23 lines
1.0 KiB
XML
23 lines
1.0 KiB
XML
<?xml version="1.0" encoding="UTF-8"?>
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<chapter xmlns="http://docbook.org/ns/docbook"
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xmlns:xi="http://www.w3.org/2001/XInclude"
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xmlns:xlink="http://www.w3.org/1999/xlink"
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version="5.0"
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xml:id="ha-aa-db">
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<title>Database</title>
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<para>The first step is installing the database that sits at the heart of the
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cluster. When we talk about High Availability, we talk about several databases (for redundancy) and a
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means to keep them synchronized. In this case, we must choose the
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MySQL database, along with Galera for synchronous multi-master replication.</para>
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<para>The choice of database isn’t a foregone conclusion; you’re not required
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to use MySQL. It is, however, a fairly common choice in OpenStack
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installations, so we’ll cover it here.</para>
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<xi:include href="ha_aa_db/section_ha_aa_db_mysql_galera.xml"/>
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<xi:include href="ha_aa_db/section_ha_aa_db_galera_monitoring.xml"/>
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<xi:include href="ha_aa_db/section_other_ways_to_provide_a_highly_available_database.xml"/>
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</chapter>
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