How do I connect to the MariaDB Galera cluster?

How do I connect to the MariaDB Galera cluster?

Setup MariaDB Galera Cluster on Ubuntu 18.04

1. Step 1: Install MariaDB database server on Galera nodes.
2. Step 2: Configure First Galera Cluster node.
3. Step 3: Configure other Galera Cluster Nodes.
4. Step 4: Start Galera Cluster on Ubuntu 18.04.
5. Step 5: Test Galera Cluster Operation.
6. Step 6: Install and Configure HAProxy.

How do I set up a Galera cluster?

1. Step 1 — Adding the MariaDB Repositories to All Servers.
2. Step 2 — Installing MariaDB on All Servers.
3. Step 3 — Configuring the First Node.
4. Step 4 — Configuring the Remaining Nodes.
5. Step 5 — Opening the Firewall on Every Server.
6. Step 6 — Creating a SELinux Policy.
7. Step 7 — Starting the Cluster.
8. Step 8 — Testing Replication.

How does MariaDB MaxScale work with Galera Cluster?

Since we are using Galera Cluster and connection routing we want a single to which the client application can connect; MariaDB MaxScale will then route connections to this port onwards to the various nodes within the Galera Cluster. To achieve this within MariaDB MaxScale we need to define a service in the ini file.

How to connect to servers in Galera Cluster?

In our case we use the option that restricts us to servers that are fully functional members of the Galera cluster which are able to support SQL operations on the cluster. To achieve this we use the router option synced. [Galera Service] type=service router=readconnroute router_options=synced servers=dbserv1, dbserv2, dbserv3

What are reverse proxies for MariaDB Galera Cluster?

Redirect/rewrite/block offending (badly written) queries before they hit the database servers. There are three main choices of reverse proxies for Galera Cluster – HAProxy, MariaDB MaxScale or ProxySQL – all can be installed and configured automatically by ClusterControl.

How to deploy a production ready MySQL or MariaDB Galera?

We’ll open our ClusterControl UI at https://192.168.55.160/clustercontrol and create the first admin user. Then, go to the top menu and click Deploy -> MySQL Galera and you will be presented with the following dialog: