当前信息
mysql安装目录 /usr/local/mysql/ 数据目录/usr/local/mysql/data
1. 下载新版本
下载5.7.2版本mysql并解压 [root@localhost ~]# wget https://dev.mysql.com/get/Downloads/MySQL-5.7/mysql-5.7.22-el7-x86_64.tar.gz [root@localhost ~]#tar -zxvf mysql-5.7.22-el7-x86_64.tar.gz -C /usr/local/ [root@localhost ~]#cd /usr/local/ [root@localhost ~]#mv mysql-5.7.22-el7-x86_64/ mysql57
停止数据库 [root@localhost ~]# service mysql stop Shutting down MySQL. SUCCESS!
将数据库和所有数据备份 安装目录备份 [root@localhost ~]# cp -rp /usr/local/mysql /usr/local/mysql56 数据备份 [root@localhost ~]# cd / [root@localhost /]# cp -rp data data56 启动文件备份 [root@localhost /]# cd /etc/init.d/ [root@localhost init.d]# cp mysql mysql56 配置文件备份 [root@localhost init.d]# cp /etc/my.cnf /etc/my.cnf_56
2.数据库升级
①删除原basedir并替换
[root@localhost ~]# cd /usr/local/ [root@localhost local]# ls bin games lib libexec mysql56 sbin src etc include lib64 mysql mysql57 share [root@localhost local]# rm -rf mysql [root@localhost local]# mv mysql57 mysql 记得修改新mysql权限 [root@localhost local]# chown -R mysql.mysql mysql
②替换新版mysql启动脚本
我这边默认所以不需要调整如果有变化还需要修改地址
[root@localhost local]# cp /usr/local/mysql/support-files/mysql.server /etc/init.d/mysqlcp: overwrite ‘/etc/init.d/mysql’? y [root@localhost local]# vim /etc/init.d/mysql 编写新启动脚本 将basedir和datadir填写进去
basedir=/usr/local/mysql
datadir=/data
③启动mysql
[root@localhost local]# service mysql start Starting MySQL… SUCCESS! 查看进程和端口确认启动
④升级数据字典
[root@localhost local]# /usr/local/mysql/bin/mysql_upgrade -uroot -p Enter password: Checking if update is needed. Checking server version. Running queries to upgrade MySQL server. Checking system database. mysql.columns_priv OK mysql.db OK mysql.engine_cost OK mysql.event OK mysql.func OK mysql.general_log OK mysql.gtid_executed OK mysql.help_category OK mysql.help_keyword OK mysql.help_relation OK mysql.help_topic OK mysql.innodb_index_stats OK mysql.innodb_table_stats OK mysql.ndb_binlog_index OK mysql.plugin OK mysql.proc OK mysql.procs_priv OK mysql.proxies_priv OK mysql.server_cost OK mysql.servers OK mysql.slave_master_info OK mysql.slave_relay_log_info OK mysql.slave_worker_info OK mysql.slow_log OK mysql.tables_priv OK mysql.time_zone OK mysql.time_zone_leap_second OK mysql.time_zone_name OK mysql.time_zone_transition OK mysql.time_zone_transition_type OK mysql.user OK Checking databases. sys.sys_config OK Upgrade process completed successfully. Checking if update is needed.
⑤重启启动mysql并验证
[root@localhost local]# service mysql restart Shutting down MySQL… SUCCESS! Starting MySQL. SUCCESS! 可以看到数据库已经升级到5.7了
