Improved security audit features in Galera Cluster for MySQL 5.7.30, and an updated 5.6.48

Codership is pleased to announce a new Generally Available (GA) release of the multi-master Galera Cluster for MySQL 5.6 and 5.7, consisting of MySQL-wsrep 5.6.48 (release notes, download) and MySQL-wsrep 5.7.30 (release notes, download) with a new Galera Replication library 3.30 (release notes, download), implementing wsrep API version 25. This release incorporates all changes to MySQL 5.6.48 and 5.7.30 respectively, making it a MySQL High Availability solution.

A highlight of this release is that with MySQL 5.7.30, you will now have access to using the Percona audit log plugin, which will help with monitoring and logging connection and query activity that has been performed on specific servers. This implementation is provided as an alternative to the MySQL Enterprise Audit Log Plugin.

The Galera Replication library 3.30 has an enhancement to ensure that upon GCache recovery, all available space will be reclaimed in the ring buffer. Frequent cluster configuration changes handling of errors are also improved.

MySQL-wsrep 5.6.48 is an updated rebase to the 5.6.48 release, but also includes improvements around crash recovery: when binary logs are enabled, there is a more consistent recovery. SSL initialization has seen improvements, and error handling of cluster wide conflicts have been improved when the cluster itself is acting as an asynchronous secondary to a MySQL primary.

MySQL-wsrep 5.7.30 is an updated rebase to the 5.7.30 release, and in addition to what is present in 5.6.48, there is also the audit log plugin as mentioned above. One important note is that for your Galera Cluster, ensure that InnoDB tablespaces are kept within the data directory (if kept outside, they may not be copied over during SST).

Across the board, there is now also support and packages for CentOS 8 and RHEL 8.

You can get the latest release of Galera Cluster from There are package repositories for Debian, Ubuntu, CentOS, RHEL, OpenSUSE and SLES. The latest versions are also available via the FreeBSD Ports Collection.