官方文檔升級：https://mariadb.com/kb/en/library/upgrading/

1.備份原來的數據庫和配置文件

#mysqldump -u root -p -A > alldb.sql#cp /etc/my.cnf /etc/my.cnf.bak

2.添加 MariaDB Yum倉庫

# vim /etc/yum.repos.d/MariaDB.repo

[mariadb]

name=MariaDB

#baseurl= http://yum.mariadb.org/10.3/centos7-amd64

#gpgkey=https://yum.mariadb.org/RPM-GPG-KEY-MariaDB

baseurl = http://mirrors.ustc.edu.cn/mariadb/yum/5.5/centos7-amd64/

gpgkey=http://mirrors.ustc.edu.cn/mariadb/yum/RPM-GPG-KEY-MariaDB

gpgcheck=1

# 因為官方鏡像下載很慢，所以可以替換為國內鏡像

3. 停止數據庫運行

# systemctl stop mariadb.service

4. 卸載 MariaDB 老版本

# yum remove mariadb mariadb-server

5. 安裝新的指定版本mariadb

# sudo yum install MariaDB-server-5.5.64 MariaDB-client-5.5.64

6. 修改配置文件my.cnf

7. 啟動MariaDB

# systemctl start mysql

8. 運行 mysql_upgrade升級數據庫

# mysql_upgrade -uroot -p

Enter password:

Phase1/4: Fixing views

Phase2/4: Fixing table and database names

Phase3/4: Checking and upgrading tables

Processing databases

information_schema

mydb

mydb.app02_author OK

mydb.app02_book OK

mydb.app02_book_authors OK

mydb.app02_publisher OK

mydb.django_migrations OK

mysql

mysql.columns_priv OK

mysql.db OK

mysql.event OK

mysql.func OK

mysql.help_category OK

mysql.help_keyword OK

mysql.help_relation OK

mysql.help_topic OK

mysql.host OK

mysql.ndb_binlog_index OK

mysql.plugin OK

mysql.proc OK

mysql.procs_priv OK

mysql.proxies_priv OK

mysql.servers 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

performance_schema

test

test.authors OK

test.book_m2m_author OK

test.books OK

test.stu_to_tea OK

test.students OK

test.teachers OK

zabbix

zabbix.acknowledges OK

zabbix.actions OK

...

zabbix.widget_field OK

Phase4/4: Running 'mysql_fix_privilege_tables'OK

9.?檢查數據庫

# mysql -V

mysql Ver15.1 Distrib 5.5.65-MariaDB, for Linux (x86_64) using readline 5.1 #查看版本升級成功#cd /var/lib/mysql # 查看mysql日志和數據庫的數據

總結

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