34 lines
1.4 KiB
ReStructuredText
34 lines
1.4 KiB
ReStructuredText
Database (Galera Cluster)
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==========================
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The first step is to install the database that sits at the heart of the
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cluster. To implement high availability, run an instance of the database on
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each controller node and use Galera Cluster to provide replication between
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them. Galera Cluster is a synchronous multi-master database cluster, based
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on MySQL and the InnoDB storage engine. It is a high-availability service
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that provides high system uptime, no data loss, and scalability for growth.
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You can achieve high availability for the OpenStack database in many
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different ways, depending on the type of database that you want to use.
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There are three implementations of Galera Cluster available to you:
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- `Galera Cluster for MySQL <http://galeracluster.com/>`_ The MySQL
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reference implementation from Codership, Oy;
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- `MariaDB Galera Cluster <https://mariadb.org/>`_ The MariaDB
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implementation of Galera Cluster, which is commonly supported in
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environments based on Red Hat distributions;
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- `Percona XtraDB Cluster <http://www.percona.com/>`_ The XtraDB
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implementation of Galera Cluster from Percona.
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In addition to Galera Cluster, you can also achieve high availability
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through other database options, such as PostgreSQL, which has its own
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replication system.
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.. toctree::
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:maxdepth: 2
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controller-ha-galera-install
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controller-ha-galera-config
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controller-ha-galera-manage
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