MariaDB Galera Cluster¶

Tasks¶

Find the node that is safe to bootraps the cluster from, look for safe_to_bootstrap: 1

$ cat /var/lib/mysql/grastate.dat
# GALERA saved state
version: 2.1
uuid:    438f1f9f-6b1a-11e7-8ee6-b772e69ca864
seqno:   -1
safe_to_bootstrap: 1

Start this node first

$ systemctl set-environment _WSREP_NEW_CLUSTER='--wsrep-new-cluster' && systemctl start mariadb && systemctl set-environment _WSREP_NEW_CLUSTER=''

Finally, start the other nodes as usual