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71 lines
3.3 KiB
HTML
71 lines
3.3 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>Logging</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_verb.html" title="DB_ENV->set_verbose" />
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<link rel="next" href="upgrade_4_3_fileopen.html" title="DB_FILEOPEN" />
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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">Logging</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_verb.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_fileopen.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_log"></a>Logging</h2>
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</div>
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</div>
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</div>
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<p>In previous releases, the <a href="../api_reference/C/envset_flags.html" class="olink">DB_ENV->set_flags()</a> method flag
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DB_TXN_NOT_DURABLE specified that transactions for the entire database
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environment were not durable. However, it was not possible to set this
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flag in environments that were part of replication groups, and physical
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log files were still created. The 4.3 release adds support for true
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in-memory logging for both replication and non-replicated sites.</p>
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<p>Existing applications setting the DB_TXN_NOT_DURABLE flag for database
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environments should be upgraded to set the DB_LOG_INMEMORY flag instead.</p>
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<p>In previous releases, log buffer sizes were restricted to be less than
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or equal to the log file size; this restriction is no longer required.</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_verb.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_fileopen.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">DB_ENV->set_verbose </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"> DB_FILEOPEN</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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