MyCAT基础架构准备

节点主从规划

箭头指向谁是主库

    10.0.0.12:3307    <----->  10.0.0.13:3307(主主复制)
    10.0.0.12:3309    ------>  10.0.0.12:3307(主从复制)
    10.0.0.13:3309    ------>  10.0.0.13:3307(主从复制)
	
	

    10.0.0.13:3308  <----->    10.0.0.13:3308 (主主复制)   
    10.0.0.13:3310  ----->     10.0.0.52:3308 (主从复制)
    10.0.0.12:3310  ----->     10.0.0.13:3308 (主从复制)

分片规划

shard1：
    Master：10.0.0.12:3307
    slave1：10.0.0.12:3309
    Standby Master：10.0.0.13:3307
    slave2：10.0.0.13:3309
shard2：
    Master：10.0.0.13:3308
    slave1：10.0.0.13:3310
    Standby Master：10.0.0.12:3308
    slave2：10.0.0.12:3310	

开始配置

第一组四节点结构

# 10.0.0.12:3307 <-----> 10.0.0.13:3307

## db03:
mysql  -S /data/3307/mysql.sock -e "grant replication slave on *.* to repl@'10.0.0.%' identified by '123';"
mysql  -S /data/3307/mysql.sock -e "grant all  on *.* to root@'10.0.0.%' identified by '123'  with grant option;"

## db02:
mysql  -S /data/3307/mysql.sock -e "CHANGE MASTER TO MASTER_HOST='10.0.0.13', 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 statusG"

## db03:
mysql  -S /data/3307/mysql.sock -e "CHANGE MASTER TO MASTER_HOST='10.0.0.12', 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 statusG"
=======================

# 10.0.0.12:3309 ------> 10.0.0.12:3307
## db02:
mysql  -S /data/3309/mysql.sock  -e "CHANGE MASTER TO MASTER_HOST='10.0.0.12', 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 statusG"

# 10.0.0.13:3309 ------> 10.0.0.13:3307
## db03:
mysql  -S /data/3309/mysql.sock -e "CHANGE MASTER TO MASTER_HOST='10.0.0.13', 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 statusG"

第二组四节点

#10.0.0.13:3308 <-----> 10.0.0.12:3308
## db02:
mysql  -S /data/3308/mysql.sock -e "grant replication slave on *.* to repl@'10.0.0.%' identified by '123';"
mysql  -S /data/3308/mysql.sock -e "grant all  on *.* to root@'10.0.0.%' identified by '123'  with grant option;"

## db03:
mysql  -S /data/3308/mysql.sock -e "CHANGE MASTER TO MASTER_HOST='10.0.0.12', 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 statusG"

## db02:
mysql  -S /data/3308/mysql.sock -e "CHANGE MASTER TO MASTER_HOST='10.0.0.13', 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 statusG"


# 10.0.0.13:3310 -----> 10.0.0.13:3308

## db03:
mysql  -S /data/33010/mysql.sock -e "CHANGE MASTER TO MASTER_HOST='10.0.0.13', MASTER_PORT=3308, MASTER_AUTO_POSITION=1, MASTER_USER='repl', MASTER_PASSWORD='123';"
mysql  -S /data/33010/mysql.sock -e "start slave;"
mysql  -S /data/33010/mysql.sock -e "show slave statusG"

# 10.0.0.12:3310 -----> 10.0.0.12:3308
## db02:
mysql  -S /data/33010/mysql.sock -e "CHANGE MASTER TO MASTER_HOST='10.0.0.12', MASTER_PORT=3308, MASTER_AUTO_POSITION=1, MASTER_USER='repl', MASTER_PASSWORD='123';"
mysql  -S /data/33010/mysql.sock -e "start slave;"
mysql  -S /data/33010/mysql.sock -e "show slave statusG"

检测主从状态

[root@db03 ~]# for i in {7..10};do mysql -S /data/330${i}/mysql.sock -e "show slave statusG"|grep Yes;done
             Slave_IO_Running: Yes
            Slave_SQL_Running: Yes
             Slave_IO_Running: Yes
            Slave_SQL_Running: Yes
             Slave_IO_Running: Yes
            Slave_SQL_Running: Yes
             Slave_IO_Running: Yes
            Slave_SQL_Running: Yes
#注：如果中间出现错误，在每个节点进行执行以下命令,从第1.9步重新开始即可
[root@db03 ~]# for i in {7..10};do mysql -S /data/330${i}/mysql.sock -e "stop slave; reset slave all;"|grep Yes;done