Any compressive HA and DR guide for MariaDB?
I know from MySQL, and PXC that this kind of OSDB can't do DR at all, they must be setting up 2 x cluster on each site and setup replication between them.
how about MariaDB? the same thing?
usually how many nodes minimum need for MariaDB cluster? still 2?
but I heard that MariaDB is the only MySQL variant that support replica across different network, so the Single cluster can across different site?