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<title>Replication Manager Preferred Master Mode</title>
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<p>Library Version 12.1.6.1</p>
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<th colspan="3" align="center">Replication Manager Preferred Master
Mode</th>
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<td width="20%" align="left"><a accesskey="p" href="log_nosync.html">Prev</a> </td>
<th width="60%" align="center">Chapter 9. Upgrading Berkeley DB 12.1.6.0 applications to Berkeley DB 12.1.6.1 </th>
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<h2 class="title" style="clear: both"><a id="repmgr_prefmas"></a>Replication Manager Preferred Master
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<dl>
<dt>
<span class="sect2">
<a href="repmgr_prefmas.html#idp972776">New Parameter Values</a>
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<p>
Replication Manager now supports preferred master
mode for two-site replication groups. In preferred master mode,
one site is the preferred master site, which operates as the
master as much of the time as its availability permits. The
other site is the client site, which takes over temporarily
as master when the preferred master site is unavailable.
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<div class="sect2" lang="en" xml:lang="en">
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<h3 class="title"><a id="idp972776"></a>New Parameter Values</h3>
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<li><a href="../api_reference/C/repconfig.html#config_DB_REPMGR_CONF_PREFMAS_MASTER" class="olink">DB_REPMGR_CONF_PREFMAS_MASTER</a> — A new
<code class="literal">which</code>
parameter value for the <a href="../api_reference/C/repconfig.html" class="olink">DB_ENV->rep_set_config()</a> method to indicate
that this site is the preferred master site.
</li>
<li><a href="../api_reference/C/repconfig.html#config_DB_REPMGR_CONF_PREFMAS_CLIENT" class="olink">DB_REPMGR_CONF_PREFMAS_CLIENT</a> — A new
<code class="literal">which</code>
parameter value for the <a href="../api_reference/C/repconfig.html" class="olink">DB_ENV->rep_set_config()</a> method to indicate
that this site is the client site in a preferred master
replication group.
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<td width="40%" align="left" valign="top">New Logging Option </td>
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<a accesskey="h" href="index.html">Home</a>
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<td width="40%" align="right" valign="top"> Replication Manager Incoming Queue
Size Limit</td>
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