysql/3306/data/mysql-bin
log-slave-updates=1
EOF
cat > /mysql/3307/my.cnf <<EOF
[mysqld]
basedir=/usr/local/mysql
datadir= /mysql/3307/data/
socket= /mysql/3307/mysql.sock
log_error= /mysql/3307/
port=3307
server_id=2
log_bin= /mysql/3307/data/mysql-bin
EOF
cat > /mysql/3308/my.cnf <<EOF
[mysqld]
basedir=/usr/local/mysql
datadir= /mysql/3308/data/
socket= /mysql/3308/mysql.sock
log_error= /mysql/3308/
port=3308
server_id=3
log_bin= /mysql/3308/data/mysql-bin
log-slave-updates=1
EOF
cat > /mysql/3309/my.cnf <<EOF
[mysqld]
basedir=/usr/local/mysql
datadir= /mysql/3309/data/
socket= /mysql/3309/mysql.sock
log_error= /mysql/3309/
port=3309
server_id=4
log_bin= /mysql/3309/data/mysql-bin
EOF
3.数据库初始化
mysqld --initialize-insecure --user=mysql --datadir=/mysql/3306/data --basedir=/usr/local/mysql
mysqld --initialize-insecure --user=mysql --datadir=/mysql/3307/data --basedir=/usr/local/mysql
mysqld --initialize-insecure --user=mysql --datadir=/mysql/3308/data --basedir=/usr/local/mysql
mysqld --initialize-insecure --user=mysql --datadir=/mysql/3309/data --basedir=/usr/local/mysql
4.数据库启动配置
cat > /etc/systemd/system/mysqld3306.service <<EOF
[Unit]
Description=MySQL Server
Documentation=man:mysqld(8)
Documentation=http://dev.mysql.com/doc/refman/en/using-systemd.html
After=network.target
After=syslog.target
[Install]
WantedBy=multi-user.target
[Service]
User=mysql
Group=mysql
ExecStart=/usr/local/mysql/bin/mysqld --defaults-file=/mysql/3306/my.cnf --user=mysql
LimitNOFILE = 5000
EOF
cat > /etc/systemd/system/mysqld3307.service <<EOF
[Unit]
Description=MySQL Server
Documentation=man:mysqld(8)
Documentation=http://dev.mysql.com/doc/refman/en/using-systemd.html
After=network.target
After=syslog.target
[Install]
WantedBy=multi-user.target
[Service]
User=mysql
Group=mysql
ExecStart=/usr/local/mysql/bin/mysqld --defaults-file=/mysql/3307/my.cnf --user=mysql
LimitNOFILE = 5000
EOF
cat > /etc/systemd/system/mysqld3308.service <<EOF
[Unit]
Description=MySQL Server
Documentation=man:mysqld(8)
Documentation=http://dev.mysql.com/doc/refman/en/using-systemd.html
After=network.target
After=syslog.target
[Install]
WantedBy=multi-user.target
[Service]
User=mysql
Group=mysql
ExecStart=/usr/local/mysql/bin/mysqld --defaults-file=/mysql/3308/my.cnf --user=mysql
LimitNOFILE = 5000
EOF
cat > /etc/systemd/system/mysqld3309.service <<EOF
[Unit]
Description=MySQL Server
Documentation=man:mysqld(8)
Documentation=http://dev.mysql.com/doc/refman/en/using-systemd.html
After=network.target
After=syslog.target
[Install]
WantedBy=multi-user.target
[Service]
User=mysql
Group=mysql
ExecStart=/usr/local/mysql/bin/mysqld --defaults-file=/mysql/3309/my.cnf --user=mysql
LimitNOFILE = 5000
EOF
5.启动所有MySQL
systemctl start mysqld3306.service
systemctl start mysqld3307.service
systemctl start mysqld3308.service
systemctl start mysqld3309.service
6.主从配置
注意：master的二进制日志的名称和位置，开启从后检查状态
mysql -S /mysql/3306/mysql.sock
mysql> show master status;
mysql-bin.000004 | 439
grant all on *.* to root@'%' identified by '1234.Com';
exit
mysql -S /mysql/3307/mysql.sock
change master to master_host='192.168.2.1',master_user='root',master_password='1234.Com',master_port=3306 ,master_log_file='mysql-bin.000004',master_log_pos=439;
start slave;
grant all on *.* to root@'%' identified by '1234.Com';
mysql -S /mysql/3308/mysql.sock
grant all on *.* to root@'%' identified by '1234.Com';
mysql> show master status;
mysql-bin.000001 | 439
change master to master_host='192.168.2.1',master_user='root',master_password='1234.Com',master_port=3306 ,master_log_file='mysql-bin.000004',master_log_pos=439;
start slave;
mysql -S /mysql/3309/mysql.sock
change master to master_host='192.168.2.1',master_user='root',master_password='1234.Com',master_port=3308 ,master_log_file='mysql-bin.000001',master_log_pos=439;
start slave;
grant all on *.* to root@'%' identified by '1234.Com';
mysql -S /mysql/3306/mysql.sock
change master to master_host='192.168.2.1',master_user='root',master_password='1234.Com',master_port=3308 ,master_log_file='mysql-bin.000001',master_log_pos=439;
三，MySQL-cluster-2搭建
1.搭建MySQL单台多实例
rpm -e mariadb-libs-5.5.52-1.el7.x86_64 --nodeps
yum install -y ncurses-devel libaio-devel autoconf
tar zxf mysql-5.7.36-linux-glibc2.12-x86_64.tar.gz
mv mysql-5.7.36-linux-glibc2.12-x86_64 mysql
mv mysql /usr/local/
useradd -s /sbin/nologin -M -r mysql
mkdir -p /mysql/330{6,7,8,9}/data
chown -R mysql:mysql /mysql/
chown -R mysql:mysql /usr/local/mysql
ln -s /usr/local/mysql/bin/* /usr/local/bin/
2.MySQL配置文件
cat > /mysql/3306/my.cnf <<EOF
[mysqld]
basedir=/usr/local/mysql
datadir= /mysql/3306/data/
socket= /mysql/3306/mysql.sock
log_error= /mysql/3306/
port=3306
server_id=5
log_bin= /mysql/3306/data/mysql-bin
log-slave-updates=1
EOF
cat > /mysql/3307/my.cnf <<EOF
[mysqld]
basedir=/usr/local/mysql
datadir= /mysql/3307/data/
socket= /mysql/3307/mysql.sock
log_error= /mysql/3307/
port=3307
server_id=6
log_bin= /mysql/3307/data/mysql-bin
EOF
cat > /mysql/3308/my.cnf <<EOF
[mysqld]
basedir=/usr/local/mysql
datadir= /mysql/3308/data/
socket= /mysql/3308/mysql.sock
log_error= /mysql/3308/
port=3308
server_id=7
log_bin= /mysql/3308/data/mysql-bin
log-slave-updates=1
EOF
cat > /mysql/3309/my.cnf <<EOF
[mysqld]
basedir=/usr/local/mysql
datadir= /mysql/3309/data/
socket= /mysql/3309/mysql.sock
log_error= /mysql/3309/
port=3309
server_id=8
log_bin= /mysql/3309/data/mysql-bin
EOF
3.数据库初始化
mysqld --initialize-insecure --user=mysql --datadir=/mysql/3306/data --basedir=/usr/local/mysql
mysqld --initialize-insecure --user=mysql --datadir=/mysql/3307/data --basedir=/usr/local/mysql
mysqld --initialize-insecure --user=mysql --datadir=/mysql/3308/data --basedir=/usr/local/mysql
mysqld --initialize-insecure --user=mysql --datadir=/mysql/3309/data --basedir=/usr/local/mysql
4.数据库启动配置
cat > /etc/systemd/system/mysqld3306.service <<EOF
[Unit]
Description=MySQL Server
Documentation=man:mysqld(8)
Documentation=http://dev.mysql.com/doc/refman/en/using-systemd.html
After=network.target
After=syslog.target
[Install]
WantedBy=multi-user.target
[Service]
User=mysql
Group=mysql
ExecStart=/usr/local/mysql/bin/mysqld --defaults-file=/mysql/3306/my.cnf --user=mysql
LimitNOFILE = 5000
EOF
cat > /etc/systemd/system/mysqld3307.service <<EOF
[Unit]
Description=MySQL Server
Documentation=man:mysqld(8)
Documentation=http://dev.mysql.com/doc/refman/en/using-systemd.html
After=network.target
After=syslog.target
[Install]
WantedBy=multi-user.target
[Service]
User=mysql
Group=mysql
ExecStart=/usr/local/mysql/bin/mysqld --defaults-file=/mysql/3307/my.cnf --user=mysql
LimitNOFILE = 5000
EOF
cat > /etc/systemd/system/mysqld3308.service <<EOF
[Unit]
Description=MySQL Server
Documentation=man:mysqld(8)
Documentation=http://dev.mysql.com/doc/refman/en/using-systemd.html
After=network.target
After=syslog.target
[Install]
WantedBy=multi-user.target
[Service]
User=mysql
Group=mysql
ExecStart=/usr/local/mysql/bin/mysqld --defaults-file=/mysql/3308/my.cnf --user=mysql
LimitNOFILE = 5000
EOF
cat > /etc/systemd/system/mysqld3309.service <<EOF
[Unit]
Description=MySQL Server
Documentation=man:mysqld(8)
Documentation=http://dev.mysql.com/doc/refman/en/using-systemd.html
After=network.target
After=syslog.target
[Install]
WantedBy=multi-user.target
[Service]
User=mysql
Group=mysql
ExecStart=/usr/local/mysql/bin/mysqld --defaults-file=/mysql/3309/my.cnf --user=mysql
LimitNOFILE = 5000
EOF
5.启动所有MySQL
systemctl start mysqld3306.service
systemctl start mysqld3307.service
systemctl start mysqld3308.service
systemctl start mysqld3309.service
6.主从配置
mysql -S /mysql/3306/mysql.sock
mysql> show master status;
mysql-bin.000001 | 434
grant all on *.* to root@'%' identified by '1234.Com';
mysql -S /mysql/3307/mysql.sock
change master to master_host='192.168.2.2',master_user='root',master_password='1234.Com',master_port=3306 ,master_log_file='mysql-bin.000001',master_log_pos= 434;
start slave;
grant all on *.* to root@'%' identified by '1234.Com';
mysql -S /mysql/3308/mysql.sock
grant all on *.* to root@'%' identified by '1234.Com';
mysql> show master status;
mysql-bin.000001 | 434
change master to master_host='192.168.2.2',master_user='root',master_password='1234.Com',master_port=3306 ,master_log_file='mysql-bin.000001',master_log_pos=434;
start slave;
mysql -S /mysql/3309/mysql.sock
change master to master_host='192.168.2.2',master_user='root',master_password='1234.Com',master_port=3308 ,master_log_file='mysql-bin.000001',master_log_pos=434;
start slave;
grant all on *.* to root@'%' identified by '1234.Com';
mysql -S /mysql/3306/mysql.sock
change master to master_host='192.168.2.2',master_user='root',master_password='1234.Com',master_port=3308 ,master_log_file='mysql-bin.000001',master_log_pos=434;
start slave;
四，MyCat搭建
1.安装MyCat
[root@localhost ~]# ls
anaconda-ks.cfg jdk-8u171-linux-x64.tar.gz Mycat-server-1.6.7.3-release-20210913163959-linux.tar.gz
mysql-connector-java-8.0.22.jar
tar -zxf jdk-8u171-linux-x64.tar.gz
mv jdk1.8.0_171/ /usr/local/java
vi /etc/profile
source /etc/profile
tar zxf Mycat-server-1.6.7.3-release-20210913163959-linux.tar.gz -C /usr/local/
mv mysql-connector-java-8.0.22.jar /usr/local/mycat/lib/
chmod 777 /usr/local/mycat/lib/* -R
2.schema结构
3.schema配置
DOCTYPE mycat:schema SYSTEM "schema.dtd">
<mycat:schema xmlns:mycat="http://io.mycat/">
<schema name="DB01" checkSQLschema="true" sqlMaxLimit="100">
<table name="TB_ORDER" dataNode="dn1,dn2" rule="mod-long" />
<table name="TB01" dataNode="dn1,dn2" rule="mod-long" />
schema>
<dataNode name="dn1" dataHost="dhost1" database="db01" />
<dataNode name="dn2" dataHost="dhost2" database="db01" />
<dataHost name="dhost1" maxCon="1000" minCon="10" balance="1"
writeType="0" dbType="mysql" dbDriver="jdbc" switchType="1" slaveThreshold="100">
<heartbeat>select user()heartbeat>
<writeHost host="master1" url="jdbc:mysql://192.168.2.1:3306?useSSL=false&serverTimezone=Asia/Shanghai&characterEncoding=utf8" user="root" password="1234.Com">
<readHost host="slave1" url="jdbc:mysql://192.168.2.1:3307?useSSL=false&serverTimezone=Asia/Shanghai&characterEncoding=utf8" user="root" password="1234.Com" />
writeHost>
<writeHost host="master2" url="jdbc:mysql://192.168.2.1:3308?useSSL=false&serverTimezone=Asia/Shanghai&characterEncoding=utf8" user="root" password="1234.Com">
<readHost host="slave2" url="jdbc:mysql://192.168.2.1:3309?useSSL=false&serverTimezone=Asia/Shanghai&characterEncoding=utf8" user="root" password="1234.Com" />
writeHost>
dataHost>
<dataHost name="dhost2" maxCon="1000" minCon="10" balance="1"
writeType="0" dbType="mysql" dbDriver="jdbc" switchType="1" slaveThreshold="100">
<heartbeat>select user()heartbeat>
<writeHost host="master3" url="jdbc:mysql://192.168.2.2:3306?useSSL=false&serverTimezone=Asia/Shanghai&characterEncoding=utf8" user="root" password="1234.Com">
<readHost host="slave3" url="jdbc:mysql://192.168.2.2:3307?useSSL=false&serverTimezone=Asia/Shanghai&characterEncoding=utf8" user="root" password="1234.Com" />
writeHost>
<writeHost host="master4" url="jdbc:mysql://192.168.2.2:3308?useSSL=false&serverTimezone=Asia/Shanghai&characterEncoding=utf8" user="root" password="1234.Com">
<readHost host="slave4" url="jdbc:mysql://192.168.2.2:3309?useSSL=false&serverTimezone=Asia/Shanghai&characterEncoding=utf8" user="root" password="1234.Com" />
writeHost>
dataHost>
mycat:schema>
4.server.xml配置
<user name="root" defaultAccount="true">
<property name="password">123456property>
<property name="schemas">DB01property>
5.rule.xml配置
<function name="mod-long" class="io.mycat.route.function.PartitionByMod">
<!-- how many data nodes -->
<property name="count">2</property>
</function>
五，测试
create database db01;
use db01;
create table tb01(
id int(11) not null,
name varchar(50) not null,
sex varchar(1),
primary key (id)
)engine=innodb default charset=utf8;
insert into tb01(id,name,sex) values(1,'Tom','1');
insert into tb01(id,name,sex) values(2,'Trigger','0');
insert into tb01(id,name,sex) values(3,'Dawn','1');
insert into tb01(id,name,sex) values(4,'Jack Ma','1');
insert into tb01(id,name,sex) values(5,'Coco','0');
insert into tb01(id,name,sex) values(6,'Jerry','1');
insert into tb01(id,name,sex) values(7,'JackKK Ma','1');
insert into tb01(id,name,sex) values(8,'CCCoco','0');
insert into tb01(id,name,sex) values(9,'JerryYY','1');
insert into tb01(id,name,sex) values(10,'JackKK MaAA','1');
insert into tb01(id,name,sex) values(11,'CCCocoAA','0');
insert into tb01(id,name,sex) values(12，'JerryYYAA','1');
Dawn’,‘1’);
insert into tb01(id,name,sex) values(4,‘Jack Ma’,‘1’);
insert into tb01(id,name,sex) values(5,‘Coco’,‘0’);
insert into tb01(id,name,sex) values(6,‘Jerry’,‘1’);
insert into tb01(id,name,sex) values(7,‘JackKK Ma’,‘1’);
insert into tb01(id,name,sex) values(8,‘CCCoco’,‘0’);
insert into tb01(id,name,sex) values(9,‘JerryYY’,‘1’);
insert into tb01(id,name,sex) values(10,‘JackKK MaAA’,‘1’);
insert into tb01(id,name,sex) values(11,‘CCCocoAA’,‘0’);
insert into tb01(id,name,sex) values(12，‘JerryYYAA’,‘1’);