RHEL7.x/Centos配置笔记3- from Mysql to Mariadb-优快云博客

https://mariadb.com/kb/en/library/mariadb-vs-mysql-compatibility/

Replication Compatibility

Slave↓ Master→	MariaDB-5.5	MariaDB-10.0	MariaDB-10.1	MariaDB-10.2	MySQL-5.6	MySQL-5.7	MySQL-8.0
MariaDB-5.5	Ok	No	No	No	No	No	No
MariaDB-10.0	Ok	Ok			Ok
MariaDB-10.1	Ok	Ok	Ok		Ok
MariaDB-10.2	Ok	Ok	Ok	Ok	Ok	Ok
MySQL-5.6					X	X	X
MySQL-5.7					X	X	X
MySQL-8.0					X	X	X

Note X: Refer to MySQL documentation

Note: When replication from MySQL in GTID mode, MariaDB will remove the MySQL GTID events and replace them with MariaDB GTID events.

[root@localhost Packages]# ls |grep maria

mariadb-5.5.44-2.el7.x86_64.rpm
mariadb-bench-5.5.44-2.el7.x86_64.rpm
mariadb-devel-5.5.44-2.el7.i686.rpm
mariadb-devel-5.5.44-2.el7.x86_64.rpm
mariadb-libs-5.5.44-2.el7.i686.rpm
mariadb-libs-5.5.44-2.el7.x86_64.rpm
mariadb-server-5.5.44-2.el7.x86_64.rpm
mariadb-test-5.5.44-2.el7.x86_64.rpm
[root@localhost Packages]# rpm -qa |grep maria
mariadb-libs-5.5.44-2.el7.x86_64
mariadb-server-5.5.44-2.el7.x86_64
mariadb-5.5.44-2.el7.x86_64
[root@localhost Packages]# ma
machinectl mailq mailx makedeltarpm man manpath mapscrn
macptopbm mailq.postfix make makedumpfile mandb manweb matchpathcon
mail mailstat makedb makeinfo manpage-alert mapfile mattrib
[root@localhost Packages]# rpm -ivh mariadb-bench-5.5.44-2.el7.x86_64.rpm mariadb-devel-5.5.44-2.el7.x86_64.rpm mariadb-test-5.5.44-2.el7.x86_64.rpm
warning: mariadb-bench-5.5.44-2.el7.x86_64.rpm: Header V3 RSA/SHA256 Signature, key ID fd431d51: NOKEY
Preparing... ################################# [100%]
Updating / installing...
1:mariadb-test-1:5.5.44-2.el7 ################################# [ 33%]
2:mariadb-devel-1:5.5.44-2.el7 ################################# [ 67%]
3:mariadb-bench-1:5.5.44-2.el7 ################################# [100%]

[root@localhost Packages]#

lake@localhost:~$ my
myisamchk mysqlbinlog mysqldumpslow mysqlshow
myisam_ftdump mysqlbug mysql_find_rows mysqlslap
myisamlog mysqlcheck mysql_fix_extensions mysqltest
myisampack mysql_client_test mysqlhotcopy mysql_tzinfo_to_sql
my_print_defaults mysql_config mysqlimport mysql_upgrade
my_safe_process mysql_convert_table_format mysql_install_db mysql_waitpid
mysql mysqld_multi mysql_plugin mysql_zap
mysqlaccess mysqld_safe mysql_secure_installation
mysqladmin mysqldump mysql_setpermission
lake@localhost:~$ rpm -qa |grep mysql
akonadi-mysql-1.9.2-4.el7.x86_64
php-mysql-5.4.16-36.el7_1.x86_64
pcp-pmda-mysql-3.10.6-2.el7.x86_64
qt-mysql-4.8.5-11.el7.x86_64

lake@localhost:~$ rpm -qa |grep mari
mariadb-devel-5.5.44-2.el7.x86_64
mariadb-libs-5.5.44-2.el7.x86_64
mariadb-server-5.5.44-2.el7.x86_64
mariadb-bench-5.5.44-2.el7.x86_64
mariadb-5.5.44-2.el7.x86_64
mariadb-test-5.5.44-2.el7.x86_64
marisa-0.2.4-3.el7.x86_64
lake@localhost:~$ which mysql
/usr/bin/mysql
lake@localhost:~$ rpm -qf /usr/bin/mysql
mariadb-5.5.44-2.el7.x86_64

lake@localhost:~$

lake@localhost:~$ sudo systemctl list-units --type=service |grep maria
mariadb.service loaded active running MariaDB database server

lake@localhost:~$ sudo systemctl start mariadb && systemctl enable mariadb
Created symlink from /etc/systemd/system/multi-user.target.wants/mariadb.service to /usr/lib/systemd/system/mariadb.service.

lake@localhost:~$

lake@localhost:~$ netstat -a --tcp |grep mysql

tcp 0 0 0.0.0.0:mysql 0.0.0.0:* LISTEN

lake@localhost:~$ mysql ########### Default no password for any user DB login
Welcome to the MariaDB monitor. Commands end with ; or \g.
Your MariaDB connection id is 2
Server version: 5.5.44-MariaDB MariaDB Server

Copyright (c) 2000, 2015, Oracle, MariaDB Corporation Ab and others.

Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.

MariaDB [(none)]> Ctrl-C -- exit!

Aborted

####### security setting

lake@localhost:~$ sudo mysql_secure_installation

/bin/mysql_secure_installation: line 379: find_mysql_client: command not found

NOTE: RUNNING ALL PARTS OF THIS SCRIPT IS RECOMMENDED FOR ALL MariaDB
SERVERS IN PRODUCTION USE! PLEASE READ EACH STEP CAREFULLY!

In order to log into MariaDB to secure it, we'll need the current
password for the root user. If you've just installed MariaDB, and
you haven't set the root password yet, the password will be blank,
so you should just press enter here.

Enter current password for root (enter for none): <<<<<<<< Enter
OK, successfully used password, moving on...

Setting the root password ensures that nobody can log into the MariaDB
root user without the proper authorisation.

Set root password? [Y/n] Y
New password:
Re-enter new password:
Password updated successfully!
Reloading privilege tables..
... Success!

By default, a MariaDB installation has an anonymous user, allowing anyone
to log into MariaDB without having to have a user account created for
them. This is intended only for testing, and to make the installation
go a bit smoother. You should remove them before moving into a
production environment.

Remove anonymous users? [Y/n] y
... Success!

Normally, root should only be allowed to connect from 'localhost'. This
ensures that someone cannot guess at the root password from the network.

Disallow root login remotely? [Y/n] y
... Success!

By default, MariaDB comes with a database named 'test' that anyone can
access. This is also intended only for testing, and should be removed
before moving into a production environment.

Remove test database and access to it? [Y/n] n
... skipping.

Reloading the privilege tables will ensure that all changes made so far
will take effect immediately.

Reload privilege tables now? [Y/n] Y
... Success!

### In case, you allow remote mysql login, set in firewall

# firewall-cmd --permanent --add-service=mysql
success
# firewall-cmd --reload
success

#### Try password login!!

lake@localhost:~$ mysql -uroot -p
Enter password:
Welcome to the MariaDB monitor. Commands end with ; or \g.
Your MariaDB connection id is 18
Server version: 5.5.44-MariaDB MariaDB Server

Copyright (c) 2000, 2015, Oracle, MariaDB Corporation Ab and others.

Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.

MariaDB [(none)]> select @@version; show databases
+----------------+
| @@version |
+----------------+
| 5.5.44-MariaDB |
+----------------+
1 row in set (0.00 sec)