mirror of
https://github.com/berkeleydb/libdb.git
synced 2024-11-16 17:16:25 +00:00
76 lines
4 KiB
HTML
76 lines
4 KiB
HTML
<?xml version="1.0" encoding="UTF-8" standalone="no"?>
|
||
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
|
||
<html xmlns="http://www.w3.org/1999/xhtml">
|
||
<head>
|
||
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
|
||
<title>Replication</title>
|
||
<link rel="stylesheet" href="gettingStarted.css" type="text/css" />
|
||
<meta name="generator" content="DocBook XSL Stylesheets V1.73.2" />
|
||
<link rel="start" href="index.html" title="Berkeley DB Upgrade Guide" />
|
||
<link rel="up" href="upgrade_4_3_toc.html" title="Chapter 7. Upgrading Berkeley DB 4.2 applications to Berkeley DB 4.3" />
|
||
<link rel="prev" href="upgrade_4_3_enomem.html" title="ENOMEM and DbMemoryException" />
|
||
<link rel="next" href="upgrade_4_3_rtc.html" title="Run-time configuration" />
|
||
</head>
|
||
<body>
|
||
<div xmlns="" class="navheader">
|
||
<div class="libver">
|
||
<p>Library Version 11.2.5.3</p>
|
||
</div>
|
||
<table width="100%" summary="Navigation header">
|
||
<tr>
|
||
<th colspan="3" align="center">Replication</th>
|
||
</tr>
|
||
<tr>
|
||
<td width="20%" align="left"><a accesskey="p" href="upgrade_4_3_enomem.html">Prev</a> </td>
|
||
<th width="60%" align="center">Chapter 7. Upgrading Berkeley DB 4.2 applications to Berkeley DB 4.3</th>
|
||
<td width="20%" align="right"> <a accesskey="n" href="upgrade_4_3_rtc.html">Next</a></td>
|
||
</tr>
|
||
</table>
|
||
<hr />
|
||
</div>
|
||
<div class="sect1" lang="en" xml:lang="en">
|
||
<div class="titlepage">
|
||
<div>
|
||
<div>
|
||
<h2 class="title" style="clear: both"><a id="upgrade_4_3_repl"></a>Replication</h2>
|
||
</div>
|
||
</div>
|
||
</div>
|
||
<p>The 4.3 release removes support for logs-only replication clients. Use
|
||
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
|
||
with the <a href="../api_reference/C/repmgrstart.html#repmgrstart_DB_REP_CLIENT" class="olink">DB_REP_CLIENT</a> flag.</p>
|
||
<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,
|
||
<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
|
||
required number of replication group members that must participate in
|
||
an election in order for a master to be declared. For backward
|
||
compatibility, set the <span class="bold"><strong>nvotes</strong></span> argument to 0. The flags argument
|
||
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
|
||
"Replication Elections" for more information.</p>
|
||
<p>In the 4.3 release it is no longer necessary to do a database
|
||
environment hot backup to initialize a replication client. All that is
|
||
needed now is for the client to join the replication group. Berkeley DB will
|
||
perform an internal backup from the master to the client automatically
|
||
and will run recovery on the client to bring it up to date with the
|
||
master.</p>
|
||
</div>
|
||
<div class="navfooter">
|
||
<hr />
|
||
<table width="100%" summary="Navigation footer">
|
||
<tr>
|
||
<td width="40%" align="left"><a accesskey="p" href="upgrade_4_3_enomem.html">Prev</a> </td>
|
||
<td width="20%" align="center">
|
||
<a accesskey="u" href="upgrade_4_3_toc.html">Up</a>
|
||
</td>
|
||
<td width="40%" align="right"> <a accesskey="n" href="upgrade_4_3_rtc.html">Next</a></td>
|
||
</tr>
|
||
<tr>
|
||
<td width="40%" align="left" valign="top">ENOMEM and DbMemoryException </td>
|
||
<td width="20%" align="center">
|
||
<a accesskey="h" href="index.html">Home</a>
|
||
</td>
|
||
<td width="40%" align="right" valign="top"> Run-time configuration</td>
|
||
</tr>
|
||
</table>
|
||
</div>
|
||
</body>
|
||
</html>
|