Queens Series Release Notes


New Features

  • The galera cluster now supports cluster health checks over HTTP using port 9200. The new cluster check ensures a node is healthy by running a simple query against the wsrep sync status using monitoring user. This change will provide for a more robust cluster check ensuring we have the most fault tolerant galera cluster possible.

  • Galera healthcheck has been improved, and relies on an xinetd service. By default, the service is unaccessible (filtered with the no_access directive). You can override the directive by setting any xinetd valid value to galera_monitoring_allowed_source.

Deprecation Notes

  • The galera_percona_xtrabackup_repo_url variable which was used on Ubuntu distributions to select the upstream Percona repository has been dropped and the default upstream repository is always used from now on.