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409b0b797e
Minor updates to other manual pages for compatibility. Signed-off-by: Martin Schwenke <martin@meltin.net> Reviewed-by: Amitay Isaacs <amitay@gmail.com>
93 lines
3.0 KiB
XML
93 lines
3.0 KiB
XML
<?xml version="1.0" encoding="iso-8859-1"?>
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<!DOCTYPE refentry
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PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
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"http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
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<refentry id="ctdb_mutex_ceph_rados_helper.7">
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<refmeta>
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<refentrytitle>Ceph RADOS Mutex</refentrytitle>
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<manvolnum>7</manvolnum>
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<refmiscinfo class="source">ctdb</refmiscinfo>
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<refmiscinfo class="manual">CTDB - clustered TDB database</refmiscinfo>
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</refmeta>
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<refnamediv>
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<refname>ctdb_mutex_ceph_rados_helper</refname>
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<refpurpose>Ceph RADOS cluster mutex helper</refpurpose>
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</refnamediv>
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<refsect1>
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<title>DESCRIPTION</title>
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<para>
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ctdb_mutex_ceph_rados_helper can be used as a recovery lock provider
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for CTDB. When configured, split brain avoidance during CTDB recovery
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will be handled using locks against an object located in a Ceph RADOS
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pool.
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To enable this functionality, include the following line in the
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<literal>[cluster]</literal> section of
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<citerefentry><refentrytitle>ctdb.conf</refentrytitle>
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<manvolnum>5</manvolnum></citerefentry>:
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</para>
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<screen format="linespecific">
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recovery lock = !ctdb_mutex_ceph_rados_helper [Cluster] [User] [Pool] [Object]
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Cluster: Ceph cluster name (e.g. ceph)
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User: Ceph cluster user name (e.g. client.admin)
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Pool: Ceph RADOS pool name
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Object: Ceph RADOS object name
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</screen>
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<para>
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The Ceph cluster <parameter>Cluster</parameter> must be up and running,
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with a configuration, and keyring file for <parameter>User</parameter>
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located in a librados default search path (e.g. /etc/ceph/).
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<parameter>Pool</parameter> must already exist.
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</para>
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</refsect1>
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<refsect1>
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<title>SEE ALSO</title>
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<para>
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<citerefentry><refentrytitle>ctdb</refentrytitle>
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<manvolnum>7</manvolnum></citerefentry>,
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<citerefentry><refentrytitle>ctdbd</refentrytitle>
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<manvolnum>1</manvolnum></citerefentry>,
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<ulink url="http://ctdb.samba.org/"/>
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</para>
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</refsect1>
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<refentryinfo>
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<author>
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<contrib>
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This documentation was written by David Disseldorp
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</contrib>
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</author>
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<copyright>
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<year>2016</year>
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<holder>David Disseldorp</holder>
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</copyright>
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<legalnotice>
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<para>
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License as
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published by the Free Software Foundation; either version 3 of
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the License, or (at your option) any later version.
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</para>
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<para>
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This program is distributed in the hope that it will be
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useful, but WITHOUT ANY WARRANTY; without even the implied
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warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
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PURPOSE. See the GNU General Public License for more details.
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</para>
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<para>
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You should have received a copy of the GNU General Public
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License along with this program; if not, see
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<ulink url="http://www.gnu.org/licenses"/>.
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</para>
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</legalnotice>
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</refentryinfo>
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</refentry>
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