276 lines
8.6 KiB
ReStructuredText
276 lines
8.6 KiB
ReStructuredText
Installation
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=============
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Using Galera Cluster requires that you install two packages. The first is
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the database server, which must include the wsrep API patch. The second
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package is the Galera Replication Plugin, which enables the write-set
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replication service functionality with the database server.
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There are three implementations of Galera Cluster: MySQL, MariaDB and
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Percona XtraDB. For each implementation, there is a software repository that
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provides binary packages for Debian, Red Hat, and SUSE-based Linux
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distributions.
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Enabling the repository
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~~~~~~~~~~~~~~~~~~~~~~~~
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Galera Cluster is not available in the base repositories of Linux
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distributions. In order to install it with your package manage, you must
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first enable the repository on your system. The particular methods for
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doing so vary depending on which distribution you use for OpenStack and
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which database server you want to use.
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Debian
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-------
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For Debian and Debian-based distributions, such as Ubuntu, complete the
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following steps:
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#. Add the GnuPG key for the database repository that you want to use.
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.. code-block:: console
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# apt-key adv --recv-keys --keyserver \
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keyserver.ubuntu.com BC19DDBA
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Note that the particular key value in this command varies depending on
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which database software repository you want to use.
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+--------------------------+------------------------+
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| Database | Key |
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+==========================+========================+
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| Galera Cluster for MySQL | ``BC19DDBA`` |
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+--------------------------+------------------------+
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| MariaDB Galera Cluster | ``0xcbcb082a1bb943db`` |
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+--------------------------+------------------------+
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| Percona XtraDB Cluster | ``1C4CBDCDCD2EFD2A`` |
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+--------------------------+------------------------+
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#. Add the repository to your sources list. Using your preferred text
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editor, create a ``galera.list`` file in the ``/etc/apt/sources.list.d/``
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directory. For the contents of this file, use the lines that pertain to
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the software repository you want to install:
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.. code-block:: linux-config
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# Galera Cluster for MySQL
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deb http://releases.galeracluster.com/DISTRO RELEASE main
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# MariaDB Galera Cluster
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deb http://mirror.jmu.edu/pub/mariadb/repo/VERSION/DISTRO RELEASE main
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# Percona XtraDB Cluster
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deb http://repo.percona.com/apt RELEASE main
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For each entry: Replace all instances of ``DISTRO`` with the distribution
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that you use, such as ``debian`` or ``ubuntu``. Replace all instances of
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``RELEASE`` with the release of that distribution, such as ``wheezy`` or
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``trusty``. Replace all instances of ``VERSION`` with the version of the
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database server that you want to install, such as ``5.6`` or ``10.0``.
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.. note:: In the event that you do not know the release code-name for
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your distribution, you can use the following command to
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find it out:
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.. code-block:: console
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$ lsb_release -a
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#. Update the local cache.
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.. code-block:: console
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# apt-get update
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Packages in the Galera Cluster Debian repository are now available for
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installation on your system.
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Red Hat
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--------
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For Red Hat Enterprise Linux and Red Hat-based Linux distributions, the
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process is more straightforward. In this file, only enter the text for
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the repository you want to use.
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- For Galera Cluster for MySQL, using your preferred text editor, create a
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``Galera.repo`` file in the ``/etc/yum.repos.d/`` directory.
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.. code-block:: linux-config
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[galera]
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name = Galera Cluster for MySQL
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baseurl = http://releases.galeracluster.com/DISTRO/RELEASE/ARCH
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gpgkey = http://releases.galeracluster.com/GPG-KEY-galeracluster.com
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gpgcheck = 1
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Replace ``DISTRO`` with the name of the distribution you use, such as
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``centos`` or ``fedora``. Replace ``RELEASE`` with the release number,
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such as ``7`` for CentOS 7. Replace ``ARCH`` with your system
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architecture, such as ``x86_64``
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- For MariaDB Galera Cluster, using your preferred text editor, create a
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``Galera.repo`` file in the ``/etc/yum.repos.d/`` directory.
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.. code-block:: linux-config
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[mariadb]
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name = MariaDB Galera Cluster
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baseurl = http://yum.mariadb.org/VERSION/PACKAGE
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gpgkey = https://yum.mariadb.org/RPM-GPG-KEY-MariaDB
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gpgcheck = 1
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Replace ``VERSION`` with the version of MariaDB you want to install, such
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as ``5.6`` or ``10.0``. Replace ``PACKAGE`` with the package type and
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architecture, such as ``rhel6-amd64`` for Red Hat 6 on 64-bit
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architecture.
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- For Percona XtraDB Cluster, run the following command:
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.. code-block:: console
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# yum install http://www.percona.com/downloads/percona-release/redhat/0.1-3/percona-release-0.1-3.noarch.rpm
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Bear in mind that the Percona repository only supports Red Hat Enterprise
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Linux and CentOS distributions.
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Packages in the Galera Cluster Red Hat repository are not available for
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installation on your system.
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SUSE
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-----
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For SUSE Enterprise Linux and SUSE-based distributions, such as openSUSE
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binary installations are only available for Galera Cluster for MySQL and
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MariaDB Galera Cluster.
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#. Create a ``Galera.repo`` file in the local directory. For Galera Cluster
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for MySQL, use the following content:
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.. code-block:: linux-config
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[galera]
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name = Galera Cluster for MySQL
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baseurl = http://releases.galeracluster.com/DISTRO/RELEASE
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gpgkey = http://releases.galeracluster.com/GPG-KEY-galeracluster.com
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gpgcheck = 1
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In the text: Replace ``DISTRO`` with the name of the distribution you
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use, such as ``sles`` or ``opensuse``. Replace ``RELEASE`` with the
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version number of that distribution.
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For MariaDB Galera Cluster, instead use this content:
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.. code-block:: linux-config
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[mariadb]
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name = MariaDB Galera Cluster
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baseurl = http://yum.mariadb.org/VERSION/PACKAGE
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gpgkey = https://yum.mariadb.org/RPM-GPG-KEY-MariaDB
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gpgcheck = 1
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In the text: Replace ``VERSION`` with the version of MariaDB you want to
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install, such as ``5.6`` or ``10.0``. Replace package with the package
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architecture you want to use, such as ``opensuse13-amd64``.
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#. Add the repository to your system:
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.. code-block:: console
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$ sudo zypper addrepo Galera.repo
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#. Refresh ``zypper``:
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.. code-block:: console
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$ sudo zypper refresh
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Packages in the Galera Cluster SUSE repository are now available for
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installation.
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Installing Galera Cluster
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~~~~~~~~~~~~~~~~~~~~~~~~~~
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When you finish enabling the software repository for Galera Cluster, you can
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install it using your package manager. The particular command and packages
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you need to install varies depending on which database server you want to
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install and which Linux distribution you use:
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Galera Cluster for MySQL:
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- For Debian and Debian-based distributions, such as Ubuntu, run the
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following command:
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.. code-block:: console
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# apt-get install galera-3 mysql-wsrep-5.6
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- For Red Hat Enterprise Linux and Red Hat-based distributions, such as
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Fedora or CentOS, instead run this command:
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.. code-block:: console
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# yum install galera-3 mysql-wsrep-5.6
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- For SUSE Enterprise Linux Server and SUSE-based distributions, such as
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openSUSE, instead run this command:
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.. code-block:: console
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# zypper install galera-3 mysql-wsrep-5.6
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MariaDB Galera Cluster:
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- For Debian and Debian-based distributions, such as Ubuntu, run the
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following command:
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.. code-block:: console
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# apt-get install galera mariadb-galera-server
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- For Red Hat Enterprise Linux and Red Hat-based distributions, such as
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Fedora or CentOS, instead run this command:
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.. code-block:: console
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# yum install galera MariaDB-Galera-server
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- For SUSE Enterprise Linux Server and SUSE-based distributions, such as
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openSUSE, instead run this command:
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.. code-block:: console
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# zypper install galera MariaDB-Galera-server
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Percona XtraDB Cluster:
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- For Debian and Debian-based distributions, such as Ubuntu, run the
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following command:
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.. code-block:: console
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# apt-get install percona-xtradb-cluster
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- For Red Hat Enterprise Linux and Red Hat-based distributions, such as
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Fedora or CentOS, instead run this command:
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.. code-block:: console
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# yum install Percona-XtraDB-Cluster
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Galera Cluster is now installed on your system. You must repeat this
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process for each controller node in your cluster.
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.. warning:: In the event that you already installed the standalone version
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of MySQL, MariaDB or Percona XtraDB, this installation purges all
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privileges on your OpenStack database server. You must reapply the
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privileges listed in the installation guide.
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