[root@node1 tank]# cat /etc/yum.repos.d/mariadb.repo //32位系统 
[mariadb] 
name=MariaDB 
baseurl=http://yum.mariadb.org/5.5/centos6-x86 
gpgkey=https://yum.mariadb.org/RPM-GPG-KEY-MariaDB 
gpgcheck=1 
 
[root@node1 tank]# cat /etc/yum.repos.d/mariadb.repo //64位系统 
[mariadb] 
name=MariaDB 
baseurl=http://yum.mariadb.org/5.5/centos6-amd64 
gpgkey=https://yum.mariadb.org/RPM-GPG-KEY-MariaDB 
gpgcheck=1 

# yum remove mysql mysql-server 

# yum install MariaDB-server MariaDB-client 
 
# yum install MariaDB-Galera-server MariaDB-client galera //具有同步多主集群特性 

# /etc/init.d/mysql start 

[root@node1 ~]# mysql 
Welcome to the MariaDB monitor. Commands end with ; or \g. 
Your MariaDB connection id is 207 
Server version: 5.5.40-MariaDB-wsrep MariaDB Server, wsrep_25.11.r4026 
 
Copyright (c) 2000, 2014, Oracle, Monty Program Ab and others. 
 
Type 'help;' or '\h' for help. Type '\c' to clear the current input statement. 
 
MariaDB [(none)]> show engines; 
+--------------------+---------+----------------------------------------------------------------------------+--------------+------+------------+ 
| Engine  | Support | Comment         | Transactions | XA | Savepoints | 
+--------------------+---------+----------------------------------------------------------------------------+--------------+------+------------+ 
| MRG_MYISAM  | YES | Collection of identical MyISAM tables     | NO  | NO | NO  | 
| CSV  | YES | CSV storage engine        | NO  | NO | NO  | 
| BLACKHOLE  | YES | /dev/null storage engine (anything you write to it disappears)  | NO  | NO | NO  | 
| MyISAM  | YES | MyISAM storage engine       | NO  | NO | NO  | 
| FEDERATED  | YES | FederatedX pluggable storage engine     | YES  | NO | YES | 
| ARCHIVE  | YES | Archive storage engine       | NO  | NO | NO  | 
| InnoDB  | DEFAULT | Percona-XtraDB, Supports transactions, row-level locking, and foreign keys | YES  | YES | YES | 
| PERFORMANCE_SCHEMA | YES | Performance Schema        | NO  | NO | NO  | 
| MEMORY  | YES | Hash based, stored in memory, useful for temporary tables   | NO  | NO | NO  | 
| Aria  | YES | Crash-safe tables with MyISAM heritage     | NO  | NO | NO  | 
+--------------------+---------+----------------------------------------------------------------------------+--------------+------+------------+ 
10 rows in set (0.03 sec)