53 lines
2.3 KiB
XML
53 lines
2.3 KiB
XML
<?xml version="1.0" encoding="UTF-8"?>
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<section 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="object-storage-service">
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<title>OpenStack Object Storage</title>
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<para>The OpenStack Object Storage is a multi-tenant object storage system.
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It is highly scalable and can manage large amounts of unstructured data
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at low cost through a RESTful HTTP API.</para>
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<para>It includes the following components:</para>
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<variablelist>
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<varlistentry><term>Proxy servers (<systemitem
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class="service">swift-proxy-server</systemitem>)</term>
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<listitem><para>Accepts OpenStack Object Storage API and raw HTTP
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requests to upload files, modify metadata, and create containers. It
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also serves file or container listings to web browsers. To improve
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performance, the proxy server can use an optional cache that
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is usually deployed with memcache.</para></listitem>
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</varlistentry>
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<varlistentry>
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<term>Account servers (<systemitem class="service"
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>swift-account-server</systemitem>)</term>
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<listitem><para>Manages accounts defined with Object
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Storage.</para></listitem>
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</varlistentry>
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<varlistentry>
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<term>Container servers (<systemitem class="service"
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>swift-container-server</systemitem>)</term>
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<listitem><para>Manages the mapping of containers or folders, within
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Object Storage.</para></listitem>
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</varlistentry>
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<varlistentry>
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<term>Object servers (<systemitem class="service"
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>swift-object-server</systemitem>)</term>
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<listitem><para>Manages actual objects,such as files, on the
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storage nodes.</para></listitem>
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</varlistentry>
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<varlistentry>
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<term>Various periodic processes</term>
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<listitem><para>Performs housekeeping tasks on the large data store.
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The replication services ensure consistency and availability through
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the cluster. Other periodic processes include auditors, updaters, and
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reapers.</para></listitem>
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</varlistentry>
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<varlistentry>
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<term>WSGI middleware</term>
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<listitem><para>Handles authentication and is usually OpenStack
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Identity.</para></listitem>
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</varlistentry>
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</variablelist>
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</section>
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