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+# What to install
+
+## Mariadb
+https://mariadb.com/kb/en/getting-started-with-mariadb-galera-cluster/
+https://mariadb.com/kb/en/installing-mariadb-deb-files/#installing-mariadb-galera-cluster-with-apt
+
+## Haproxy
+
+
+### other
+
+What is an Arbitrator?
+
+https://galeracluster.com/library/documentation/arbitrator.html
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