2011-09-13 17:44:24 +00:00
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<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
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<title>Linux</title>
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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="build_unix.html" title="Chapter 7. Building Berkeley DB for UNIX/POSIX" />
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<link rel="prev" href="build_unix_irix.html" title="IRIX" />
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<link rel="next" href="build_unix_macosx.html" title="Mac OS X" />
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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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2012-11-14 21:35:20 +00:00
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<p>Library Version 11.2.5.3</p>
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2011-09-13 17:44:24 +00:00
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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">Linux</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_irix.html">Prev</a> </td>
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<th width="60%" align="center">Chapter 7.
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Building Berkeley DB for UNIX/POSIX
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</th>
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<td width="20%" align="right"> <a accesskey="n" href="build_unix_macosx.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_linux"></a>Linux</h2>
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</div>
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</div>
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</div>
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<div class="orderedlist">
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<ol type="1">
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<li>
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<span class="bold">
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<strong>I can't compile and run multithreaded applications.</strong>
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</span>
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<p>Special compile-time flags are required when compiling threaded
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applications on Linux. If you are compiling a threaded application, you
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must compile with the _REENTRANT flag:</p>
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<pre class="programlisting">cc -D_REENTRANT ...</pre>
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<p>The Berkeley DB library will automatically build with the correct options.</p>
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</li>
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<li>
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<span class="bold">
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<strong>I see database corruption when accessing databases.</strong>
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</span>
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<p>Some Linux filesystems do not support POSIX filesystem semantics.
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Specifically, ext2 and early releases of ReiserFS, and ext3 in some
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configurations, do not support "ordered data mode" and may insert random
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data into database or log files when systems crash. Berkeley DB files should
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not be placed on a filesystem that does not support, or is not
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configured to support, POSIX semantics.</p>
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</li>
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<li>
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<span class="bold">
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<strong>What scheduler should I use?</strong>
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</span>
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<p>In some Linux kernels you can select schedulers, and the default is the
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"anticipatory" scheduler. We recommend not using the "anticipatory"
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scheduler for transaction processing workloads.</p>
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</li>
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</ol>
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</div>
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<table width="100%" summary="Navigation footer">
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<td width="40%" align="left"><a accesskey="p" href="build_unix_irix.html">Prev</a> </td>
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<td width="20%" align="center">
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<a accesskey="u" href="build_unix.html">Up</a>
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</td>
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<td width="40%" align="right"> <a accesskey="n" href="build_unix_macosx.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">IRIX </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"> Mac OS X</td>
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</tr>
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