ubuntu kylin 14.10下多个mysql 5.7.14安装教程
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前文已述，因为需要测试mysql的主从配置方案，所以要安装多个mysql。这次是在ubuntu kylin 14.10上安装多个mysql 5.7.14。
系统环境：ubuntu kylin 14.10，64位系统
mysql版本：5.7.14社区版
mysql下载地址：http://dev.mysql.com/downloads/mysql/,选择 Linux - Generic,下载612.9M的mysql-5.7.14-linux-glibc2.5-x86_64.tar.gz
mysql官方安装文档：http://dev.mysql.com/doc/refman/5.7/en/binary-installation.html1.按照官方安装文档进行即可，只是一些shell命令做了修改，对ubuntu来说，大部分命令都需要在前面增加sudo
shell> sudo groupadd mysql shell> sudo useradd -r -g mysql -s /bin/false mysql shell> cd /usr/local shell> sudo tar -zxvf /path/to/mysql-VERSION-OS.tar.gz shell> sudo mv mysql-5.7.14-linux-glibc2.5-x86_64 mysql-5.7.14-linux-glibc2.5-x86_64-3306 #将mysql的目录改了一下名 shell> sudo ln -s mysql-5.7.14-linux-glibc2.5-x86_64-3306 mysql-3306 shell> cd mysql-3306 shell> sudo mkdir mysql-files shell> sudo chmod 750 mysql-files shell> sudo chown -R mysql:mysql . shell> sudo cp support-files/my-default.cnf ./my.cnf #copy一份my.cnf 接着编辑my.cnf,打开basedir，datadir，port等项，按如下配置： basedir = /usr/local/mysql-3306 datadir = /usr/local/mysql-3306/data port = 3306 server_id = 11 然后开始初始化3306端口上的mysql： shell> sudo bin/mysqld --defaults-file=/usr/local/mysql-3306/my.cnf --initialize --user=mysql 2016-07-29T15:38:48.896585Z 0 [Warning] TIMESTAMP with implicit DEFAULT value is deprecated. Please use --explicit_defaults_for_timestamp server option (see documentation for more details). 2016-07-29T15:38:48.896672Z 0 [Warning] 'NO_ZERO_DATE', 'NO_ZERO_IN_DATE' and 'ERROR_FOR_DIVISION_BY_ZERO' sql modes should be used with strict mode. They will be merged with strict mode in a future release. 2016-07-29T15:38:48.896682Z 0 [Warning] 'NO_AUTO_CREATE_USER' sql mode was not set. 2016-07-29T15:38:50.498675Z 0 [Warning] InnoDB: New log files created, LSN=45790 2016-07-29T15:38:50.890849Z 0 [Warning] InnoDB: Creating foreign key constraint system tables. 2016-07-29T15:38:51.062752Z 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: 8c708a13-55a2-11e6-835e-a0481ced538c. 2016-07-29T15:38:51.088854Z 0 [Warning] Gtid table is not ready to be used. Table 'mysql.gtid_executed' cannot be opened. 2016-07-29T15:38:51.090179Z 1 [Note] A temporary password is generated for root@localhost: pJLwjf%q;1t） shell> sudo bin/mysql_ssl_rsa_setup --defaults-file=/usr/local/mysql-3306/my.cnf Generating a 2048 bit RSA private key .........+++ .......................+++ writing new private key to 'ca-key.pem' ----- Generating a 2048 bit RSA private key ..........+++ ..............................................................+++ writing new private key to 'server-key.pem' ----- Generating a 2048 bit RSA private key ................................................+++ ........................................+++ writing new private key to 'client-key.pem' ----- shell> sudo chown -R root . shell> sudo chown -R mysql data mysql-files shell> sudo bin/mysqld_safe --user=mysql & #启动mysql，在后台运行 # Next command is optional shell> cp support-files/mysql.server /etc/init.d/mysql.server
2.开始登录mysql进行相关操作
/usr/local/mysql-3306> bin/mysql -uroot -p
注意在执行bin/mysqld初始化时，在命令行最后的提示中给出了一个临时口令，输入之后即可登录。登录mysql之后，要求立即修改密码，否则不能进行任何操作。执行下面的命令修改'root'@'localhost'的密码：
mysql> SET PASSWORD = PASSWORD('your new password');
mysql> ALTER USER 'root'@'localhost' PASSWORD EXPIRE NEVER;
mysql> flush privileges;
为了可以远程登录，增加一个'root'@'%'账号：
复制代码 代码如下:
mysql> grant all privileges on *.* to 'root'@'%' identified by 'your new password' with grant option;
3.按照上面的办法，继续解压安装mysql-5.7.14-linux-glibc2.5-x86_64.tar.gz，并且配置为3307，3308,3309端口，就可以安装多个mysql了。
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