Source code installation mysql-5.6.30 and mysql maintenance_PHP tutorial

Source code installation mysql-5.6.30 and mysql maintenance

Overview:

The MySQL installed through yum under CentOS 6.4 is version 5.1, which is relatively old, so I just want to install the higher version 5.6.30 through the source code.

Text:

1: Uninstall the old version

Use the following command to check whether MySQL Server is installed

rpm -qa | grep mysql

If yes, use the following command Command to uninstall

rpm -e mysql   //普通删除模式rpm -e --nodeps mysql    // 强力删除模式，如果使用上面命令删除时，提示有依赖的其它文件，则用该命令可以对其进行强力删除

2: Install MySQL

Install the packages needed to compile the code

yum -y install make gcc-c++ cmake bison-devel  ncurses-devel

Download MySQL 5.6.14

wget http://cdn.mysql.com/Downloads/MySQL-5.6/mysql-5.6.30.tar.gztar xvf mysql-5.6.14.tar.gzcd mysql-5.6.14

Compile and install

cmake \-DCMAKE_INSTALL_PREFIX=/usr/local/mysql \-DMYSQL_DATADIR=/usr/local/mysql/data \-DSYSCONFDIR=/etc \-DWITH_MYISAM_STORAGE_ENGINE=1 \-DWITH_INNOBASE_STORAGE_ENGINE=1 \-DWITH_MEMORY_STORAGE_ENGINE=1 \-DWITH_READLINE=1 \-DMYSQL_UNIX_ADDR=/var/lib/mysql/mysql.sock \-DMYSQL_TCP_PORT=3306 \-DENABLED_LOCAL_INFILE=1 \-DWITH_PARTITION_STORAGE_ENGINE=1 \-DEXTRA_CHARSETS=all \-DDEFAULT_CHARSET=utf8 \-DDEFAULT_COLLATION=utf8_general_cimake && make install

For compilation parameters, please refer to http://dev.mysql.com/doc/refman/5.5/en/source-configuration-options.html.

The whole process takes about 30 minutes...a long wait

Three: Configure MySQL

Set permissions

Use the following command to check if there is a mysql user and user group

cat /etc/passwd 查看用户列表cat /etc/group  查看用户组列表

Create if there is none

groupadd mysqluseradd -g mysql mysql

Modify /usr/local/mysql permissions

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

Modify /usr/local/mysql permissions

Initial configuration

Enter the installation path

cd /usr/local/mysql

Enter the installation path, execute the initialization configuration script, and create the database and tables that come with the system

scripts/mysql_install_db --basedir=/usr/local/mysql --datadir=/usr/local/mysql/data --user=mysql

Note: When starting the MySQL service, my.cnf will be searched in a certain order, first in the /etc directory, if not found, it will search for "$basedir/my.cnf", in this case /usr/ local/mysql/my.cnf, this is the default location of the configuration file of the new version of MySQL!

注意：在CentOS 6.4版操作系统的最小安装完成后，在/etc目录下会存在一个my.cnf，需要将此文件更名为其他的名字，如：/etc/my.cnf.bak，否则，该文件会干扰源码安装的MySQL的正确配置，造成无法启动。

在使用"yum update"更新系统后，需要检查下/etc目录下是否会多出一个my.cnf，如果多出，将它重命名成别的。否则，MySQL将使用这个配置文件启动，可能造成无法正常启动等问题。

启动MySQL

添加服务，拷贝服务脚本到init.d目录，并设置开机启动

cp support-files/mysql.server /etc/init.d/mysqlchkconfig mysql onservice mysql start  --启动MySQL

配置用户

MySQL启动成功后，root默认没有密码，我们需要设置root密码。

设置之前，我们需要先设置PATH，要不不能直接调用mysql

修改/etc/profile文件，在文件末尾添加

PATH=/usr/local/mysql/bin:$PATHexport PATH

关闭文件，运行下面的命令，让配置立即生效

source /etc/profile

现在，我们可以在终端内直接输入mysql进入，mysql的环境了

执行下面的命令修改root密码

mysql -uroot  mysql> SET PASSWORD = PASSWORD('123456');

若要设置root用户可以远程访问，执行

mysql> GRANT ALL PRIVILEGES ON *.* TO 'root'@'172.16.%' IDENTIFIED BY 'password' WITH GRANT OPTION;

红色的password为远程访问时，root用户的密码，可以和本地不同。

配置防火墙

防火墙的3306端口默认没有开启，若要远程访问，需要开启这个端口

打开/etc/sysconfig/iptables

在“-A INPUT –m state --state NEW –m tcp –p –dport 22 –j ACCEPT”，下添加：

-A INPUT -m state --state NEW -m tcp -p -dport 3306 -j ACCEPT

然后保存，并关闭该文件，在终端内运行下面的命令，刷新防火墙配置：

service iptables restart

OK，一切配置完毕，你可以访问你的MySQL了~

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Added on December 2, 2014:

CentOS 7 uses Firewalld as the firewall by default, so after modifying iptables, it will not work at all after restarting the system.

The method of adding a port in Firewalld is as follows:

firewall-cmd --zone=public --add-port=3306/tcp--permanent

firewall-cmd --reload


---------------------------------- -------------------------------------------------- ----------------------------
1: Add user
INSERT INTO mysql.user(Host,User,Password) values("%","dev",password("yihen382465"));
If you want to log in on any computer, replace localhost with %; you can also replace localhost with any IP, which means only allowed Log in with this IP;
If ERROR 1364 (HY000): Field 'ssl_cipher' doesn't have a default value, set the sql_mode in the configuration file to NO_ENGINE_SUBSTITUTION, and then restart mysql

2: Create a database
CREATE DATABASE distributorDEFAULT CHARACTER SET utf8 COLLATE utf8_general_ci;

3: Grant the database
grant all privileges on distributor.* to dev@localhost identified by '123456';

4: Refresh privileges
flush privileges;

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