W3cubDocs

/MariaDB

What is MariaDB Galera Cluster?

The most recent release of MariaDB 10.4 is:
MariaDB 10.4.8 DownloadNow
Alternate download from mariadb.org

About

galera_small

MariaDB Galera Cluster is a synchronous multi-master cluster for MariaDB. It is available on Linux only, and only supports the XtraDB/InnoDB storage engines (although there is experimental support for MyISAM - see the wsrep_replicate_myisam system variable).

Features

  • 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 MariaDB look & feel

Benefits

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

The Getting Started with MariaDB Galera Cluster page has instructions on how to get up and running with MariaDB Galera Cluster.

A great resource for Galera users is Codership on Google Groups (codership-team 'at' googlegroups (dot) com) - If you use Galera it is recommended you subscribe.

Galera Versions

MariaDB Galera Cluster is powered by:

In MariaDB 10.1 and later, the MySQL-wsrep patch has been merged into MariaDB Server. This means that the functionality of MariaDB Galera Cluster can be obtained by installing the standard MariaDB Server packages and the Galera wsrep provider library package. The following Galera version corresponds to each MariaDB Server version:

See Deciphering Galera Version Numbers for more information about how to interpret these version numbers.

Galera 4 Versions

The following table lists each version of the Galera 4 wsrep provider, and it lists which version of MariaDB each one was first released in. If you would like to install Galera 4 using yum, apt, or zypper, then the package is called galera-4.

Galera Version Released in MariaDB Version
26.4.2 MariaDB 10.4.4
26.4.1 MariaDB 10.4.3
26.4.0 MariaDB 10.4.2

Galera 3 Versions

The following table lists each version of the Galera 3 wsrep provider, and it lists which version of MariaDB each one was first released in. If you would like to install Galera 3 using yum, apt, or zypper, then the package is called galera.

Galera Version Released in MariaDB Version
25.3.27 MariaDB 10.3.18, MariaDB 10.2.27
25.3.26 MariaDB 10.3.14, MariaDB 10.2.23, MariaDB 10.1.39
25.3.25 MariaDB 10.3.12, MariaDB 10.2.20, MariaDB 10.1.38, MariaDB Galera Cluster 10.0.38, MariaDB Galera Cluster 5.5.63
25.3.24 MariaDB 10.4.0, MariaDB 10.3.10, MariaDB 10.2.18, MariaDB 10.1.37, MariaDB Galera Cluster 10.0.37, MariaDB Galera Cluster 5.5.62
25.3.23 MariaDB 10.3.5, MariaDB 10.2.13, MariaDB 10.1.32, MariaDB Galera Cluster 10.0.35, MariaDB Galera Cluster 5.5.60
25.3.22 MariaDB 10.3.3, MariaDB 10.2.11, MariaDB 10.1.29, MariaDB Galera Cluster 10.0.33, MariaDB Galera Cluster 5.5.59
25.3.21 N/A
25.3.20 MariaDB 10.3.1, MariaDB 10.2.6, MariaDB 10.1.23, MariaDB Galera Cluster 10.0.31, MariaDB Galera Cluster 5.5.56
25.3.19 MariaDB 10.3.0, MariaDB 10.2.3, MariaDB 10.1.20, MariaDB Galera Cluster 10.0.29, MariaDB Galera Cluster 5.5.54
25.3.18 MariaDB 10.2.2, MariaDB 10.1.18, MariaDB Galera Cluster 10.0.28, MariaDB Galera Cluster 5.5.53
25.3.17 MariaDB 10.1.17, MariaDB Galera Cluster 10.0.27, MariaDB Galera Cluster 5.5.51
25.3.16 N/A
25.3.15 MariaDB 10.2.0, MariaDB 10.1.13, MariaDB Galera Cluster 10.0.25, MariaDB Galera Cluster 5.5.49
25.3.14 MariaDB 10.1.12, MariaDB Galera Cluster 10.0.24, MariaDB Galera Cluster 5.5.48
25.3.12 MariaDB 10.1.11
25.3.11 N/A
25.3.10 N/A
25.3.9 MariaDB 10.1.3, MariaDB Galera Cluster 10.0.17, MariaDB Galera Cluster 5.5.42
25.3.8 N/A
25.3.7 N/A
25.3.6 N/A
25.3.5 MariaDB 10.1.1, MariaDB Galera Cluster 10.0.10, MariaDB Galera Cluster 5.5.37
25.3.4 N/A
25.3.3 N/A
25.3.2 MariaDB Galera Cluster 10.0.7, MariaDB Galera Cluster 5.5.35

See Also

Content reproduced on this site is the property of its respective owners, and this content is not reviewed in advance by MariaDB. The views, information and opinions expressed by this content do not necessarily represent those of MariaDB or any other party.

© 2019 MariaDB
Licensed under the Creative Commons Attribution 3.0 Unported License and the GNU Free Documentation License.
https://mariadb.com/kb/en/what-is-mariadb-galera-cluster/