mariadb do separate read and write

Verbatim large column  https://www.dazhuanlan.com/2019/08/26/5d6335b52c369/

The last time I installed mariadb article on centos7 and turn the master-slave replication mode, which intends to use a separate read and write do mycat

mycat can now be commensurate like nginx as a reverse proxy, he may not be exposed ip database

surroundings:

IP addresses	effect
192.168.3.137	mycat server, the primary database
192.168.3.136	From the database

Installation mycat

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• Open mycat official website , select the version to download, I have here is 1.6.6

• The package tar extract to the centos / usr / local / lower

添加环境变量
vi /etc/profile
export MYCAT_HOME=/usr/local/mycat
# 退出
source /etc/profile #使之生效
cd /usr/local/mycat/bin
./mycat start #启动
./mycat status #查看是否启动

Usually no problem

Configuration Environment

First, back up what two important documents, if broke can also restore

cd /usr/local/mycat/conf
cp ./server.xml ./server.xml.bak
cp ./schema.xml ./schema.xml.bak

Configuring user for remote login server.xml

vi /usr/local/conf/server.xml 

Pulled Finally, modify the inside of the user on the line

Configuration table needs to be managed schema.xml

Test Connection

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Restart the mycat, check whether state run

./mycat restart
./mycat status

Navicat open on the window select the connection must be noted here mysql or will be error

Trading success!