What is MariaDB Galera Cluster?
|30 Sep 2013||MariaDB Galera Cluster 5.5.33a||Stable (GA)||Release Notes||Changelog|
|30 Aug 2013||MariaDB Galera Cluster 5.5.32||Stable (GA)||Release Notes||Changelog|
|5 Mar 2013||MariaDB Galera Cluster 5.5.29||Stable (GA)||Release Notes||Changelog|
|21 Dec 2012||MariaDB Galera Cluster 5.5.28a||RC||Release Notes||Changelog|
|4 Sep 2012||MariaDB Galera Cluster 5.5.5||Alpha||Release Notes||Changelog|
The current versions of the Galera wsrep provider library are 26.4.7 for Galera 4 and 25.3.32 for Galera 3.
For convenience, packages containing these libraries are included in the MariaDB YUM and APT repositories.
MariaDB Galera Cluster is a synchronous multi-master cluster for MariaDB.
- Synchronous replication
- Active-active multi-master topology
- Read and write to any cluster node
- Automatic membership control, failed nodes drop from the cluster
- Automatic node joining
- True parallel replication, on row level
- Direct client connections, native MySQL look & feel
The above features yield several benefits for a DBMS clustering solution, including:
- No slave lag
- No lost transactions
- Both read and write scalability
- Smaller client latencies
A great resource for Galera users is Codership on Google Groups (
com) - If you use Galera it is recommended you subscribe.
MariaDB Galera Cluster uses the Galera library for the replication implementation. To interface with Galera replication, we have enhanced MariaDB to support the replication API definition in the wsrep API project.
The implementation of the replication API in MariaDB happens in the open source MySQL-wsrep project.
The MariaDB project is working on shipping the MariaDB Galera Cluster in partnership with Codership. The code is available on Launchpad
The latest release is MariaDB Galera 5.5.33a. It is considered Stable. Galera is in active use by several users with good results.
- Codership on Google Groups (
codership-team 'at' googlegroups (dot) com) - A great mailing list for Galera users.
- About Galera Replication
- Codership: Using Galera Cluster
- Galera Use Cases
- Getting Started with MariaDB Galera Cluster
- Fix the issues found by Buildbot
- Test plan