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<h2 class="title"><a id="svn.berkeleydb"></a>Appendix D. The Berkeley DB Legacy Filesystem</h2>
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<p>
<strong>Table of Contents</strong>
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<dl class="toc">
<dt>
<span class="sect1">
<a href="svn.berkeleydb.configuration.html">Configuring Your Berkeley DB Environment</a>
</span>
</dt>
<dt>
<span class="sect1">
<a href="svn.berkeleydb.limitations.html">Limitations of Berkeley DB</a>
</span>
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<dd>
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<dt>
<span class="sect2">
<a href="svn.berkeleydb.limitations.html#svn.berkeleydb.limitations.architectural">Architectural Limitations</a>
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<dt>
<span class="sect2">
<a href="svn.berkeleydb.limitations.html#svn.berkeleydb.limitations.sharedfs">Network Share Deployment</a>
</span>
</dt>
<dt>
<span class="sect2">
<a href="svn.berkeleydb.limitations.html#svn.berkeleydb.limitations.faulttolerance">Fault Tolerance and the Need for Recovery</a>
</span>
</dt>
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</dd>
<dt>
<span class="sect1">
<a href="svn.berkeleydb.maintenance.html">Maintaining Berkeley DB Repositories</a>
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<a href="svn.berkeleydb.maintenance.html#svn.berkeleydb.maintenance.recovery">Berkeley DB Recovery</a>
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<dt>
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<a href="svn.berkeleydb.maintenance.html#svn.berkeleydb.maintenance.bdblogs">Purging unused Berkeley DB logfiles</a>
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<dt>
<span class="sect2">
<a href="svn.berkeleydb.maintenance.html#svn.berkeleydb.maintenance.bdbutil">Berkeley DB Utilities</a>
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<p>Long ago, when Subversion first learned to store versioned
data, it did so using a storage layer implementation based on the
Berkeley DB (BDB) transactional database
system.<a href="#ftn.idm17102" class="footnote" id="idm17102"><sup class="footnote">[87]</sup></a> As the product matured, though, this
storage layer implementation was joined by—and then
outmatched by—another one, the FSFS backend which is used by
the vast majority of Subversion's repositories today. In
Subversion 1.8, the Subversion development community announced
that the BDB-based storage layer was being officially
deprecated.</p>
<p>This appendix presents some of the documentation about
administering BDB-backed repositories featured more prominently in
previous versions of this book.</p>
<div class="footnotes">
<br />
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<div id="ftn.idm17102" class="footnote">
<p><a href="#idm17102" class="para"><sup class="para">[87] </sup></a>Okay, strictly speaking, it used XML files
for starters. But that was never intended for public
release.</p>
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