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HTML
68 lines
3.3 KiB
HTML
<?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>DB_NOSYNC Flag to Flush Files</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 Installation and Build Guide" />
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<link rel="up" href="upgrade_11gr2_toc.html" title="Chapter 12. Upgrading Berkeley DB 4.8 applications to Berkeley DB 11.2.5.0" />
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<link rel="prev" href="build_unix_encrypt.html" title="Cryptography Support" />
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<link rel="next" href="upgrade_11gr2_remsupp.html" title="Dropped Support" />
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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 11.2.5.3</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">DB_NOSYNC Flag to Flush Files</th>
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</tr>
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<tr>
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<td width="20%" align="left"><a accesskey="p" href="build_unix_encrypt.html">Prev</a> </td>
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<th width="60%" align="center">Chapter 12.
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Upgrading Berkeley DB 4.8 applications to Berkeley DB 11.2.5.0
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</th>
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<td width="20%" align="right"> <a accesskey="n" href="upgrade_11gr2_remsupp.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="build_unix_db_nosync"></a>DB_NOSYNC Flag to Flush Files</h2>
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</div>
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</div>
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</div>
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<p>Applications must now pass the DB_NOSYNC flag to the methods - <code class="literal">DB->remove</code>, <code class="literal">DB->rename</code>, <code class="literal">DB_ENV->dbremove</code>, and <code class="literal">DB_ENV->dbrename</code>, to avoid a multi-database file to be flushed from cache.
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This flag is applicable if you have created the database handle in a non-transactional environment.
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</p>
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<p>By default, all non-transactional database remove/rename operations cause data to be synced to disk.
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This can now be overridden using the DB_NOSYNC flag so that files can be accessed outside the environment after the database handles are closed.
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</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="build_unix_encrypt.html">Prev</a> </td>
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<td width="20%" align="center">
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<a accesskey="u" href="upgrade_11gr2_toc.html">Up</a>
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</td>
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<td width="40%" align="right"> <a accesskey="n" href="upgrade_11gr2_remsupp.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">Cryptography Support </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"> Dropped Support</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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