Mysql 5.7.21 Single-machine multi-instance installation

2. Download MySQL 5.7 Two package
   [[email protected] ~]# wget https://dev.mysql.com/get/Downloads/MySQL-5.7/mysql-5.7.21-linux-glibc2.5-x86_64.tar.gz

4. Unzip the MySQL 5.7 binary package to the specified directory
   [[email protected] ~]# tar zxvf mysql-5.7.21-linux-glibc2.5-x86_64.tar.gz -C /usr/local/

6. Create a MySQL soft link
   [[email protected] ~]# ln -s /usr/local/mysql-5.7.21-linux-glibc2.5-x86_64 /usr/local/mysql

8. Create a MySQL user
   [[email protected] ~]# useradd -r -s /sbin/nologin mysql

10. Create the Mysql-files directory in the MySQL binary package directory [MySQL data import/Export data exclusive directory]

    [[email protected] ~]# mkdir -v /usr/local/mysql/mysql-files mkdir: created directory `/usr/local/mysql/mysql-files‘

12. Create a multi-instance data Catalog

    [[email protected] ~]# mkdir -vp /data/mysql_data{1..4} mkdir: created directory `/data‘ mkdir: created directory `/data/mysql_data1‘ mkdir: created directory `/data/mysql_data2‘ mkdir: created directory `/data/mysql_data3‘ mkdir: created directory `/data/mysql_data4‘

14. To modify the user and owning group of the MySQL binary package directory
    [[email protected] ~]# chown root.mysql -R /usr/local/mysql-5.7.21-linux-glibc2.5-x86_64

16. Modify MySQL Multi-instance data directory with data import/export exclusive directory for the owning user and owning group
    [[email protected] ~]# chown mysql.mysql -R /usr/local/mysql/mysql-files /data/mysql_data{1..4}

17. Configuring the MySQL configuration file/etc/my.cnf

    [Mysqld_multi] mysqld =/usr/local/mysql/bin/mysqld mysqladmin =/usr/local/mysql/bin/mysqladminlog =/tmp/mysq L_multi.log [Mysqld1] # Set Data directory [must be different in multiple instances] DataDir =/data/mysql_data1# Settings sock store file name [must be different in multiple instances] socket =/tmp/mysql.sock1 # Set listening open port [must be different in multiple instances] port = 3306 # set Run user = MySQL # turn off monitoring performance_schema = off # set InnoDB cache size Innodb_buffer_poo L_size = 32M # Set Listener IP Address bind_address = 0.0.0.0 # Turn off DNS reverse Resolution skip-name-resolve = 0 [mysqld2] datadir =/data/mysql_data2soc Ket =/tmp/mysql.sock2 Port = 3307 user = MySQL Performance_schema = off innodb_buffer_pool_size = 32M bind_address = 0.0. 0.0 skip-name-resolve = 0 [mysqld3] datadir =/data/mysql_data3socket =/tmp/mysql.sock3 Port = 3308 user = MySQL perfor Mance_schema = off innodb_buffer_pool_size = 32M bind_address = 0.0.0.0 skip-name-resolve = 0 [mysqld4] datadir =/data/my Sql_data4socket =/tmp/mysql.sock4 Port = 3309 user = MySQL Performance_schema = off innodb_buffer_pool_size = 32M Bind_ad Dress = 0.0.0.0 Skip-namE-resolve = 0 

19. Initializes each instance [the initialization completes with a random password in the output log]

      [[email protected] ~]#/usr/local/mysql/bin/mysqld-- Initialize--user=mysql--basedir=/usr/local/mysql--datadir=/data/mysql_data1 [[email protected] ~]#/usr/ Local/mysql/bin/mysqld--initialize--user=mysql--basedir=/usr/local/mysql--datadir=/data/mysql_data2 [[Email  protected] ~]#/usr/local/mysql/bin/mysqld--initialize--user=mysql--basedir=/usr/local/mysql--datadir=/ DATA/MYSQL_DATA3 [[email protected] ~]#/usr/local/mysql/bin/mysqld--initialize--user=mysql--basedir=/usr/ Local/mysql--datadir=/data/mysql_data4  

21. Each instance turns on SSL connection

    [[email protected] ~]# /usr/local/mysql/bin/mysql_ssl_rsa_setup --user=mysql --basedir=/usr/local/mysql --datadir=/data/mysql_data1 [[email protected] ~]# /usr/local/mysql/bin/mysql_ssl_rsa_setup --user=mysql --basedir=/usr/local/mysql --datadir=/data/mysql_data2 [[email protected] ~]# /usr/local/mysql/bin/mysql_ssl_rsa_setup --user=mysql --basedir=/usr/local/mysql --datadir=/data/mysql_data3 [[email protected] ~]# /usr/local/mysql/bin/mysql_ssl_rsa_setup --user=mysql --basedir=/usr/local/mysql --datadir=/data/mysql_data4

23. Copy the multi-instance script to the service Management directory [/etc/init.d/]
    [[email protected] ~]# cp /usr/local/mysql/support-files/mysqld_multi.server /etc/init.d/mysqld_multi

25. Add Script Execution permissions
    [[email protected] ~]# chmod +x /etc/init.d/mysqld_multi

27. Add in service Management
    [[email protected] ~]# chkconfig --add mysqld_multi

29. Start test

• Check for multiple instance status

  [[email protected] ~]# /etc/init.d/mysqld_multi report Reporting MySQL servers MySQL server from group: mysqld1 is not running MySQL server from group: mysqld2 is not running MySQL server from group: mysqld3 is not running MySQL server from group: mysqld4 is not running

• Start Multi-instance
  [[email protected] ~]# /etc/init.d/mysqld_multi start

• View multi-instance status

  Reporting MySQL servers MySQL server from group: mysqld1 is running MySQL server from group: mysqld2 is running MySQL server from group: mysqld3 is running MySQL server from group: mysqld4 is running

• viewing instance listening ports

  [[email protected] ~]# netstat -lntp | grep mysqld tcp        0      0 0.0.0.0:3306        0.0.0.0:*                LISTEN      2673/mysqld        tcp        0      0 0.0.0.0:3307        0.0.0.0:*                LISTEN      2676/mysqld        tcp        0      0 0.0.0.0:3308        0.0.0.0:*                LISTEN      2679/mysqld        tcp        0      0 0.0.0.0:3309        0.0.0.0:*                LISTEN      2682/mysqld

1. Connection test

• Instance 1

    [[email protected] ~]#/usr/local/mysql/bin/mysql-s/tmp/mysql.sock1-p ' z+ilo*>s : 3kw ' mysql: [Warning] Using a password on the command line interface can is insecure.  Welcome to the MySQL Monitor. Commands End With; or \g. Your MySQL Connection ID is 6 Server version:5.7.18 Copyright (c) $, Oracle and/or its affiliates. All rights reserved. Oracle is a registered trademark of the Oracle Corporation and/or its affiliates. Other names trademarks of their respective owners. Type ' help ', ' or ' \h ' for help. Type ' \c ' to clear the current input statement. mysql> Set password = ' 123456 '; Query OK, 0 rows Affected (0.00 sec)  

• Example 2

  [[email protected] ~]# /usr/local/mysql/bin/mysql -S /tmp/mysql.sock2  -p‘b*AHUrTgu1rl‘ mysql: [Warning] Using a password on the command line interface can be insecure. Welcome to the MySQL monitor.  Commands end with ; or \g. Your MySQL connection id is 7 Server version: 5.7.18 Copyright (c) 2000, 2017, Oracle and/or its affiliates. All rights reserved. Oracle is a registered trademark of Oracle Corporation and/or its affiliates. Other names may be trademarks of their respective owners. Type ‘help;‘ or ‘\h‘ for help. Type ‘\c‘ to clear the current input statement. mysql> set password = ‘123456‘; Query OK, 0 rows affected (0.00 sec)

  Original link: https://www.linuxidc.com/Linux/2017-07/145343.htm

Mysql 5.7.21 Single-machine multi-instance installation