mysql5.6 升級至 mysql5.7

環境介紹： 舊庫： basedir=/usr/local/mysql-5.6 datadir=/home/mysql  config=/home/mysql/my.cnf sock=/home/mysql/mysql.sock  sql_mode=NO_ENGINE_SUBSTITUTION,STRICT_TRANS_TABLES character_set_server = utf8 lower_case_table_names=1 skip-host-cache skip-name-resolve federated log-error=/home/mysql/log/mysqld.log pid-file=/home/mysql/master.example.com.pid

[mysql] default-character-set = utf8 socket=/home/mysql/mysql.sock

升級步驟：

1、對mysql5.6進行全庫備份（******）用於失敗倒回 2、關閉mysql5.6版本資料庫 3、將mysql5.7軟體部署 4、修改配置資訊 5、修改啟動指令碼 6、啟動mysql5.7資料庫 7、mysql_upgrade升級資料庫相關引數 8、重啟資料庫，測試升級結果

1、全庫備份 mysqldump -uroot -p123456 --all-databases > /root/mysql_all.sql

2、 關閉資料庫

/usr/local/mysql-5.6/bin/mysqladmin -uroot -p123456 shutdown

驗證 netstat -tnpl|grep :3306

3、 部署mysql5.7 tar xf mysql-5.7.22-el7-x86_64.tar.gz -C /usr/local

cd /usr/local  mv mysql-5.7.22 mysql5.7

4、修改配置資訊

vim /home/mysql/my.cnf  basedir=/usr/local/mysql5.7            ---修改 

5、修改啟動指令碼 cp /usr/local/mysql5.7/support-files/mysql.server /etc/init.d/mysql5.7

vim /etc/init.d/mysql5.7 basedir=/usr/local/mysql5.7 datadir=/home/mysql

6、啟動mysql5.7 service mysql5.7 start

[[email protected] ~]# netstat -tnpl |grep :3306 tcp6       0      0 :::3306                 :::*                    LISTEN      8820/mysqld 

[[email protected] mysql]# mysql -uroot -p123456 mysql: [Warning] Using a password on the command line interface can be insecure. Welcome to the MySQL monitor.  Commands end with ; or \g. Your MySQL connection id is 2 Server version: 5.7.22 MySQL Community Server (GPL)

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7、mysql_upgrade升級資料庫相關引數 mysql_upgrade -uroot -p123456  mysql> select user,host, authentication_string from mysql.user; +---------------+--------------------+-------------------------------------------+ | user          | host               | authentication_string                     | +---------------+--------------------+-------------------------------------------+ | root          | localhost          | *6BB4837EB74329105EE4568DDA7DC67ED2CA2AD9 | | root          | master.example.com |                                           | | root          | 127.0.0.1          |                                           |

測試升級成功