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<h3 class="title-container">Upgrading HAWQ and Components</h3>
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<!-- Python script replaces main content -->
<div id ="main"><div style="visibility:hidden; height:2px;">Pivotal Product Documentation : Upgrading HAWQ and Components</div><div class="wiki-content group" id="main-content">
<p>This section describes how to upgrade HAWQ and its components.</p><p><style type="text/css">/*<![CDATA[*/
div.rbtoc1400035791211 {padding: 0px;}
div.rbtoc1400035791211 ul {list-style: disc;margin-left: 0px;}
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/*]]>*/</style><div class="toc-macro rbtoc1400035791211">
<ul class="toc-indentation">
<li><a href="#UpgradingHAWQandComponents-UpgradingHAWQ">Upgrading HAWQ</a>
<ul class="toc-indentation">
<li><a href="#UpgradingHAWQandComponents-PreparingtoUpgradeHAWQ">Preparing to Upgrade HAWQ</a></li>
<li><a href="#UpgradingHAWQandComponents-UpgradingtoHAWQ1.2.0.0">Upgrading to HAWQ 1.2.0.0</a></li>
</ul>
</li>
<li><a href="#UpgradingHAWQandComponents-UpgradingtheComponents">Upgrading the Components </a>
<ul class="toc-indentation">
<li><a href="#UpgradingHAWQandComponents-PrerequisitesforUpgradingMADlib">Prerequisites for Upgrading MADlib</a></li>
<li><a href="#UpgradingHAWQandComponents-UpgradingMADlibonHAWQ1.2.0.0">Upgrading MADlib on HAWQ 1.2.0.0</a></li>
</ul>
</li>
<li><a href="#UpgradingHAWQandComponents-TroubleshootingaFailedUpgrade">Troubleshooting a Failed Upgrade</a></li>
</ul>
</div></p><h2 id="UpgradingHAWQandComponents-UpgradingHAWQ">Upgrading HAWQ</h2><p>The upgrade path supported for this release is HAWQ 1.1.x to HAWQ 1.2.0.0. Pivotal recommends that you use the ICM to upgrade your HAWQ system from 1.1.x to 1.2.0.0.</p> <div class="aui-message warning shadowed information-macro">
<p class="title">Notes</p>
<span class="aui-icon icon-warning">Icon</span>
<div class="message-content">
<ul><li>Pivotal recommends that you back up any existing data before upgrading to HAWQ1.2.0.0</li><li>Follow these instructions if you installed HAWQ manually. To upgrade PHD Manager, see the <em>Pivotal HD Enterprise 2.0 Installation and Administration Guide</em>.</li></ul>
</div>
</div>
<h3 id="UpgradingHAWQandComponents-PreparingtoUpgradeHAWQ">Preparing to Upgrade HAWQ</h3><p>Perform these steps on your current HAWQ system. This procedure is performed from your HAWQ master host and should be executed by the HAWQ superuser (gpadmin).</p><ol><li>Log in to the HAWQ master as the gpadmin user</li><li><p>(<em>optional</em> ) Vacuum all databases prior to upgrade. </p></li><li><p>(<em>optional</em> ) Clean out old server log files from your master and segment data directories.</p> <div class="aui-message warning shadowed information-macro">
<p class="title">Note</p>
<span class="aui-icon icon-warning">Icon</span>
<div class="message-content">
<p>Running Vacuum and cleaning out old logs files is not required, but it will reduce the size of HAWQ files to be backed up and migrated.</p>
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</li><li>Run gpstate to check for failed segments. If you have failed segments, you must recover them using gprecoverseg before you can upgrade.</li><li>Copy or preserve any additional folders or files (such as backup folders) that you have added in the HAWQ data directories or $GPHOME directory. Only files or folders strictly related to HAWQ operations are preserved by the migration utility.</li></ol><h3 id="UpgradingHAWQandComponents-UpgradingtoHAWQ1.2.0.0">Upgrading to HAWQ 1.2.0.0</h3><p>An upgrade from HAWQ 1.1.x to HAWQ 1.2.0.0 involves stopping HAWQ, updating the HAWQ software binaries, and restarting HAWQ.</p><ol><li><p>Log in to your HAWQ master host as the HAWQ administrative user:</p><div class="code panel pdl" style="border-width: 1px;"><div class="codeContent panelContent pdl">
<pre class="theme: Confluence; brush: java; gutter: false" style="font-size:12px;">$ su - gpadmin</pre>
</div></div></li><li><p>Perform a smart shutdown of your current HAWQ 1.1.x system (shut down all active connections to the database):</p><div class="code panel pdl" style="border-width: 1px;"><div class="codeContent panelContent pdl">
<pre class="theme: Confluence; brush: java; gutter: false" style="font-size:12px;">$ gpstop</pre>
</div></div></li><li><p>Run the installer for 1.2.0.0 on the HAWQ master host using rpm. This installs HAWQ to /usr/local/hawq-1.2.0.0 alongside any older versions, and it will point a soft link from /usr/local/hawq to /usr/local/hawq-1.2.0.0</p><div class="code panel pdl" style="border-width: 1px;"><div class="codeContent panelContent pdl">
<pre class="theme: Confluence; brush: java; gutter: false" style="font-size:12px;">$ su - root # rpm -ivh hawq-1.2.0.0.x86_64.rpm --force</pre>
</div></div></li><li><p>Run the following command to install the HAWQ 1.2.0.0 binaries on all the hosts specified in the <em>hostfile</em> :</p><div class="code panel pdl" style="border-width: 1px;"><div class="codeContent panelContent pdl">
<pre class="theme: Confluence; brush: java; gutter: false" style="font-size:12px;"># gpssh -f hostfile -e "rpm -ivh hawq-1.2.0.0.x86_64.rpm --force"</pre>
</div></div></li><li><p>After all segment hosts have been upgraded, you can log in as gpadmin user and restart your HAWQ system:</p><div class="code panel pdl" style="border-width: 1px;"><div class="codeContent panelContent pdl">
<pre class="theme: Confluence; brush: java; gutter: false" style="font-size:12px;">$ su - gpadmin
$ gpstart</pre>
</div></div></li></ol><h2 id="UpgradingHAWQandComponents-UpgradingtheComponents">Upgrading the Components </h2><p>This section describes how you can upgrade components such as MADlib, PL/R, pgcrypto, and PL/Java.</p><div class="aui-message warning shadowed information-macro"><div class="message-content"><p>If you have previously installed versions of PL/R, and pgcrypto packages, then you must download newer binary compatible version of these packages from Pivotal. You will then need to re-install the newer binaries. See [<a href="InstallingtheHAWQComponents.html">#Installing Cryptographic Functions for PostgreSQL </a>for instructions.</p></div></div><p> PL/Java is a new component, therefore if you are installing PL/Java as a part of the upgrade or expansion process, then make sure you have carried out steps as described in the chapter, <em>Expanding your HAWQ System</em>, in the <em>HAWQ Administrator Guide</em>.</p><h3 id="UpgradingHAWQandComponents-PrerequisitesforUpgradingMADlib">Prerequisites for Upgrading MADlib</h3><ol><li>Ensure that you have upgraded PHD 1.1 to PHD 2.0.</li><li><p>Ensure that HAWQ 1.2.0.0 is installed on all nodes.</p><p>During a HAWQ upgrade to 1.2, the gpmigrator script drops the built-in MADlib objects (functions, aggregates, and types). If you have user defined (UDF) objects that depend on these Madlib objects, then the gpmigrator script detects direct or indirect dependencies in all the databases and creates a log. To proceed with the migration:</p></li></ol><ol><li style="margin-left: 30.0px;">Backup the data.</li><li style="margin-left: 30.0px;">Drop all UDFs before resuming the migration process.</li></ol><h3 id="UpgradingHAWQandComponents-UpgradingMADlibonHAWQ1.2.0.0">Upgrading MADlib on HAWQ 1.2.0.0</h3><ol><li><p>Log in to your HAWQ master host as the HAWQ administrative user: </p></li><li>To check for Madlib dependencies, set the environment variables: <code>PGPORT</code>(<code>default=5432</code>), <code>PGUSER</code>(default=current logged on user),<code> PGHOST(default=localhost)</code> and <code>PGPASSWORD</code> (If empty, the script will prompt for a password)</li><li>Run <code>gpmigrator SOURCE_VERSION_GPHOME TARGET_VERSION_GPHOME</code></li><li>If there are user defined objects that depend on Madlib functionality, then the script will detect these and halt. Take appropriate action to remove these dependencies.</li></ol><p style="margin-left: 30.0px;">When the gpmigrator reports success, the new HAWQ database will be up and running. The gpmigrator script backs up the original catalog and restores it in case of failures. This leaves the database in a usable state.</p><h2 id="UpgradingHAWQandComponents-TroubleshootingaFailedUpgrade">Troubleshooting a Failed Upgrade</h2><p align="LEFT">If you experience issues during the migration process, go to the Support page at Support Zone or contact Pivotal customer support at one of the following numbers:</p><ul><li>United States: 800-782-4362 (1-800-SVC-4EMC)</li><li>Canada: 800-543-4782</li><li>Worldwide: +1-508-497-7901</li></ul><p align="LEFT">Be prepared to provide the following information:</p><ul><li>A detailed list of upgrade procedures completed.</li><li>Log output from gpmigrator (located in ~/gpAdminLogs).</li></ul>
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