Monitor the logs

Percona XtraDB Cluster, built on the Galera Cluster technology, offers robust database server logging features. By default, Percona XtraDB Cluster logs errors to a <hostname>.err file located in the data directory. This logging behavior can be customized in the my.cnf configuration file by using the log_error option or by specifying the --log-error parameter. This flexibility ensures that you can manage error logging effectively to suit your operational needs.