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&nbsp;&nbsp;//&nbsp;&nbsp;<a href="./index.html">Document Index</a></div><h1 id="upgrade-sogo-sql-schema">Upgrade SOGo SQL schema</h1>
<p>With default SOGo settings in iRedMail-0.9.5-1 and earlier releases, SOGo will
create 3 SQL tables for each user, this introduces some issues:</p>
<ul>
<li>Your <code>sogo</code> database will contains lots of sql tables.</li>
<li>MySQL limits the table name to 64 characters, if your email address is long,
SOGo cannot create required table for you. Related bug report in SOGo bug
tracker: <a href="https://sogo.nu/bugs/view.php?id=3447">https://sogo.nu/bugs/view.php?id=3447</a></li>
</ul>
<p>We need few steps to migrate SOGo to use 9 SQL tables in total instead of
creating 3 tables for each user. This solution was first introduced in
SOGo-3.0.0.</p>
<div class="admonition warning">
<p class="admonition-title">Warning and Disclaimer</p>
<p>It's strongly recommended to try steps below on a testing machine BEFORE
you do it in production, we (iRedMail team) don't take any responsibility
for data lose. You have been warned.</p>
</div>
<ul>
<li>
<p><strong>BACKUP BACKUP BACKUP!!!</strong></p>
<p>Backup all SOGo data before you try any commands mentioned in this tutorial,
including SOGo database, and config file (<code>/etc/sogo/sogo.conf</code> on
Linux/OpenBSD, <code>/usr/local/etc/sogo/sogo.conf</code> on FreeBSD).</p>
</li>
<li>
<p>Stop SOGo service.</p>
</li>
<li>Stop memcached service.</li>
<li>Convert old data to new format by running one shell script shipped in SOGo
package. You can find it with the package management tool like
<code>rpm -ql sogo | grep 'combined'</code> on (RHEL/CentOS),
<code>dpkg -L sogo | grep 'combined'</code> on Debian/Ubuntu, etc.
Below is sample output on CentOS:</li>
</ul>
<pre><code># rpm -ql sogo | grep 'combined'
/usr/share/doc/sogo-3.1.5.20160928/sql-update-3.0.0-to-combined-mysql.sh
/usr/share/doc/sogo-3.1.5.20160928/sql-update-3.0.0-to-combined.sh
</code></pre>
<p>If you are running iRedMail with OpenLDAP or MySQL/MariaDB backend, you need
the first one with <code>mysql</code> in file name: <code>sql-update-3.0.0-to-combined-mysql.sh</code>,
if you are running iRedMail with PostgreSQL backend, you need the second one
(<code>sql-update-3.0.0-to-combined.sh</code>). We use MySQL one for example.</p>
<p>Now run the script as root user (or with <code>sudo</code>):</p>
<pre><code>bash /usr/share/doc/sogo-3.1.5.20160928/sql-update-3.0.0-to-combined-mysql.sh
</code></pre>
<ul>
<li>
<p>Open <code>/etc/sogo/sogo.conf</code>, make sure you have 3 NEW parameters:</p>
<ul>
<li><code>OCSCacheFolderURL</code></li>
<li><code>OCSStoreURL</code></li>
<li><code>OCSAclURL</code></li>
</ul>
<p>If you don't have them after running above command, add them manually
like below (please use the correct SQL username and password):</p>
</li>
</ul>
<pre><code>OCSCacheFolderURL = &quot;mysql://sogo:&lt;password&gt;@127.0.0.1:3306/sogo/sogo_cache_folder&quot;;
OCSStoreURL = &quot;mysql://sogo:&lt;password&gt;@127.0.0.1:3306/sogo/sogo_store&quot;;
OCSAclURL = &quot;mysql://sogo:&lt;password&gt;@127.0.0.1:3306/sogo/sogo_acl&quot;;
</code></pre>
<ul>
<li>Start memcached service.</li>
<li>
<p>Start SOGo service. SOGo will create new SQL tables as defined in above new
parameters:</p>
<ul>
<li><code>sogo_cache_folder</code></li>
<li><code>sogo_store</code></li>
<li><code>sogo_acl</code></li>
</ul>
</li>
<li>
<p>Login to SOGo webmail, make sure no data lost.</p>
</li>
</ul>
<p>If there's something wrong, please check SOGo log file (<code>/var/log/sogo/sogo.log</code>)
to see whether or not it reports some error. Report errors, issues, questions
in our online support forum: <a href="https://forum.iredmail.org/">https://forum.iredmail.org/</a>.</p><div class="footer">
<p style="text-align: center; color: grey;">All documents are available in <a href="https://github.com/iredmail/docs/">GitHub repository</a>, and published under <a href="http://creativecommons.org/licenses/by-nd/3.0/us/" target="_blank">Creative Commons</a> license. You can <a href="https://github.com/iredmail/docs/archive/master.zip">download the latest version</a> for offline reading. If you found something wrong, please do <a href="https://www.iredmail.org/contact.html">contact us</a> to fix it.</p>
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