MySQL 部署分布式架构 MyCAT (一)

架构

MySQL 部署分布式架构 MyCAT (一)_第1张图片

环境

主机名 IP
db1 192.168.31.205
db2 192.168.31.206

前期准备

开启防火墙,安装配置 mysql (db1,db2)

firewall-cmd --permanent --add-rich-rule="rule family="ipv4" source address="192.168.31.0/24" accept"
firewall-cmd --reload

mkdir /software
# 把软件 mysql-5.7.20-linux-glibc2.12-x86_64.tar.gz 上传到  /software
cd /usr/local/
tar zxf /software/mysql-5.7.20-linux-glibc2.12-x86_64.tar.gz
mv mysql-5.7.20-linux-glibc2.12-x86_64 mysql

# 初始化数据
mkdir /data/33{07..10}/data -p
mysqld --initialize-insecure  --user=mysql --datadir=/data/3307/data --basedir=/usr/local/mysql
mysqld --initialize-insecure  --user=mysql --datadir=/data/3308/data --basedir=/usr/local/mysql
mysqld --initialize-insecure  --user=mysql --datadir=/data/3309/data --basedir=/usr/local/mysql
mysqld --initialize-insecure  --user=mysql --datadir=/data/3310/data --basedir=/usr/local/mysql

配置 MySQL my.cnf配置 及启动脚本(db1)

cat >/data/3307/my.cnf</data/3308/my.cnf</data/3309/my.cnf</data/3310/my.cnf</etc/systemd/system/mysqld3307.service</etc/systemd/system/mysqld3308.service</etc/systemd/system/mysqld3309.service</etc/systemd/system/mysqld3310.service<

配置 MySQL my.cnf配置 及启动脚本(db2)

cat >/data/3307/my.cnf</data/3308/my.cnf</data/3309/my.cnf</data/3310/my.cnf</etc/systemd/system/mysqld3307.service</etc/systemd/system/mysqld3308.service</etc/systemd/system/mysqld3309.service</etc/systemd/system/mysqld3310.service<

修改权限,启动多实例(db1, db2)

chown -R mysql.mysql /data/*

systemctl start mysqld3307
systemctl start mysqld3308
systemctl start mysqld3309
systemctl start mysqld3310

mysql -S /data/3307/mysql.sock -e "show variables like 'server_id'"
mysql -S /data/3308/mysql.sock -e "show variables like 'server_id'"
mysql -S /data/3309/mysql.sock -e "show variables like 'server_id'"
mysql -S /data/3310/mysql.sock -e "show variables like 'server_id'"

分片规划

shard1:
    Master:192.168.31.205:3307
    slave1:192.168.31.205:3309
    Standby Master:192.168.31.206:3307
    slave2:192.168.31.206:3309
shard2:
    Master:192.168.31.206:3308
    slave1:192.168.31.206:3310
    Standby Master:192.168.31.205:3308
    slave2:192.168.31.205:3310

配置 shard1

# 192.168.31.205:3307 <-----> 192.168.31.206:3307(互为主从)
# db2:
mysql  -S /data/3307/mysql.sock -e "grant replication slave on *.* to repl@'192.168.31.%' identified by '123';"
mysql  -S /data/3307/mysql.sock -e "grant all  on *.* to root@'192.168.31.%' identified by '123'  with grant option;"
# db1:
mysql  -S /data/3307/mysql.sock -e "CHANGE MASTER TO MASTER_HOST='192.168.31.206', MASTER_PORT=3307, MASTER_AUTO_POSITION=1, MASTER_USER='repl', MASTER_PASSWORD='123';"
mysql  -S /data/3307/mysql.sock -e "start slave;"
mysql  -S /data/3307/mysql.sock -e "show slave status\G"
# db2:
mysql  -S /data/3307/mysql.sock -e "CHANGE MASTER TO MASTER_HOST='192.168.31.205', MASTER_PORT=3307, MASTER_AUTO_POSITION=1, MASTER_USER='repl', MASTER_PASSWORD='123';"
mysql  -S /data/3307/mysql.sock -e "start slave;"
mysql  -S /data/3307/mysql.sock -e "show slave status\G"

# 192.168.31.205:3309 ------> 192.168.31.205:3307(3307 为主库,3309为从库)
# db1:
mysql  -S /data/3309/mysql.sock  -e "CHANGE MASTER TO MASTER_HOST='192.168.31.205', MASTER_PORT=3307, MASTER_AUTO_POSITION=1, MASTER_USER='repl', MASTER_PASSWORD='123';"
mysql  -S /data/3309/mysql.sock  -e "start slave;"
mysql  -S /data/3309/mysql.sock  -e "show slave status\G"

# 192.168.31.206:3309 ------> 192.168.31.206:3307(3307 为主库,3309为从库)
# db2:
mysql  -S /data/3309/mysql.sock -e "CHANGE MASTER TO MASTER_HOST='192.168.31.206', MASTER_PORT=3307, MASTER_AUTO_POSITION=1, MASTER_USER='repl', MASTER_PASSWORD='123';"
mysql  -S /data/3309/mysql.sock -e "start slave;"
mysql  -S /data/3309/mysql.sock -e "show slave status\G"

配置 shard2

# 192.168.31.206:3308 <-----> 192.168.31.205:3308(互为主从)
# db2:
mysql  -S /data/3308/mysql.sock -e "grant replication slave on *.* to repl@'192.168.31.%' identified by '123';"
mysql  -S /data/3308/mysql.sock -e "grant all  on *.* to root@'10.0.0.%' identified by '123'  with grant option;"
# db1: 
mysql  -S /data/3308/mysql.sock -e "CHANGE MASTER TO MASTER_HOST='192.168.31.206', MASTER_PORT=3308, MASTER_AUTO_POSITION=1, MASTER_USER='repl', MASTER_PASSWORD='123';"
mysql  -S /data/3308/mysql.sock -e "start slave;"
mysql  -S /data/3308/mysql.sock -e "show slave status\G"
# db2:
mysql  -S /data/3308/mysql.sock -e "CHANGE MASTER TO MASTER_HOST='192.168.31.205', MASTER_PORT=3308, MASTER_AUTO_POSITION=1, MASTER_USER='repl', MASTER_PASSWORD='123';"
mysql  -S /data/3308/mysql.sock -e "start slave;"
mysql  -S /data/3308/mysql.sock -e "show slave status\G"

# 192.168.31.206:3310 -----> 192.168.31.206:3308(3308 为主库,3310为从库)
# db2:
mysql  -S /data/3310/mysql.sock -e "CHANGE MASTER TO MASTER_HOST='192.168.31.206', MASTER_PORT=3308, MASTER_AUTO_POSITION=1, MASTER_USER='repl', MASTER_PASSWORD='123';"
mysql  -S /data/3310/mysql.sock -e "start slave;"
mysql  -S /data/3310/mysql.sock -e "show slave status\G"

# 192.168.31.205:3310 -----> 192.168.31.205:3308(3308 为主库,3310为从库)
# db1: 
mysql  -S /data/3310/mysql.sock -e "CHANGE MASTER TO MASTER_HOST='192.168.31.205', MASTER_PORT=3308, MASTER_AUTO_POSITION=1, MASTER_USER='repl', MASTER_PASSWORD='123';"
mysql  -S /data/3310/mysql.sock -e "start slave;"
mysql  -S /data/3310/mysql.sock -e "show slave status\G"

检测主从状态

mysql -S /data/3307/mysql.sock -e "show slave status\G"|grep Yes
mysql -S /data/3308/mysql.sock -e "show slave status\G"|grep Yes
mysql -S /data/3309/mysql.sock -e "show slave status\G"|grep Yes
mysql -S /data/3310/mysql.sock -e "show slave status\G"|grep Yes

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