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incomplete, do not use!
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What we really want to set up is a galera cluster. We will use 3 systems for this Mariadb is a relational database. Configured as a Galera cluster it can run as a distributed sql server that automatically replicates data between servers.
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We will configure 3 mariadb servers in a Galera cluster.
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 * 192.168.1.55 mariadb01
 * 192.168.1.56 mariadb02
 * 192.168.1.57 mariadb03

== Software ==
{{{
apt-get install mariadb-server rsync
}}}

== Configuration ==

Stop mariadb on all nodes.
{{ service mariadb stop
}}}

Add the configuration for galera to `/etc/mysql/conf.d/galera.cnf`. Replace names so they fit the current node.
{{{
[galera]
wsrep_on=ON
wsrep_provider=/usr/lib/galera/libgalera_smm.so
wsrep_cluster_address=gcomm://mariadb01,mariadb02,mariadb03
wsrep_node_address=mariadb01
wsrep_node_name=mariadb01.kallenberg.dk
binlog_format=row
default_storage_engine=InnoDB
innodb_autoinc_lock_mode=2
# Custom settings
wsrep_cluster_name="mariadb_galera"
wsrep_sst_method=rsync
bind-address=0.0.0.0
}}}

On the first node the cluster is started.
{{{
galera_new_cluster
}}}

On additional nodes the service is started.
{{{
service mariadb start
}}}
== References ==
 * https://blog.cloudandheat.com/index.php/en/2016/09/09/tutorial-simple-mariadb-galera-cluster-with-haproxy-load-balancing/
 * https://linode.com/docs/databases/mariadb/set-up-mariadb-clusters-with-galera-debian-and-ubuntu/
Configure the [[Mariadb Server|servers]] then continue by adding [[Mariadb Encryption|replication encryption]] between servers in the cluster and finalize with [[Mariadb Client-Server Encryption|client/server encryption]].

Mariadb

Mariadb is a relational database. Configured as a Galera cluster it can run as a distributed sql server that automatically replicates data between servers.

We will configure 3 mariadb servers in a Galera cluster.

Configure the servers then continue by adding replication encryption between servers in the cluster and finalize with client/server encryption.

None: Mariadb (last edited 2020-02-03 17:13:54 by Kristian Kallenberg)