Mysql多實例安裝

參考文檔:https://www.cnblogs.com/xuchenliang/p/6843990.html

1.部署環境：Centos6.9，Mysql5.6

2.解壓遷移

mkdir /usr/local/mysql

tar -xvf mysql-5.6.21-linux-glibc2.5-x86_64.tar.gz

mv mysql-5.6.21-linux-glibc2.5-x86_64/* /usr/local/mysql

3.環境設置

關閉iptables

臨時關閉：service iptables stop 

永久關閉：chkconfig iptables off

關閉selinux

vi /etc/sysconfig/selinux  

將SELINUX修改成DISABLED，即SELINUX=DISABLED 

建立mysql用戶

groupadd mysql

useradd -g mysql mysql

檢查：id mysql

建立相關目錄

mkdir -p /data/ {3306,3307}

mkdir /data/mysql/mysql_3306/ {data,log,tmp}

mkdir /data/mysql/mysql_3307/ {data,log,tmp}

檢查：tree /data/

更改目錄權限

chown -R mysql:mysql /data/mysql/ 

chown -R mysql:mysql /usr/local/mysql/

檢查：

ll /data/mysql

ll /usr/local/mysql/

 添加環境變量

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

source /etc/profile  

檢查：cat /etc/profile

 

4. 複製my.cnf文件到etc目錄 and 修改my.cnf

cp /usr/local/mysql/support-files/my-default.cnf /etc/my.cnf

vim /etc/my.cnf

文本以下：

[client]  

port=3306  

socket=/tmp/mysql.sock  

 

[mysqld_multi]  

mysqld = /usr/local/mysql /bin/mysqld_safe  

mysqladmin = /usr/local/mysql /bin/mysqladmin  

log = /data/mysql/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/mysql/mysql_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/mysql/mysql_3306/log/slow.log  

log-error = /data/mysql/mysql_3306/log/error.log  

binlog_format = mixed  

log-bin = /data/mysql/mysql_3306/log/mysql3306_bin  

   

[mysqld3307]  

mysqld=mysqld  

mysqladmin=mysqladmin  

datadir=/data/mysql/mysql_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/mysql/mysql_3307/log/slow.log  

log-error = /data/mysql/mysql_3307/log/error.log  

binlog_format = mixed  

log-bin = /data/mysql/mysql_3307/log/mysql3307_bin

 

5.分別初始化3306，3307數據庫

cp /usr/local/mysql/support-files/mysql.server /etc/init.d/mysql

1./usr/local/mysql/scripts/mysql_install_db --basedir=/usr/local/mysql/ --datadir=/data/mysql/mysql_3306/data --defaults-file=/etc/my.cnf  

2./usr/local/mysql/scripts/mysql_install_db --basedir=/usr/local/mysql/ --datadir=/data/mysql/mysql_3307/data --defaults-file=/etc/my.cnf 

 

檢查數據庫是否初始化成功

方法一：

方法二： ll /data/mysql/mysql_3307/data

6.設置啓動文件

cp /usr/local/mysql/support-files/mysql.server /etc/init.d/mysql

6.1.mysqld_multi進行多實例管理

啓動所有實例：/usr/local/mysql/bin/mysqld_multi start

查看所有實例狀態：/usr/local/mysql/bin/mysqld_multi report 

啓動單個實例：/usr/local/mysql/bin/mysqld_multi start 3306 

中止單個實例：/usr/local/mysql/bin/mysqld_multi stop 3306 

查看單個實例狀態：/usr/local/mysql/bin/mysqld_multi report 3306 

6.2.啓動所有實例

[root @mysql ~]# /usr/local/mysql/bin/mysqld_multi start

[root @mysql ~]# /usr/local/mysql/bin/mysqld_multi report

Reporting MySQL servers

MySQL server from group: mysqld3306 is running

MySQL server from group: mysqld3307 is running

檢查：netstat -tlnap|grep mysql

mysql的root用戶初始密碼是空，因此須要登陸mysql進行修改密碼，下面以3306爲例： 

mysql -S /tmp/mysql_3306.sock   

set password for root@'localhost'=password('123456'); 

flush privileges; 

下次登陸：

[root @mysql ~]# mysql -S /tmp/mysql_3306.sock -p

Enter password:

 

7.測試鏈接：新建用戶及受權

通常新建數據庫都須要新增一個用戶，用於程序鏈接，這類用戶只須要insert、update、delete、select權限。

新增一個用戶，並受權以下： 

grant select,delete,update,insert on *.* to admin@'192.168.**.**' identified by '123456'; 

flush privileges

使用Navicat for mysql登錄

 

源碼安裝常見報錯信息

1：安裝mysql報錯

checking for tgetent in -lncurses... no

checking for tgetent in -lcurses... no

checking for tgetent in -ltermcap... no

checking for tgetent in -ltinfo... no

checking for termcap functions library... configure: error: No curses/termcap library found

緣由：

缺乏ncurses安裝包

解決方法：

yum list|grep ncurses

yum -y install ncurses-devel

yum install ncurses-devel

2：.../depcomp: line 571: exec: g++: not found

make[1]: *** [my_new.o] 錯誤 127

make[1]: Leaving directory `/home/justme/software/mysql-5.1.30/mysys'

make: *** [all-recursive] 錯誤 1

解決方法：

yum install gcc-c++

3：.../include/my_global.h:909: error: redeclaration of C++ built-in type `bool'

make[2]: *** [my_new.o] Error 1

make[2]: Leaving directory `/home/tools/mysql-5.0.22/mysys'

make[1]: *** [all-recursive] Error 1

make[1]: Leaving directory `/home/tools/mysql-5.0.22'

make: *** [all] Error 2

是由於gcc-c++是在configure以後安裝的，此時只需從新configure後再編譯make便可。

4：初始化數據庫報錯

報錯現象：

root @mysql mysql-6.0.11-alpha]# scripts/mysql_install_db --basedir=/usr/local/mysql/ --user=mysql

Installing MySQL system tables...

ERROR: 1136  Column count doesn't match value count at row 1

150414  7:15:56 [ERROR] Aborting

150414  7:15:56 [Warning] Forcing shutdown of 1 plugins

150414  7:15:56 [Note] /usr/local/mysql//libexec/mysqld: Shutdown complete

Installation of system tables failed!  Examine the logs in

/var/lib/mysql for more information.

You can try to start the mysqld daemon with:

shell> /usr/local/mysql//libexec/mysqld --skip-grant &

and use the command line tool /usr/local/mysql//bin/mysql

to connect to the mysql database and look at the grant tables:

shell> /usr/local/mysql//bin/mysql -u root mysql

mysql> show tables

Try 'mysqld --help' if you have problems with paths.  Using --log

gives you a log in /var/lib/mysql that may be helpful.

The latest information about MySQL is available on the web at

http://www.mysql.com/.  Please consult the MySQL manual section

'Problems running mysql_install_db', and the manual section that

describes problems on your OS.  Another information source are the

MySQL email archives available at http://lists.mysql.com/.

Please check all of the above before mailing us!  And remember, if

you do mail us, you MUST use the /usr/local/mysql//scripts/mysqlbug script!

緣由：

原有安裝的mysql信息沒有刪除乾淨

解決方法：

刪除/var/lib/mysql目錄