How to install and deploy MySQL

This article will introduce to you how to install and deploy MySQL. It has certain reference value. Friends in need can refer to it. I hope it will be helpful to everyone.

MySQL installation and deployment

1. Binary installation

1. Clear residual software

rpm -qa|grep mariadb
yum remove mariadb-libs -y
rm -rf /etc/my.cnf

2. Download software Package installation dependencies

wget https://downloads.mysql.com/archives/get/p/23/file/mysql-5.7.28-linux-glibc2.12-x86_64.tar.gz
yum install -y libaio-devel

3. Unzip to the specified directory

tar zxf mysql-5.7.28-linux-glibc2.12-x86_64.tar.gz -C /opt/
mv /opt/mysql-5.7.28-linux-glibc2.12-x86_64 /opt/mysql-5.7.28

4. Create a soft link

ln -s /opt/mysql-5.7.28 /opt/mysql

5. Configure environment variables

echo 'export PATH=$PATH:/opt/mysql/bin' >>/etc/profile
source /etc/profile
mysql -V

6. Write Configuration file

ccat> /etc/my.cnf <<EOF
[mysqld]
port=3306
user=mysql
basedir=/opt/mysql
datadir=/data/mysql_3306
socket=/tmp/mysql_3306.sock

[mysql]
socket=/tmp/mysql_3306.sock
EOF

7. Create data directory

mkdir -p /data/mysql_3306

8. Create mysql user

useradd -s /sbin/nologin -M mysql

9. Authorize the software directory and data directory to mysql

chown -R mysql:mysql /data/
chown -R mysql:mysql /opt/mysql*

10. Initialize the database directory

mysqld --initialize-insecure --user=mysql --basedir=/opt/mysql --datadir=/data/mysql_3306/

11. Copy the startup file and configure systemctl

cp /opt/mysql/support-files/mysql.server /etc/init.d/mysqld
chkconfig --add mysqld
systemctl start mysqld

12. Check

netstat -lntup|grep 3306
mysql

2. Multi-instance installation configuration

1 .Create a multi-instance data directory

mkdir -p /data/mysql_330{7,8}
chown -R mysql:mysql /data/mysql_330*

2.Initialize the database directory

mysqld --initialize-insecure --user=mysql --basedir=/opt/mysql --datadir=/data/mysql_3307/
mysqld --initialize-insecure --user=mysql --basedir=/opt/mysql --datadir=/data/mysql_3308/

3.Create a multi-instance configuration file

cat >/data/mysql_3307/my.cnf <<EOF
[mysqld]
port=3307
user=mysql
basedir=/opt/mysql
datadir=/data/mysql_3307
socket=/tmp/mysql_3307.sock

[mysql]
socket=/tmp/mysql_3307.sock
EOF

cat >/data/mysql_3308/my.cnf <<EOF
[mysqld]
port=3308
user=mysql
basedir=/opt/mysql
datadir=/data/mysql_3308
socket=/tmp/mysql_3308.sock

[mysql]
socket=/tmp/mysql_3308.sock
EOF

4.Configure the startup file

cat >/etc/systemd/system/mysqld_3307.service <<EOF
[Unit]
Description=MySQL Server
Documentation=man:mysqld(8)
Documentation=http://dev.mysql.com/doc/refman/en/using-systemd.html
After=network.target
After=syslog.target
[Install]
WantedBy=multi-user.target
[Service]
User=mysql
Group=mysql
ExecStart=/opt/mysql/bin/mysqld --defaults-file=/data/mysql_3307/my.cnf
LimitNOFILE = 5000
EOF

cat >/etc/systemd/system/mysqld_3308.service <<EOF
[Unit]
Description=MySQL Server
Documentation=man:mysqld(8)
Documentation=http://dev.mysql.com/doc/refman/en/using-systemd.html
After=network.target
After=syslog.target
[Install]
WantedBy=multi-user.target
[Service]
User=mysql
Group=mysql
ExecStart=/opt/mysql/bin/mysqld --defaults-file=/data/mysql_3308/my.cnf
LimitNOFILE = 5000
EOF

5. Reload and restart

systemctl daemon-reload
systemctl start mysqld_3307.service mysqld_3308.service

6. Check whether the multi-instance is started successfully. Check the port

netstat -lntup|grep 330*

7. Configure the password

mysqladmin password -S /tmp/mysql_3307.sock
mysqladmin password -S /tmp/mysql_3308.sock

8. Log in to the multi-instance

mysql -S /tmp/mysql_3307.sock -p
mysql -S /tmp/mysql_3308.sock -p

Related recommendations: "mysql tutorial"

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