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| <div class="section" id="traffic-ops-migrating-from-1-x-to-2-x"> |
| <span id="rl-ps"></span><span id="index-0"></span><h1>Traffic Ops - Migrating from 1.x to 2.x<a class="headerlink" href="#traffic-ops-migrating-from-1-x-to-2-x" title="Permalink to this headline">¶</a></h1> |
| <p>In Traffic Ops 2.x MySQL was removed and Postgres was replaced as the database of choice for the unforeseen future. A Docker-based migration tool was developed to |
| help with that conversion using an open source Postgres tool called <a class="reference external" href="http://pgloader.io/">pgloader</a>. The following instructions will help configuring the Migration tool</p> |
| <div class="section" id="system-requirements"> |
| <h2>System Requirements<a class="headerlink" href="#system-requirements" title="Permalink to this headline">¶</a></h2> |
| <p>The user must have the following for a successful minimal install:</p> |
| <ul class="simple"> |
| <li>CentOS 7.2+</li> |
| <li>Docker installed (this migration was tested against version <strong>docker-engine-selinux-17.05.0.ce-1.el7.centos.noarch.rpm</strong>)</li> |
| <li>Postgres has been installed according to <a class="reference internal" href="installation.html#rl-to-install"><span class="std std-ref">Traffic Ops - Installing</span></a></li> |
| </ul> |
| </div> |
| <div class="section" id="setup-the-traffic-ops-db-directory"> |
| <h2>Setup the traffic_ops_db directory<a class="headerlink" href="#setup-the-traffic-ops-db-directory" title="Permalink to this headline">¶</a></h2> |
| <blockquote> |
| <div><p>Modify /opt dir permission to make it writable and owned by postgres:postgres</p> |
| <div class="highlight-default"><div class="highlight"><pre><span></span>$ sudo chmod 755 /opt |
| </pre></div> |
| </div> |
| <p>Download the Traffic Control tarball for 2.0.0</p> |
| <div class="highlight-default"><div class="highlight"><pre><span></span>$ cd /opt |
| $ wget https://dist.apache.org/repos/dist/release/incubator/trafficcontrol/<tarball_version> |
| </pre></div> |
| </div> |
| <p>Extract the <strong>traffic_ops_db</strong> dir to <strong>/opt/traffic_ops_db</strong></p> |
| <div class="highlight-default"><div class="highlight"><pre><span></span>$ tar -zxvf trafficcontrol-incubating-<version>.tar.gz --strip=1 trafficcontrol-incubating-<version>/traffic_ops_db |
| $ sudo chown -R postgres:postgres /opt/traffic_ops_db |
| </pre></div> |
| </div> |
| </div></blockquote> |
| </div> |
| <div class="section" id="migration-preparation"> |
| <h2>Migration Preparation<a class="headerlink" href="#migration-preparation" title="Permalink to this headline">¶</a></h2> |
| <p>Be sure there is connectivity between your MySQL server’s IP address/port and your Postgres server’s IP address/port.</p> |
| </div> |
| <div class="section" id="navigating-the-database-migration"> |
| <h2>Navigating the Database Migration<a class="headerlink" href="#navigating-the-database-migration" title="Permalink to this headline">¶</a></h2> |
| <p>Begin the database migration after settings up the <strong>/opt/traffic_ops_db</strong> directory</p> |
| <blockquote> |
| <div><p>Switch to the postgres user so permissions stay intact.</p> |
| <div class="highlight-none"><div class="highlight"><pre><span></span>$ su - postgres |
| $ cd /opt/traffic_ops_db/ |
| </pre></div> |
| </div> |
| </div></blockquote> |
| <ol class="arabic"> |
| <li><p class="first">Configure the <strong>/opt/traffic_ops_db/pg-migration/mysql-to-postgres.env</strong> migration for your source MySQL and target Postgres settings</p> |
| </li> |
| <li><p class="first">Run the migration, watch the console output for any errors (it may take some time)</p> |
| <div class="highlight-none"><div class="highlight"><pre><span></span>$ ./migrate.sh |
| </pre></div> |
| </div> |
| </li> |
| </ol> |
| <blockquote> |
| <div>Your MySQL data should now be ported into your new instance of Postgres!</div></blockquote> |
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