安装mysql5.5.62版本并指定用户运行

自行安装支持组件
创建mysql用户

groupadd mysql
useradd -s /sbin/nologin -g mysql mysql

下载并编译安装mysql5.5.62

wget http://source.loshub.com/linux/mysql/mysql-5.5.62.tar.gz
tar zxf mysql-5.5.62.tar.gz
cd mysql-5.5.62
cmake -DCMAKE_INSTALL_PREFIX=/usr/local/mysql -DMYSQL_DATADIR=/home/mysql/data -DMYSQL_UNIX_ADDR=/tmp/mysql.sock -DDEFAULT_CHARSET=utf8 -DDEFAULT_COLLATION=utf8_unicode_ci -DWITH_READLINE=1 -DWITH_EMBEDDED_SERVER=1 -DENABLED_LOCAL_INFILE=1 -DDEFAULT_COLLATION=utf8_general_ci -DWITH_MYISAM_STORAGE_ENGINE=1 -DWITH_INNOBASE_STORAGE_ENGINE=1 -DWITH_DEBUG=0 -DMYSQL_TCP_PORT=3306 -DMYSQL_USER=mysql
make&&make install

创建文件夹并给权

mkdir -p /home/mysql/data
chown -R mysql:mysql /usr/local/mysql
chown -R mysql:mysql /home/mysql

创建/etc/my.cnf文件，并录入以下代码

[client]
port = 3306
socket = /tmp/mysql.sock
[mysqld]
port = 3306
socket = /tmp/mysql.sock
basedir = /usr/local/mysql
datadir = /home/mysql/data
pid-file = /home/mysql/data/mysql.pid
log-error = /home/mysql/error.log
user = mysql
skip-external-locking
key_buffer_size = 16M
max_allowed_packet = 1M
table_open_cache = 64
sort_buffer_size = 512K
net_buffer_length = 8K
read_buffer_size = 256K
read_rnd_buffer_size = 512K
myisam_sort_buffer_size = 8M
thread_cache_size = 8
query_cache_size = 8M
tmp_table_size = 16M
table_open_cache = 64
explicit_defaults_for_timestamp = true
max_connections = 500
max_connect_errors = 100
open_files_limit = 65535
log-bin=mysql-bin
binlog_format=mixed
server-id = 1
expire_logs_days = 10
default_storage_engine = InnoDB
[mysqldump]
quick
max_allowed_packet = 16M
[mysql]
no-auto-rehash
[myisamchk]
key_buffer_size = 20M
sort_buffer_size = 20M
read_buffer = 2M
write_buffer = 2M
[mysqlhotcopy]
interactive-timeout

初始化并创建软连

/usr/local/mysql/scripts/mysql_install_db --user=mysql --defaults-file=/etc/my.cnf --basedir=/usr/local/mysql --datadir=/home/mysql/data;
chmod 775 /usr/local/mysql/support-files/mysql.server;
/usr/local/mysql/support-files/mysql.server start;
ln -s /usr/local/mysql/bin/mysql /usr/bin/mysql;
ln -s /usr/local/mysql/bin/mysqladmin /usr/bin/mysqladmin;
ln -s /usr/local/mysql/bin/mysqldump /usr/bin/mysqldump;
ln -s /usr/local/mysql/bin/myisamchk /usr/bin/myisamchk;
ln -s /usr/local/mysql/bin/mysqld_safe /usr/bin/mysqld_safe;

创建系统启动文件/lib/systemd/system/mysql.service

并录入以下内容

[Unit]
Description=mysql server Service
After=syslog.target network.target
[Service]
Type=forking
ExecStart=/usr/local/mysql/support-files/mysql.server start
ExecReload=/usr/local/mysql/support-files/mysql.server restart
ExecStop=/usr/local/mysql/support-files/mysql.server stop
[Install]
WantedBy=multi-user.target

创建软连并设置系统启动

ln -s /lib/systemd/system/mysql.service /etc/systemd/system/multi-user.target.wants/mysql;
systemctl daemon-reload;
systemctl enable mysql;
rm -rf /usr/local/mysql/data/test;

设置root密码

mysqladmin -u root password 密码

完成