I have a 3-Cluster Galera replication and last day electricity has gone off. When I started the Mariadb servers, I saw that cluster could not start, three of them failed. I edited the grastate.dat and executed the command "galera_new_cluster", but I think there should be a better way to make this. What is the best way to start closed Galera Clusters? Or where can I find a good tutorial for monitoring and adminning for Mariadb Galera Clusters except the official mariadb site?
I am using Ubuntu Server 18.04