63 lines
3.5 KiB
XML
63 lines
3.5 KiB
XML
<?xml version="1.0" encoding="UTF-8"?>
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<section xml:id="object-storage-post-install"
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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" version="5.0">
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<title>OpenStack Object Storage Post Installation</title>
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<xi:include href="section_object-storage-verifying-install.xml" />
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<section xml:id="adding-proxy-server">
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<title>Adding an Additional Proxy Server</title>
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<para>For reliability’s sake you may want to
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have more than one proxy server. You can set
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up the additional proxy node in the same
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manner that you set up the first proxy node
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but with additional configuration
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steps.</para>
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<para>Once you have more than two proxies, you also want to load
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balance between the two, which means your storage
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endpoint (what clients use to connect to your storage)
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also changes. You can select from different strategies
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for load balancing. For example, you could use round
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robin DNS, or a software or hardware load balancer (like
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pound) in front of the two proxies, and point your
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storage URL to the load balancer.</para>
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<para>Configure an initial proxy node for the initial
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setup, and then follow these additional steps
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for more proxy servers.</para>
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<orderedlist>
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<listitem>
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<para>Update the list of memcache servers in
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<filename>/etc/swift/proxy-server.conf</filename>
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for all the added proxy servers. If you
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run multiple memcache servers, use this
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pattern for the multiple IP:port
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listings:
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<literallayout class="monospaced">10.1.2.3:11211,10.1.2.4:11211</literallayout>
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in each proxy server’s conf
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file:</para>
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<para>
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<literallayout class="monospaced">
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[filter:cache]
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use = egg:swift#memcache
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memcache_servers = <PROXY_LOCAL_NET_IP>:11211
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</literallayout>
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</para>
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</listitem>
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<listitem>
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<para>Next, copy all the ring
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information to all the nodes,
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including your new proxy nodes, and
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ensure the ring info gets to all
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the storage nodes as well.</para>
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</listitem>
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<listitem>
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<para>After you sync all the nodes,
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make sure the admin has the keys in
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<filename>/etc/swift</filename> and the ownership for
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the ring file is correct.</para>
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</listitem>
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</orderedlist>
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</section>
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</section>
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