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This article will explain in detail how to install multiple instances of mysql5.7. The editor thinks it is very practical, so I share it with you for reference. I hope you can get something after reading this article.

1. Multi-instance installation scenario

(1)。 The pressure of a server is relatively small, and an instance cannot make full use of the performance of the server.

(2)。 Some servers perform better.

3306 mysql1

3307 mysql2

two。 Install multiple instances

(1)。 Modify the configuration file

# cp / etc/my.cnf / etc/my3307.cnf

(2)。 Create the data directory and log directory of mysql3307

Mkdir-p / home/mysql3307/mysql3307

Mkdir-p / home/mysql3307/logs

(3)。 Modify directory permissions

Chown mysql:mysql-R / home/mysql3307

(4)。 Initialize mysql3307

/ usr/local/mysql/bin/mysqld-defaults-file=/etc/my3307.cnf-initialize-insecure-basedir=/usr/local/mysql-datadir=/home/mysql3307/mysql3307-user=mysql

(5)。 Start mysql3307

/ usr/local/mysql/bin/mysqld_safe-defaults-file=/etc/my3307.cnf-user=mysql &

Click (here) to collapse or open

Mysql > show databases

ERROR 1820 (HY000): You must reset your password using ALTER USER statement before executing this statement.

Mysql > set password=password ('root')

->

Query OK, 0 rows affected, 1 warning (0.00 sec)

Mysql > flush privileges

Query OK, 0 rows affected (0.02 sec)

This is the end of the article on "how to install multiple instances of mysql5.7". I hope the above content can be of some help to you, so that you can learn more knowledge. if you think the article is good, please share it for more people to see.

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