卸载MariaDB
CentOS7默许装置MariaDB而不是MySQL,而且yum效劳器上也移除了MySQL相干的软件包。由于MariaDB和MySQL可能会争执,故先卸载MariaDB。
1、装置新版mysql之前,我们须要将体系自带的mariadb-lib卸载
[root@iZwz94qazh62gk5ewl4ei2Z home]# rpm -qa | grep -i mariadb
mariadb-libs-5.5.52-1.el7.x86_64
[root@iZwz94qazh62gk5ewl4ei2Z home]# rpm -e --nodeps mariadb-libs-5.5.52-1.el7.x86_64
2、到mysql的官网下载最新版mysql的rpm鸠合包:mysql-5.7.18-1.el6.x86_64.rpm-bundle.tar
3、上传mysql-5.7.18-1.el6.x86_64.rpm-bundle.tar到linux效劳器,并解压tar包
[root@iZwz94qazh62gk5ewl4ei2Z home]# mkdir mysql [root@iZwz94qazh62gk5ewl4ei2Z home]# tar -xf mysql-5.7.18-1.el6.x86_64.rpm-bundle.tar -C mysql [root@iZwz94qazh62gk5ewl4ei2Z home]# cd mysql [root@iZwz94qazh62gk5ewl4ei2Z mysql]# ll total 459492 -rw-r--r-- 1 7155 31415 23618836 Mar 20 17:40 mysql-community-client-5.7.18-1.el6.x86_64.rpm -rw-r--r-- 1 7155 31415 335496 Mar 20 17:40 mysql-community-common-5.7.18-1.el6.x86_64.rpm -rw-r--r-- 1 7155 31415 3747352 Mar 20 17:40 mysql-community-devel-5.7.18-1.el6.x86_64.rpm -rw-r--r-- 1 7155 31415 39086508 Mar 20 17:40 mysql-community-embedded-5.7.18-1.el6.x86_64.rpm -rw-r--r-- 1 7155 31415 135869292 Mar 20 17:40 mysql-community-embedded-devel-5.7.18-1.el6.x86_64.rpm -rw-r--r-- 1 7155 31415 2177064 Mar 20 17:40 mysql-community-libs-5.7.18-1.el6.x86_64.rpm -rw-r--r-- 1 7155 31415 1723180 Mar 20 17:40 mysql-community-libs-compat-5.7.18-1.el6.x86_64.rpm -rw-r--r-- 1 7155 31415 159060212 Mar 20 17:41 mysql-community-server-5.7.18-1.el6.x86_64.rpm -rw-r--r-- 1 7155 31415 104881084 Mar 20 17:41 mysql-community-test-5.7.18-1.el6.x86_64.rpm
4、运用rpm -ivh敕令举行装置
[root@iZwz94qazh62gk5ewl4ei2Z mysql]# rpm -ivh mysql-community-common-5.7.18-1.el6.x86_64.rpm warning: mysql-community-common-5.7.18-1.el6.x86_64.rpm: Header V3 DSA/SHA1 Signature, key ID 5072e1f5: NOKEY Preparing... ################################# [100%] Updating / installing... 1:mysql-community-common-5.7.18-1.e################################# [100%] [root@iZwz94qazh62gk5ewl4ei2Z mysql]# rpm -ivh mysql-community-libs-5.7.18-1.el6.x86_64.rpm warning: mysql-community-libs-5.7.18-1.el6.x86_64.rpm: Header V3 DSA/SHA1 Signature, key ID 5072e1f5: NOKEY Preparing... ################################# [100%] Updating / installing... 1:mysql-community-libs-5.7.18-1.el6################################# [100%] [root@iZwz94qazh62gk5ewl4ei2Z mysql]# rpm -ivh mysql-community-client-5.7.18-1.el6.x86_64.rpm warning: mysql-community-client-5.7.18-1.el6.x86_64.rpm: Header V3 DSA/SHA1 Signature, key ID 5072e1f5: NOKEY Preparing... ################################# [100%] Updating / installing... 1:mysql-community-client-5.7.18-1.e################################# [100%] [root@iZwz94qazh62gk5ewl4ei2Z mysql]# rpm -ivh mysql-community-server-5.7.18-1.el6.x86_64.rpm warning: mysql-community-server-5.7.18-1.el6.x86_64.rpm: Header V3 DSA/SHA1 Signature, key ID 5072e1f5: NOKEY Preparing... ################################# [100%] Updating / installing... 1:mysql-community-server-5.7.18-1.e################################# [100%] [root@iZwz94qazh62gk5ewl4ei2Z mysql]#
上面几个包有依靠关联,实行有前后。
运用rpm装置体式格局装置mysql,装置的途径以下:
a 数据库目次 /var/lib/mysql/ b 设置文件 /usr/share/mysql(mysql.server敕令及设置文件) c 相干敕令 /usr/bin(mysqladmin mysqldump等敕令) d 启动剧本 /etc/rc.d/init.d/(启动剧本文件mysql的目次) e /etc/my.conf
5、 数据库初始化
为了保证数据库目次为与文件的所有者为 mysql 上岸用户,假如你的linux体系是以 root 身份运转 mysql 效劳,须要实行下面的敕令初始化
[root@iZwz94qazh62gk5ewl4ei2Z mysql]# mysqld --initialize --user=mysql
假如是以 mysql 身份登录运转,则能够去掉 --user 选项。
别的 --initialize 选项默许以“平安”形式来初始化,则会为 root 用户生成一个暗码并将该暗码标记为逾期,上岸后你须要设置一个新的暗码,
而运用 --initialize-insecure 敕令则不运用平安形式,则不会为 root 用户生成一个暗码。
这里演示运用的 --initialize 初始化的,会生成一个 root 账户暗码,暗码在log文件里,赤色地区的就是自动生成的暗码
[root@iZwz94qazh62gk5ewl4ei2Z mysql]# cat /var/log/mysqld.log 2017-06-05T14:30:52.709474Z 0 [Warning] TIMESTAMP with implicit DEFAULT value is deprecated. Please use --explicit_defaults_for_timestamp server option (see documentation for more details). 2017-06-05T14:30:55.590590Z 0 [Warning] InnoDB: New log files created, LSN=45790 2017-06-05T14:30:56.000269Z 0 [Warning] InnoDB: Creating foreign key constraint system tables. 2017-06-05T14:30:56.109868Z 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: 960c533e-49fb-11e7-91f2-00163e089fd2. 2017-06-05T14:30:56.116186Z 0 [Warning] Gtid table is not ready to be used. Table 'mysql.gtid_executed' cannot be opened. 2017-06-05T14:30:56.116777Z 1 [Note] A temporary password is generated for root@localhost: :Wu?2QQutQwj
如今启动mysql数据库systemctl start mysqld.service(Centos7特有的启动体式格局)
[root@iZwz94qazh62gk5ewl4ei2Z mysql]# systemctl start mysqld.service
能够运用下面两个敕令对mysql举行住手,启动和重启:
启动:
运用 service 启动:service mysqld start
运用 mysqld 剧本启动:/etc/inint.d/mysqld start
运用 safe_mysqld 启动:safe_mysqld&
住手:
运用 service 启动:service mysqld stop
运用 mysqld 剧本启动:/etc/inint.d/mysqld stop
mysqladmin shutdown
重启:
运用 service 启动:service mysqld restart
运用 mysqld 剧本启动:/etc/inint.d/mysqld restart
衔接数据库
[root@iZwz94qazh62gk5ewl4ei2Z mysql]# mysql -u root -p
Enter password:
暗码输入: :Wu?2QQutQwj
修正暗码:
set password = password('你的暗码');
设置长途接见
grant all privileges on *.* to 'root' @'%' identified by '123456'; flush privileges;
设置mysql开机启动
加入到体系效劳:
chkconfig --add mysql
自动启动:
chkconfig mysql on
查询列表:
chkconfig
申明:都没封闭(off)时是没有自动启动。
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