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I have several master databases using mariadb 10.3 and replicate then all to one replica using multi-master replication. All is working fine.

I want to backup that replica server, so i can restore it quickly if needed, with all the multi replication setup. In the past, I used mariabackup with --slave-info when i only had one master replication and the restore worked fine and i had the xtrabackup_slave_info with the required info to restore the replication.

Now with mutl-master replication, the --slave-info report that there is no replication setup and looks like it do not support the multi-master support.

So i'm missing something or mariabackup fail to support this? what other people do to backup a mariadb multi-master setup that allow easy replication restore?

  • I read about the same issue in percona xtrabackup (father of mariabackup) and I know that they fix this problem. I would suggest communicating with MariaDB support and/or try with percona xtrabackup. bugs.launchpad.net/percona-xtrabackup/+bug/1705484 – Jesus Uzcanga Sep 30 '19 at 18:35
  • sadly percona xtrabackup do not support mariadb 10.3, that is why mariabackup must be used. In mysql, a multi-master show slave status \G show various rows, but in mariadb, it return empty and it requires `show all slave status \G' – higuita Oct 1 '19 at 16:39

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