2011-09-13 17:44:24 +00:00
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<title>Queue access method</title>
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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_2_toc.html" title="Chapter 8. Upgrading Berkeley DB 4.1 applications to Berkeley DB 4.2" />
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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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<tr>
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<th colspan="3" align="center">Queue access method</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_2_java.html">Prev</a> </td>
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<th width="60%" align="center">Chapter 8. Upgrading Berkeley DB 4.1 applications to Berkeley DB 4.2</th>
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<td width="20%" align="right"> <a accesskey="n" href="upgrade_4_2_cksum.html">Next</a></td>
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<div>
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<h2 class="title" style="clear: both"><a id="upgrade_4_2_queue"></a>Queue access method</h2>
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</div>
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</div>
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</div>
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<p>We have discovered a problem where applications that specify Berkeley DB's
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encryption or data checksum features on Queue databases with extent
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files, the database data will not be protected. This is obviously a
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security problem, and we encourage you to upgrade these applications to
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the 4.2 release as soon as possible.</p>
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<p>The Queue databases must be dumped and reloaded in order to fix this
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problem. First build the Berkeley DB 4.2 release, then use your previous
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release to dump the database, and the 4.2 release to reload the
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database. For example:</p>
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<pre class="programlisting">db-4.1.25/db_dump -P password -k database | \
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db-4.2.xx/db_load -P password new_database</pre>
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<p>Note this is <span class="bold"><strong>only</strong></span> necessary for Queue access method databases,
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where extent files were configured along with either encryption or
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checksums.</p>
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<td width="40%" align="left" valign="top">Java </td>
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<td width="40%" align="right" valign="top"> DB_CHKSUM_SHA1</td>
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