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<div class="document" id="mysql-backend">
<h1 class="title">MySQL Backend</h1>
<table class="docinfo" frame="void" rules="none">
<col class="docinfo-name" />
<col class="docinfo-content" />
<tbody valign="top">
<tr><th class="docinfo-name">Version:</th>
<td>$Revision$</td></tr>
</tbody>
</table>
<p>This notes detail the MySQL backend for the Roundup issue tracker.</p>
<div class="section">
<h1><a id="prerequisites" name="prerequisites">Prerequisites</a></h1>
<p>To use MySQL as the backend for storing roundup data, you also need
to install:</p>
<ol class="arabic simple">
<li>MySQL RDBMS 4.0.16 or higher - <a class="reference" href="http://www.mysql.com">http://www.mysql.com</a>. Your MySQL
installation MUST support InnoDB tables (or Berkeley DB (BDB) tables
if you have no other choice). If you're running < 4.0.16 (but not <4.0)
then you'll need to use BDB to pass all unit tests. Edit the
<tt class="docutils literal"><span class="pre">roundup/backends/back_mysql.py</span></tt> file to enable DBD instead of InnoDB.</li>
<li>Python MySQL interface - <a class="reference" href="http://sourceforge.net/projects/mysql-python">http://sourceforge.net/projects/mysql-python</a></li>
</ol>
<div class="note">
<p class="first admonition-title">Note</p>
<p class="last">The InnoDB implementation has a <a class="reference" href="http://bugs.mysql.com/bug.php?id=1810">bug</a> that Roundup tickles. See</p>
</div>
</div>
<div class="section">
<h1><a id="running-the-mysql-tests" name="running-the-mysql-tests">Running the MySQL tests</a></h1>
<p>Roundup tests expect an empty MySQL database. Two alternate ways to provide
this:</p>
<ol class="arabic">
<li><p class="first">If you have root permissions on the MySQL server, you can create
the necessary database entries using the follwing SQL sequence. Use
<tt class="docutils literal"><span class="pre">mysql</span></tt> on the command line to enter:</p>
<pre class="literal-block">
CREATE DATABASE rounduptest;
USE rounduptest;
GRANT ALL PRIVILEGES ON rounduptest.* TO rounduptest@localhost
IDENTIFIED BY 'rounduptest';
FLUSH PRIVILEGES;
</pre>
</li>
<li><p class="first">If your administrator has provided you with database connection info,
you can modify MYSQL_* constants in the file test/test_db.py with
the correct values.</p>
</li>
</ol>
<p>The MySQL database should not contain any tables. Tests will not
drop the database with existing data.</p>
</div>
<div class="section">
<h1><a id="showing-mysql-who-s-boss" name="showing-mysql-who-s-boss">Showing MySQL who's boss</a></h1>
<p>If things ever get to the point where that test database is totally hosed,
just:</p>
<pre class="literal-block">
$ su -
# /etc/init.d/mysql stop
# rm -rf /var/lib/mysql/rounduptest
# /etc/init.d/mysql start
</pre>
<p>and all will be better (note that on some systems, <tt class="docutils literal"><span class="pre">mysql</span></tt> is spelt
<tt class="docutils literal"><span class="pre">mysqld</span></tt>).</p>
</div>
</div>
<div class="footer">
<hr class="footer" />
Generated on: 2006-08-09.
</div>
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