Detailed installation and configuration steps of mysql middleware mycat2

download

First open the official website of mycat: MyCat2

There is a file download service in the download in the upper right corner, click it and find that it cannot be accessed

Here you need to configure the host and copy the following content to the host file. The host file location is in C:\Windows\System32\drivers\etc

210.51.26.184 mycat.org.cn www.mycat.org.cn dl.mycat.org.cn

After configuration, directly visit the following two addresses to download

http://dl.mycat.org.cn/2.0/install-template/mycat2-install-template-1.20.zip

http://dl.mycat.org.cn/2.0/1.20-release/mycat2-1.20-jar-with-dependencies-2021-12-23.jar 

After downloading, these two things

 

Install

Unzip the zip package, then copy the jar package to the decompressed folder mycat\lib directory,

Upload the mycat folder to the linux server, I put it in the usr/local folder

Modify file permissions

After uploading, modify the permissions of the following four files in the mycat/bin directory to 777

After cd to the bin directory, execute the chmod command four times

chmod 777 mycat

chmod 777 wrapper-linux-x86-32

chmod 777  wrapper-linux-x86-64

chmod 777 wrapper-linux-ppc-64

configuration

Create a mycat user in the mysql to be used and grant permissions

Execute the following command in mysql

Create a user named mycat with a password of 123456

CREATE USER 'mycat'@'%' IDENTIFIED BY '123456';

Grant permission

GRANT XA_RECOVER_ADMIN ON *.* TO 'root'@'%';

GRANT ALL PRIVILEGES ON *.* TO 'mycat'@'%';

to refresh

flush privileges;

Modify the prototype configuration of mycat

Go to the mycat/conf/datasource folder in the mycat folder

Edit the prototypeDs.datasource.json file inside

Change the username, password and connection parameters to the previously created mysql service parameters (create a test database in mysql in advance)

start mycat

Enter mycat/bin and execute the following command

start up

./mycat start

stop

./mycat stop

run in the foreground

./mycat console

reboot

./mycat restart

pause

./mycat pause

View startup status

./mycat status