The Ultimate Guide to High Availability with MariaDB
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MariaDB Galera Cluster 5.5.37 Release Notes

The most recent MariaDB Galera Cluster 5.5 release is:
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Download | Release Notes | Changelog | Overview of MariaDB Galera Cluster

Release date: 30 Apr 2014

MariaDB Galera Cluster 5.5.37 is a Stable (GA) release. It is a merge of MariaDB 5.5.37 and Galera Cluster with additional bug fixes.

Various articles about MariaDB Galera Cluster, including known limitations and how to get started are available in the Galera section of the Knowledge Base.

For a list of changes made in MariaDB Galera Cluster 5.5.37, with links to detailed information on each push, see the MariaDB Galera Cluster 5.5.37 Changelog.

Notes about this release

  • MariaDB Galera Cluster 5.5.37 includes MariaDB 5.5.37 with Codership additions (lp:codership-mysql/5.5 till revision 3980) and Galera 25.3.5.
  • This version of MariaDB Galera Cluster supports wsrep API v25 which means MariaDB Galera Cluster can be used with either a 25.2.x or 25.3.x Galera wsrep provider. A 25.3.x wsrep provider is included in the MariaDB repositories and both 25.3.x and 25.2.x wsrep providers are available on the downloads page.
  • This release includes a new method for snapshot state transfer, wsrep_sst_xtrabackup-v2. This method of state snapshot transfer can be configured using the --wsrep_sst_method=xtrabackup-v2 option. Its use requires Percona Xtrabackup (>= 2.1.6) and other software packages like socat, nc, and tar.

See the MariaDB 5.5.37 Release Notes and Changelog for more information on the changes in MariaDB.

Note: If Galera 25.2.x and 25.3.x are both being used in the cluster, MariaDB with Galera 25.3.x must be started with wsrep_provider_options='socket.checksum=1' in order to make it backward compatible with Galera v2. Galera wsrep providers other than 25.3.x or 25.2.x are not supported.

Important: wsrep_sst_rsync (sst script) in MariaDB Galera Cluster 5.5.37 uses lsof which might not be installed by default on some linux distributions. It has to be installed if the wsrep_sst_method is set to rsync (default). Future MariaDB Galera Cluster releases will address this by adding a dependency on lsof.

Bug Fixes

This release contains fixes for bugs, compiler errors/warnings and improvements in existing scripts.

A list of all the bugs fixed can be found in the changelog.

Thanks, and enjoy MariaDB Galera Cluster!

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