SET GLOBAL wsrep_provider_options=“pc.bootstrap=1”;
systemctl start mysql –wsrep-new-cluster
SHOW STATUS LIKE 'wsrep_%';
https://severalnines.com/blog/how-bootstrap-mysqlmariadb-galera-cluster
http://galeracluster.com/documentation-webpages/startingcluster.html
http://abcg5.pixnet.net/blog/post/113914391-%E5%AE%89%E8%A3%9Dmariadb-galera-cluster(10.1)
