Announcing Galera Cluster 5.5.42 and 5.6.25 with Galera 3.12

Codership is pleased to announce the release of Galera Cluster 5.5.42 and 5.6.25 with Galera Replication library 3.12, implementing wsrep API version 25.

Galera Cluster is now available as targeted packages and package repositories for a number of Linux distributions, including Ubuntu, Debian, Fedora, CentOS, OpenSUSE and SLES. Obtaining packages using a package repository removes the need to download individual files and facilitates the deployment and upgrade of Galera nodes.

This and future releases will be available from, while previous releases remain available on LaunchPad. The source repositories and bug tracking are now on

New features and notable changes in Galera Cluster and the Galera library:

  • Various forms of FLUSH that are replicated in traditional MySQL async replication are now also replicated in Galera under TOI (codership/mysql-wsrep#67)
  • The applier thread will now honor FLUSH TABLES WITH READ LOCK, FLUSH FOR EXPORT and will block until the lock is released (codership/mysql-wsrep#113)
  • Support for Debian Jessie (galera/mysql-wsrep#127,codership/galera#264)
  • The SST password is no longer passed via the command line or visble in the error log or ‘ps’ output (codership/mysql-wsrep#141)
  • The xtrabackup SST script has been updated from the upstream source (codership/mysql-wsrep#143)
  • Galera will abort gracefully if there is no disk space to write the required gcache files (codership/galera#324)
  • Gcache files are removed faster than before in order to reduce Galera disk usage (codership/galera#317)
  • Better error logging in case of SSL errors or misconfiguration (codership/galera#290)
  • The configuration in /etc/sysconfig/garb is now properly honored by the garbd systemd service (codership/galera#267)
  • Arbitrator service no longer starts automatically on package installation, giving the user the opportunity to configure it first (codership/galera#266)
  • Miscellaneous fixes in the garb startup script (codership/galera#186)