node.3.cnf

[mysqld]
wsrep_node_address="node1.localhost"
wsrep_node_name="node3"
wsrep_cluster_address="gcomm://node1.localhost,node2.localhost,node3.localhost"

wsrep_provider=/usr/lib/libgalera_smm.so
binlog_format=ROW
default_storage_engine=InnoDB
innodb_autoinc_lock_mode=2
innodb_doublewrite=1
query_cache_size=0
wsrep_on=ON