What is the method of deploying a PXC cluster in MySQL?

Percona XtraDB Cluster (PXC) is a MySQL cluster solution based on Galera Replication, offering high availability and fault tolerance. Deploying Percona XtraDB Cluster typically involves the following steps:

1. Install the Percona XtraDB Cluster software package: Begin by installing the Percona XtraDB Cluster software package on all nodes in the cluster. You can follow the installation guide provided by the official Percona documentation to complete this step.
2. Configure cluster nodes: Set up the my.cnf file for each cluster node, including parameters such as IP address, port number, and cluster name.
3. Start the first node: Choose a node to be the first node, start the MySQL service, and join the cluster.
4. Start other nodes: sequentially start other nodes and add them to the cluster.
5. Verify cluster configuration: Ensure that all nodes have successfully joined the cluster by executing SHOW STATUS LIKE ‘wsrep_cluster_size’; to verify the number of cluster nodes.
6. Test failover: Test the failover functionality to ensure that the cluster can automatically select a new master node when one node fails.

In summary, deploying Percona XtraDB Cluster involves installing the software package, configuring cluster nodes, adding them to the cluster one by one, validating the cluster configuration, and testing failover functionality. Detailed deployment steps can be found in the official Percona documentation or related tutorials.