Lets configure one node ( 192.168.1.11 ) with Galera before joining additional nodes. Now, let’s move forward to Configure Galera Cluster ![]() So we need to install both Rsync using the below command:ĭatabase has been configured. Galera can use Rsync to perform the replication between cluster nodes. Restart the mariadb on each node by using the command:Īfter packages are installed, we are going to secure MariaDB using the following command on each node. Yum install MariaDB-server MariaDB-client MariaDB-common -y Now install the MariaDB package on all Nodes using the below command: # MariaDB 10.1 CentOS repository # name = MariaDB baseurl = gpgkey= gpgcheck=1 On both servers, need to configure the MariaDB server.įirst, we will add Mariadb Respository to each node and create a repo file.Īdd the following repository information to each nodes: ![]() If two nodes were utilized to construct a Galera cluster, and one node went down ungracefully, the other node would fail to function. To provide complete redundancy, at least three nodes are required. This tutorial will examine how to set up a Galera cluster with three nodes running CentOS 7 and MariaDB. Galera’s active design lacks failover, enhances load balancing, and fault tolerance. Using Galera, each node in the cluster may be a master and write to any other node simultaneously. ![]() A multi-master cluster for MariaDB, Galera uses synchronous replication to replicate data.
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