CentOS 6.8搭建Galera Cluster（innodb引擎）：
注：
共需要3臺服務器
下載網址：
http://releases.galeracluster.com/galera-3.23/centos/6/x86_64
http://releases.galeracluster.com/mysql-wsrep-5.6/centos
galera-3-25.3.23-2.el6.x86_64.rpm
mysql-wsrep-client-5.6-5.6.43-25.25.el6.x86_64.rpm
mysql-wsrep-libs-compat-5.6-5.6.43-25.25.el6.x86_64.rpm
mysql-wsrep-server-5.6-5.6.43-25.25.el6.x86_64.rpm
mysql-wsrep-shared-5.6-5.6.43-25.25.el6.x86_64.rpm
mysql-wsrep-test-5.6-5.6.43-25.25.el6.x86_64.rpm
第1臺：
yum install boost-devel
rpm -U mysql-wsrep-client-5.6-5.6.43-25.25.el6.x86_64.rpm mysql-wsrep-libs-compat-5.6-5.6.43-25.25.el6.x86_64.rpm mysql-wsrep-server-5.6-5.6.43-25.25.el6.x86_64.rpm mysql-wsrep-shared-5.6-5.6.43-25.25.el6.x86_64.rpm mysql-wsrep-test-5.6-5.6.43-25.25.el6.x86_64.rpm
rpm -i /home/setup/Galera/galera-3-25.3.23-2.el6.x86_64.rpm
vi /etc/my.cnf
[mysqld]
datadir=/home/mysqldb/mysql
socket=/var/lib/mysql/mysql.sock
user=mysql
Disabling symbolic-links is recommended to prevent assorted security risks
symbolic-links=0
binlog_format=ROW
bind-address=0.0.0.0
default_storage_engine=innodb
innodb_autoinc_lock_mode=2
innodb_flush_log_at_trx_commit=0
wsrep_cluster_name='ming'
wsrep-provider=/usr/lib64/galera-3/libgalera_smm.so
wsrep_cluster_address="gcomm://" （第1臺這樣寫）
wsrep_node_name=gamysql01
wsrep_node_address=10.0.1.2
wsrep_sst_method=rsync
wsrep_sst_auth=ming:xxxxxx
[mysqld_safe]
log-error=/home/mysqldb/mysql_logs/mysqld.log
pid-file=/var/run/mysqld/mysqld.pid
:wq
service mysql start --wsrep-new-cluster （第1臺第1次加--wsrep-new-cluster,後面服務器不用加）
cat .mysql_secret
mysql -u root -p'xxxxxx'
SET PASSWORD for root@'localhost'=password('xxxxxx');
grant all on . to ming@'10.%' identified by 'xxxxx';
flush privileges;
show status like 'wsrep_%'; （看到“wsrep_incoming_addresses | 10.0.1.2:3306”說明啓動了 ）
exit
第2臺：
rpm -U mysql-wsrep-client-5.6-5.6.43-25.25.el6.x86_64.rpm mysql-wsrep-libs-compat-5.6-5.6.43-25.25.el6.x86_64.rpm mysql-wsrep-server-5.6-5.6.43-25.25.el6.x86_64.rpm mysql-wsrep-shared-5.6-5.6.43-25.25.el6.x86_64.rpm mysql-wsrep-test-5.6-5.6.43-25.25.el6.x86_64.rpm
service mysql restart
vi /etc/my.cnf
[mysqld]
datadir=/home/mysqldb/mysql
socket=/var/lib/mysql/mysql.sock
user=mysql
Disabling symbolic-links is recommended to prevent assorted security risks
symbolic-links=0
binlog_format=ROW
bind-address=0.0.0.0
default_storage_engine=innodb
innodb_autoinc_lock_mode=2
innodb_flush_log_at_trx_commit=0
wsrep_cluster_name='ming'
wsrep-provider=/usr/lib64/galera-3/libgalera_smm.so
wsrep_cluster_address="gcomm://10.0.1.2,10.0.1.3,10.0.1.4"
wsrep_node_name=gamysql02
wsrep_node_address=10.0.1.3
wsrep_sst_method=rsync
wsrep_sst_auth=ming:xxxxxx
[mysqld_safe]
log-error=/home/mysqldb/mysql_logs/mysqld.log
pid-file=/var/run/mysqld/mysqld.pid
:wq
service mysql start
cat .mysql_secret
mysql -u root -p'xxxxxx'
SET PASSWORD for root@'localhost'=password('xxxxxx');
grant all on . to ming@'10.0.1.2' identified by 'xxxxx';
flush privileges;
exit
第3臺基本同第2臺
此時再回到第1臺mysql裏執行show status like 'wsrep_%';會看到3臺服務器
驗證：
在任意1臺上新建庫，其它2臺會自動同步