mysql多实例部署

软件下载

//下载二进制格式的mysql软件包
[root@localhost ~]# cd /usr/src/
[root@localhost src]# wget https://downloads.mysql.com/archives/get/file/mysql-5.7.22-linux-glibc2.12-x86_64.tar.gz
--2018-08-13 23:56:27--  https://downloads.mysql.com/archives/get/file/mysql-5.7.22-linux-glibc2.12-x86_64.tar.gz
Resolving downloads.mysql.com (downloads.mysql.com)... 137.254.60.14
Connecting to downloads.mysql.com (downloads.mysql.com)|137.254.60.14|:443... connected.
HTTP request sent, awaiting response... 302 Found
Location: https://cdn.mysql.com/archives/mysql-5.7/mysql-5.7.22-linux-glibc2.12-x86_64.tar.gz [following]
......
Saving to: ‘mysql-5.7.22-linux-glibc2.12-x86_64.tar.gz’
    
100%[=====================================>] 643,790,848 2.46MB/s   in 4m 20s
    
2018-08-14 00:00:50 (2.36 MB/s) - ‘mysql-5.7.22-linux-glibc2.12-x86_64.tar.gz’saved [643790848/643790848]

配置用户和组并解压二进制程序至/usr/local下

//创建用户和组
[root@localhost src]# groupadd -r mysql
[root@localhost src]# useradd -M -s /sbin/nologin -g mysql mysql


//解压软件至/usr/local/
[root@localhost src]# ls
debug  kernels  mysql-5.7.22-linux-glibc2.12-x86_64.tar.gz
[root@localhost src]# tar xf mysql-5.7.22-linux-glibc2.12-x86_64.tar.gz -C /usr/local/
[root@localhost ~]# ls /usr/local/
bin  games    lib    libexec                              sbin   src
etc  include  lib64  mysql-5.7.22-linux-glibc2.12-x86_64  share
[root@localhost ~]# cd /usr/local/
[root@localhost local]# ln -sv mysql-5.7.22-linux-glibc2.12-x86_64/ mysql
‘mysql’ -> ‘mysql-5.7.22-linux-glibc2.12-x86_64/’
[root@localhost local]# ll
total 0
drwxr-xr-x. 2 root root   6 Mar 10  2016 bin
drwxr-xr-x. 2 root root   6 Mar 10  2016 etc
drwxr-xr-x. 2 root root   6 Mar 10  2016 games
drwxr-xr-x. 2 root root   6 Mar 10  2016 include
drwxr-xr-x. 2 root root   6 Mar 10  2016 lib
drwxr-xr-x. 2 root root   6 Mar 10  2016 lib64
drwxr-xr-x. 2 root root   6 Mar 10  2016 libexec
lrwxrwxrwx  1 root root  36 Aug 14 16:00 mysql -> mysql-5.7.22-linux-glibc2.12-x86_64/
drwxr-xr-x  9 root root 129 Aug 14 00:16 mysql-5.7.22-linux-glibc2.12-x86_64
drwxr-xr-x. 2 root root   6 Mar 10  2016 sbin
drwxr-xr-x. 5 root root  49 Jun 13 19:03 share
drwxr-xr-x. 2 root root   6 Mar 10  2016 src


//修改目录/usr/local/mysql的属主属组
[root@localhost ~]# chown -R mysql.mysql /usr/local/mysql
[root@localhost ~]# ll /usr/local/mysql -d
lrwxrwxrwx 1 mysql mysql 36 Aug 14 16:00 /usr/local/mysql -> mysql-5.7.22-linux-glibc2.12-x86_64/

//配置环境变量
[root@localhost ~]# echo 'export PATH=/usr/local/mysql/bin:$PATH' > /etc/profile.d/mysql.sh
[root@localhost ~]# . /etc/profile.d/mysql.sh
[root@localhost ~]# echo $PATH
/usr/local/mysql/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/root/bin

创建各实例数据存放的目录

[root@localhost ~]# mkdir -p /opt/data/{3306,3307,3308}

[root@localhost ~]# chown -R mysql.mysql /opt/data/

[root@localhost ~]# ll /opt/data/
总用量 0
drwxr-xr-x 2 mysql mysql 6 5月   9 21:24 3306
drwxr-xr-x 2 mysql mysql 6 5月   9 21:24 3307
drwxr-xr-x 2 mysql mysql 6 5月   9 21:24 3308

[root@localhost ~]# tree /opt/data/
/opt/data/
├── 3306
├── 3307
└── 3308

3 directories, 0 files

初始化各实例

//初始化3306实例
[root@localhost ~]# mysqld --initialize --datadir=/opt/data/3306 --user=mysql
2019-05-10T01:43:33.987463Z 0 [Warning] TIMESTAMP with implicit DEFAULT value is deprecated. Please use --explicit_defaults_for_timestamp server option (see documentation for more details).
2019-05-10T01:43:34.565759Z 0 [Warning] InnoDB: New log files created, LSN=45790
2019-05-10T01:43:34.733540Z 0 [Warning] InnoDB: Creating foreign key constraint system tables.
2019-05-10T01:43:34.808595Z 0 [Warning] No existing UUID has been found, so we assume that this is the first time that this server has been started. Generating a new UUID: 061b480e-72c5-11e9-ae30-000c29c0ed3b.
2019-05-10T01:43:34.810131Z 0 [Warning] Gtid table is not ready to be used. Table 'mysql.gtid_executed' cannot be opened.
2019-05-10T01:43:34.837499Z 1 [Note] A temporary password is generated for root@localhost: Y=lJV79Rkx,d
[root@localhost ~]# echo 'Y=lJV79Rkx,d' > 3306_pass


//初始化3307实例
[root@localhost ~]# mysqld --initialize --datadir=/opt/data/3307 --user=mysql
2019-05-10T01:45:41.206120Z 0 [Warning] TIMESTAMP with implicit DEFAULT value is deprecated. Please use --explicit_defaults_for_timestamp server option (see documentation for more details).
2019-05-10T01:45:42.082891Z 0 [Warning] InnoDB: New log files created, LSN=45790
2019-05-10T01:45:42.258639Z 0 [Warning] InnoDB: Creating foreign key constraint system tables.
2019-05-10T01:45:42.352269Z 0 [Warning] No existing UUID has been found, so we assume that this is the first time that this server has been started. Generating a new UUID: 5220e72b-72c5-11e9-b195-000c29c0ed3b.
2019-05-10T01:45:42.353339Z 0 [Warning] Gtid table is not ready to be used. Table 'mysql.gtid_executed' cannot be opened.
2019-05-10T01:45:42.354494Z 1 [Note] A temporary password is generated for root@localhost: bpG+yqeGN8G:
[root@localhost ~]# echo 'bpG+yqeGN8G:' > 3307_pass


//初始化3308实例
[root@localhost ~]# mysqld --initialize --datadir=/opt/data/3308 --user=mysql
2019-05-10T01:46:52.707755Z 0 [Warning] TIMESTAMP with implicit DEFAULT value is deprecated. Please use --explicit_defaults_for_timestamp server option (see documentation for more details).
2019-05-10T01:46:53.546346Z 0 [Warning] InnoDB: New log files created, LSN=45790
2019-05-10T01:46:53.732779Z 0 [Warning] InnoDB: Creating foreign key constraint system tables.
2019-05-10T01:46:53.810767Z 0 [Warning] No existing UUID has been found, so we assume that this is the first time that this server has been started. Generating a new UUID: 7cb89aad-72c5-11e9-b5a1-000c29c0ed3b.
2019-05-10T01:46:53.813509Z 0 [Warning] Gtid table is not ready to be used. Table 'mysql.gtid_executed' cannot be opened.
2019-05-10T01:46:53.815051Z 1 [Note] A temporary password is generated for root@localhost: wior7yf:1Awu
[root@localhost ~]# echo 'wior7yf:1Awu' > 3308_pass

安装perl

[root@localhost ~]# yum -y install perl

配置配置文件/etc/my.cnf

[root@localhost ~]# vim /etc/my.cnf
[mysqld_multi]
mysqld = /usr/local/mysql/bin/mysqld_safe
mysqladmin = /usr/local/mysql/bin/mysqladmin

[mysqld3306]
datadir = /opt/data/3306
port = 3306
socket = /tmp/mysql3306.sock
pid-file = /opt/data/3306/mysql_3306.pid
log-error=/var/log/3306.log

[mysqld3307]
datadir = /opt/data/3307
port = 3307
socket = /tmp/mysql3307.sock
pid-file = /opt/data/3307/mysql_3307.pid
log-error=/var/log/3307.log

[mysqld3308]
datadir = /opt/data/3308
port = 3308
socket = /tmp/mysql3308.sock
pid-file = /opt/data/3308/mysql_3308.pid
log-error=/var/log/3308.log

启动各实例

[root@localhost ~]# mysqld_multi start 3306
[root@localhost ~]# mysqld_multi start 3307
[root@localhost ~]# mysqld_multi start 3308
[root@localhost ~]# ss -antl
State      Recv-Q Send-Q     Local Address:Port                    Peer Address:Port
LISTEN     0      128                    *:22                                 *:*
LISTEN     0      100            127.0.0.1:25                                 *:*
LISTEN     0      80                    :::3307                              :::*
LISTEN     0      80                    :::3308                              :::*
LISTEN     0      128                   :::22                                :::*
LISTEN     0      100                  ::1:25                                :::*
LISTEN     0      80                    :::3306                              :::*

初始化密码

[root@localhost ~]# ls
3306_pass  3307_pass  3308_pass  anaconda-ks.cfg
[root@localhost ~]# cat 3306_pass
Y=lJV79Rkx,d
[root@localhost ~]# mysql -uroot -p'Y=lJV79Rkx,d' -S /tmp/mysql3306.sock
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 3
Server version: 5.7.22

Copyright (c) 2000, 2018, 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 = password('wangqing123!');
Query OK, 0 rows affected, 1 warning (0.01 sec)

mysql> quit
Bye



[root@localhost ~]# cat 3307_pass
bpG+yqeGN8G:
[root@localhost ~]# mysql -uroot -p'bpG+yqeGN8G:' -S /tmp/mysql3307.sock -e 'set password = password("wangqing123!");' --connect-expired-password
mysql: [Warning] Using a password on the command line interface can be insecure.


[root@localhost ~]# cat 3308_pass
wior7yf:1Awu
[root@localhost ~]# mysql -uroot -p'wior7yf:1Awu' -S /tmp/mysql3308.sock -e 'set password = password("wangqing123!");' --connect-expired-password
mysql: [Warning] Using a password on the command line interface can be insecure.