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MariaDB Galera Cluster 5.5.36 Release Notes

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Release date: 12 Mar 2014

MariaDB Galera Cluster 5.5.36 is a Stable (GA) release. It is a merge of MariaDB 5.5.36 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 5.5.36, with links to detailed information on each push, see the MariaDB Galera Cluster 5.5.36 Changelog.

Includes MariaDB 5.5.36 and Galera

MariaDB Galera Cluster 5.5.36 includes MariaDB 5.5.36 with Codership additions (lp:codership-mysql/5.5 till revision 3944) and Galera 25.3.2. 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.

See the MariaDB 5.5.36 Release Notes and Changelog for more information on the changes in MariaDB.

Important : While upgrading the nodes of a MariaDB Galera cluster care must be taken when using different versions of Galera library (wsrep provider). A MariaDB Galera cluster node with Galera version 3 (25.3.xx) might fail to join an existing cluster running with Galera 2 (25.2.xx) nodes. This happens due to difference in the default values of 'socket.checksum' for Galera 2 and Galera 3 libraries.

So, in order to fix this, the node with Galera 3 should be started with an additional wsrep provider option: socket.checksum=1 in order to make it backward compatible with nodes running with Galera 2.

For example:

--wsrep_provider_options='socket.checksum=1; [other provider options; ...]'

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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