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77 lines
4 KiB
HTML
77 lines
4 KiB
HTML
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<?xml version="1.0" encoding="UTF-8" standalone="no"?>
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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
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<html xmlns="http://www.w3.org/1999/xhtml">
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<head>
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<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
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<title>Replication</title>
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<link rel="stylesheet" href="gettingStarted.css" type="text/css" />
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<meta name="generator" content="DocBook XSL Stylesheets V1.73.2" />
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<link rel="start" href="index.html" title="Berkeley DB Upgrade Guide" />
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<link rel="up" href="upgrade_4_3_toc.html" title="Chapter 7. Upgrading Berkeley DB 4.2 applications to Berkeley DB 4.3" />
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<link rel="prev" href="upgrade_4_3_enomem.html" title="ENOMEM and DbMemoryException" />
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<link rel="next" href="upgrade_4_3_rtc.html" title="Run-time configuration" />
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</head>
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<body>
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<div xmlns="" class="navheader">
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<div class="libver">
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<p>Library Version 11.2.5.2</p>
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</div>
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<table width="100%" summary="Navigation header">
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<tr>
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<th colspan="3" align="center">Replication</th>
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</tr>
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<tr>
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<td width="20%" align="left"><a accesskey="p" href="upgrade_4_3_enomem.html">Prev</a> </td>
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<th width="60%" align="center">Chapter 7. Upgrading Berkeley DB 4.2 applications to Berkeley DB 4.3</th>
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<td width="20%" align="right"> <a accesskey="n" href="upgrade_4_3_rtc.html">Next</a></td>
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</tr>
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</table>
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<hr />
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</div>
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<div class="sect1" lang="en" xml:lang="en">
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<div class="titlepage">
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<div>
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<div>
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<h2 class="title" style="clear: both"><a id="upgrade_4_3_repl"></a>Replication</h2>
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</div>
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</div>
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</div>
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<p>The 4.3 release removes support for logs-only replication clients. Use
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of the DB_REP_LOGSONLY flag to the <a href="../api_reference/C/repstart.html" class="olink">DB_ENV->rep_start()</a> should be replaced
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with the <a href="../api_reference/C/repmgrstart.html#repmgrstart_DB_REP_CLIENT" class="olink">DB_REP_CLIENT</a> flag.</p>
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<p>The 4.3 release adds two new arguments to the <a href="../api_reference/C/repelect.html" class="olink">DB_ENV->rep_elect()</a> method,
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<span class="bold"><strong>nvotes</strong></span> and <span class="bold"><strong>flags</strong></span>. The <span class="bold"><strong>nvotes</strong></span> argument sets the
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required number of replication group members that must participate in
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an election in order for a master to be declared. For backward
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compatibility, set the <span class="bold"><strong>nvotes</strong></span> argument to 0. The flags argument
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is currently unused and should be set to 0. See <a href="../api_reference/C/repelect.html" class="olink">DB_ENV->rep_elect()</a> method or
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"Replication Elections" for more information.</p>
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<p>In the 4.3 release it is no longer necessary to do a database
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environment hot backup to initialize a replication client. All that is
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needed now is for the client to join the replication group. Berkeley DB will
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perform an internal backup from the master to the client automatically
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and will run recovery on the client to bring it up to date with the
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master.</p>
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</div>
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<div class="navfooter">
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<hr />
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<table width="100%" summary="Navigation footer">
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<tr>
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<td width="40%" align="left"><a accesskey="p" href="upgrade_4_3_enomem.html">Prev</a> </td>
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<td width="20%" align="center">
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<a accesskey="u" href="upgrade_4_3_toc.html">Up</a>
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</td>
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<td width="40%" align="right"> <a accesskey="n" href="upgrade_4_3_rtc.html">Next</a></td>
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</tr>
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<tr>
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<td width="40%" align="left" valign="top">ENOMEM and DbMemoryException </td>
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<td width="20%" align="center">
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<a accesskey="h" href="index.html">Home</a>
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</td>
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<td width="40%" align="right" valign="top"> Run-time configuration</td>
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</tr>
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</table>
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</div>
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</body>
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</html>
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