CentOS7多实例安装mysq5.6二进制版本

1丶下载mysql,解压,创建用户,创建软链接

test -d /tools || mkdir /tools ;cd /tools
wget http://mirrors.sohu.com/mysql/MySQL-5.6/mysql-5.6.35-linux-glibc2.5-x86_64.tar.gz
useradd  -s /sbin/nologin -M mysql
tar xf mysql-5.6.35-linux-glibc2.5-x86_64.tar.gz -C /usr/local
ln -sv /usr/local/mysql-5.6.35-linux-glibc2.5-x86_64 /usr/local/mysql

2丶创建目录以及授权

mkdir /data/{3306,3307,3308}/{data,log,tmp} -pv
chown -R mysql.mysql /data

3丶添加环境变量

echo 'export PATH=$PATH:/usr/local/mysql/bin' >>  /etc/profile
export PATH=$PATH:/usr/local/mysql/bin

4丶创建my.cnf文件

#vim /etc/my.cnf
[client]
port=3306
socket=/tmp/mysql.sock
[mysqld_multi]
mysqld = /usr/local/mysql/bin/mysqld_safe
mysqladmin = /usr/local/mysql/bin/mysqladmin
log = /data/mysqld_multi.log
[mysqld]
user=mysql
basedir = /usr/local/mysql
sql_mode=NO_ENGINE_SUBSTITUTION,STRICT_TRANS_TABLES
[mysqld3306]
mysqld=mysqld
mysqladmin=mysqladmin
datadir=/data/3306/data
port=3306
server_id=3306
socket=/tmp/mysql_3306.sock
log-output=file
slow_query_log = 1
long_query_time = 1
slow_query_log_file = /data/3306/log/slow.log
log-error = /data/3306/log/error.log
binlog_format = mixed
log-bin = /data/3306/log/mysql3306_bin
character-set-server=utf8
[mysqld3307]
mysqld=mysqld
mysqladmin=mysqladmin
datadir=/data/3307/data
port=3307
server_id=3307
socket=/tmp/mysql_3307.sock
log-output=file
slow_query_log = 1
long_query_time = 1
slow_query_log_file = /data/3307/log/slow.log
log-error = /data/3307/log/error.log
binlog_format = mixed
log-bin = /data/3307/log/mysql3307_bin
character-set-server=utf8
[mysqld3308]
mysqld=mysqld
mysqladmin=mysqladmin
datadir=/data/3308/data
port=3308
server_id=3308
socket=/tmp/mysql_3308.sock
log-output=file
slow_query_log = 1
long_query_time = 1
slow_query_log_file = /data/3308/log/slow.log
log-error = /data/3308/log/error.log
#binlog_format = mixed
#log-bin = /data/3308/log/mysql3308_bin
character-set-server=utf8

5丶初始化mysql

/usr/local/mysql/scripts/mysql_install_db --user=mysql --basedir=/usr/local/mysql --datadir=/data/3306/data --defaults-file=/etc/my.cnf
/usr/local/mysql/scripts/mysql_install_db --user=mysql --basedir=/usr/local/mysql --datadir=/data/3307/data --defaults-file=/etc/my.cnf
/usr/local/mysql/scripts/mysql_install_db --user=mysql --basedir=/usr/local/mysql --datadir=/data/3308/data --defaults-file=/etc/my.cnf

6丶使用mysqld_multi进行多实例管理

启动全部实例：/usr/local/mysql/bin/mysqld_multi start
查看全部实例状态：/usr/local/mysql/bin/mysqld_multi report
启动单个实例：/usr/local/mysql/bin/mysqld_multi start 3306
停止单个实例：/usr/local/mysql/bin/mysqld_multi stop 3306
查看单个实例状态：/usr/local/mysql/bin/mysqld_multi report 3306

7丶修改默认密码

mysqladmin -uroot   -S /tmp/mysql_3306.sock  password 'redhat123'
mysqladmin -uroot   -S /tmp/mysql_3307.sock  password 'redhat123'
mysqladmin -uroot   -S /tmp/mysql_3308.sock  password 'redhat123'

注意：如果添加了默认密码使用mysqld_multi管理的话需要使用--password选项

/usr/local/mysql/bin/mysqld_multi start 3306  --password=redhat

8丶安装报错

报错1:FATAL ERROR: please install the following Perl modules before executing /usr/local/mysql/scripts/mysql_install_db

yum install -y perl-Module-Install.noarch