====== MariaDB ======

===== Galera =====
Shutdown
<code>
systemctl stop mariadb                 # on all nodes - remember shutdown order!
systemctl disable mariadb.service      # optional on all nodes
</code>

Poweron
<code>
galera_new_cluster                     # on last stopped node
systemctl enable mariadb.service       # optional on all nodes
systemctl start mariadb                # on all other nodes after second node is synced
</code>

check cluster
<code sql>
SHOW STATUS LIKE 'wsrep_%';
</code>