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<p><a href="elma365-on-premises.html">BRIX On-Premises</a> &gt; <a href="elma365-enterprise.html">BRIX On-Premises Enterprise</a> / Data migration from embedded to external databases in BRIX Enterprise</p>
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<div class="topic__title"><h1 class="p_Heading1"><span class="f_Heading1">Data migration from embedded to external databases in BRIX Enterprise</span></h1>
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<p class="p_Normal">You can migrate data from databases within a Kubernetes cluster to external storages using:</p>
<ul style="list-style-type:disc">
<li class="p_Normal">External tools.</li><li class="p_Normal"><span style="font-weight: bold;">Elma365-Backupper</span> utility. Read more in the <a href="embedded-to-external-database-enterprise-backupper.html" class="topiclink">Data migration from embedded to external databases in BRIX Enterprise: customized utility</a> article.</li></ul>
<p class="p_Normal">The main steps of data migration by external tools:</p>
<ol style="list-style-type:decimal">
<li value="1" class="p_Normal"><a href="embedded-to-external-database-enterprise.html#preparation" class="topiclink">Prepare to data dump creation</a>.</li><li value="2" class="p_Normal"><a href="embedded-to-external-database-enterprise.html#dump" class="topiclink">Create a data dump</a>.</li><li value="3" class="p_Normal"><a href="embedded-to-external-database-enterprise.html#restore" class="topiclink">Restore data on external storage</a>.</li><li value="4" class="p_Normal"><a href="embedded-to-external-database-enterprise.html#update-parameters" class="topiclink">Update BRIX Enterprise application parameters</a>.</li></ol>
<p class="p_CodeExample" style="page-break-inside: avoid;"><span class="f_CodeExample">начало&nbsp;внимание</span></p>
<p class="p_Normal">After migrating databases to external storages, <a href="activate_on_premise.html" class="topiclink">system reactivation</a> is required.</p>
<p class="p_CodeExample" style="page-break-inside: avoid;"><span class="f_CodeExample">конец&nbsp;внимание</span></p>
<h2 class="p_Heading2"><a id="preparation" class="hmanchor"></a><span class="f_Heading2">Step 1: Prepare to data dump creation</span></h2>
<ol style="list-style-type:upper-roman">
<li value="1" class="p_Normal">First, install the<span style="font-weight: bold;"> jq</span> package.</li><li value="2" class="p_Normal">To access the databases within the cluster, forward the service ports:</li></ol>
<p class="p_CodeExample" style="white-space: normal; page-break-inside: avoid;"><span class="f_CodeExample">kubectl port-forward postgres-0 5432:5432 --address 0.0.0.0</span><br />
<span class="f_CodeExample">kubectl port-forward mongo-0 27017:27017 --address 0.0.0.0</span></p>
<ol style="list-style-type:upper-roman" start="3">
<li value="3" class="p_Normal">Get and save passwords for connecting to the databases:</li></ol>
<p class="p_CodeExample" style="white-space: normal; page-break-inside: avoid;"><span class="f_CodeExample">kubectl get secrets/elma365-db-connections -o json | jq '.data | map_values(@base64d)'</span></p>
<h2 class="p_Heading2"><a id="dump" class="hmanchor"></a><span class="f_Heading2">Step 2: Create a data dump</span></h2>
<ol style="list-style-type:upper-roman">
<li value="1" class="p_Normal">Generate a data dump file for PostgreSQL using the <span style="font-weight: bold;">pg_dump</span> utility:</li></ol>
<p class="p_CodeExample" style="white-space: normal; page-break-inside: avoid;"><span class="f_CodeExample">pg_dump -h localhost -p 5432 -U postgres elma365 -f /backup/&lt;backup-postgresql-folder-name&gt;</span></p>
<p class="p_Normal" style="margin: 0 0 0 32px;">Enter the password obtained in the first step.</p>
<ol style="list-style-type:upper-roman" start="2">
<li value="2" class="p_Normal">Generate a data dump file for MongoDB using the <span style="font-weight: bold;">mongodump</span> utility:</li></ol>
<p class="p_CodeExample" style="white-space: normal; page-break-inside: avoid;"><span class="f_CodeExample">mongodump --host localhost --port 27017 --db elma365 -u elma365 --out /backup/&lt;backup-mongodb-folder-name&gt;</span></p>
<p class="p_Normal" style="margin: 0 0 0 31px;">Enter the password obtained in the first step.</p>
<p class="p_Normal" style="margin: 0 0 0 30px;">Read more about these utilities in the <a href="dump_db.html" class="topiclink">External BRIX backup</a> article.</p>
<h2 class="p_Heading2"><a id="restore" class="hmanchor"></a><span class="f_Heading2">Step 3: Restore data on external storage</span></h2>
<ol style="list-style-type:upper-roman">
<li value="1" class="p_Normal">Restore from backup on empty databases and S3 storage. Clear them before restoration.</li><li value="2" class="p_Normal">Restore PostgreSQL data using the <span style="font-weight: bold;">psql</span> utility:</li></ol>
<p class="p_CodeExample" style="white-space: normal; page-break-inside: avoid;"><span class="f_CodeExample">psql -h &lt;external_db_host&gt; -p &lt;external_db_port&gt; -U &lt;username&gt; -d &lt;database_name&gt; -f /backup/&lt;backup-postgresql-folder-name&gt;</span></p>
<p class="p_Normal">Where:</p>
<ul style="list-style-type:disc">
<li class="p_Normal"><code><b>&lt;external_db_host&gt;</b></code>. The host of the external database.</li><li class="p_Normal"><code><b>&lt;external_db_port&gt;</b></code>. The port of the external database.</li><li class="p_Normal"><code><b>&lt;username&gt;</b></code>. The user name of the external database.</li><li class="p_Normal"><code><b>&lt;database_name&gt;</b></code>. The name of the database on the external server.</li></ul>
<ol style="list-style-type:upper-roman" start="3">
<li value="3" class="p_Normal">Restore MongoDB data using the <span style="font-weight: bold;">mongorestore</span> utility:</li></ol>
<p class="p_CodeExample" style="white-space: normal; page-break-inside: avoid;"><span class="f_CodeExample">mongorestore --host &lt;external_db_host&gt; --port 27017 --db &lt;database_name&gt; -u &lt;username&gt; --dir=/backup/&lt;backup-mongodb-folder-name&gt;</span></p>
<p class="p_Normal">Where:</p>
<ul style="list-style-type:disc">
<li class="p_Normal"><code><b>&lt;external_db_host&gt;</b></code>. The host of the external database.</li><li class="p_Normal"><code><b>&lt;username&gt;</b></code>. The user name of the external database.</li><li class="p_Normal"><code><b>&lt;database_name&gt;</b></code>. The name of the database on the external server.</li></ul>
<ol style="list-style-type:upper-roman" start="4">
<li value="4" class="p_Normal">Restore the S3 storage data using the <span style="font-weight: bold;">mc</span> utility:</li></ol>
<p class="p_CodeExample" style="white-space: normal; page-break-inside: avoid;"><span class="f_CodeExample">mc alias set &lt;alias_source&gt; &lt;s3-endpoint_source&gt; &lt;access-key_source&gt; &lt;secret-key_source&gt;</span><br />
<span class="f_CodeExample">mc alias set &lt;alias_destination&gt; &lt;s3-endpoint_destination&gt; &lt;access-key_destination&gt; &lt;secret-key_destination&gt;</span></p>
<p class="p_Normal">Where:</p>
<ul style="list-style-type:disc">
<li class="p_Normal"><code><b>&lt;alias_source&gt;</b></code>. The short name (alias) for the source.</li><li class="p_Normal"><code><b>&lt;s3-endpoint_source&gt;</b></code>. The address of the S3-compatible source storage.</li><li class="p_Normal"><code><b>&lt;access-key_source&gt;</b></code>. The access key for the source.</li><li class="p_Normal"><code><b>&lt;secret-key_source&gt;</b></code>. The secret key for the source.</li><li class="p_Normal"><code><b>&lt;alias_destination&gt;</b></code>. The short name (alias) for the destination.</li><li class="p_Normal"><code><b>&lt;s3-endpoint_destination&gt;</b></code>. The address of the S3-compatible destination storage.</li><li class="p_Normal"><code><b>&lt;access-key_destination&gt;</b></code>. The access key for the destination.</li><li class="p_Normal"><code><b>&lt;secret-key_destination&gt;</b></code>. The secret key for the destination.</li></ul>
<p class="p_Normal">Then copy the S3 storage from the source to the destination:</p>
<p class="p_CodeExample" style="white-space: normal; page-break-inside: avoid;"><span class="f_CodeExample">mc cp --recursive &lt;s3-endpoint_source&gt;/bucket-name/ &lt;s3-endpoint_destination&gt;/bucket-name/</span></p>
<p class="p_Normal">Where:</p>
<ul style="list-style-type:disc">
<li class="p_Normal"><code><b>&lt;alias_source&gt;</b></code>. The short name (alias) for the source.</li><li class="p_Normal"><code><b>&lt;alias_destination&gt;</b></code>. The short name (alias) for the destination.</li><li class="p_Normal"><code><b>bucket-name</b></code>. The bucket name.</li><li class="p_Normal"><code><b>--recursive</b></code>. Recursive copying of all objects and files.</li></ul>
<ol style="list-style-type:upper-roman" start="5">
<li value="5" class="p_Normal">After restoring the databases on external storage, <a href="activate_on_premise.html" class="topiclink">reactivate the system</a>.</li></ol>
<h2 class="p_Heading2"><a id="update-parameters" class="hmanchor"></a><span class="f_Heading2">Step 4: Update BRIX Enterprise application parameters</span></h2>
<ol style="list-style-type:upper-roman">
<li value="1" class="p_Normal">After restoring data on external databases, make sure that all tables for PostgreSQL or collections for MongoDB are migrated correctly.</li><li value="2" class="p_Normal">To configure the BRIX Enterprise application to use external databases, change the database and S3 file storage connection settings in the <code><b>values-elma365.yaml</b></code> configuration file.</li><li value="3" class="p_Normal">Update the BRIX application parameters using the <code><b>values-elma365.yaml</b></code> configuration file.</li></ol>
<p class="p_Normal"><a class="dropdown-toggle" style="font-style: normal; font-weight: normal; color: #000000; background-color: transparent; text-decoration: none;" href="javascript:HMToggle('toggle','TOGGLE0186A1')">Updating parameters via the Internet</a></p>
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<tr>
<td style="vertical-align:top; padding:0; border:none"><ol style="list-style-type:decimal">
<li value="1" class="p_Normal">Identify the version of the chart from which the BRIX application was installed or updated:</li></ol>
<p class="p_CodeExample" style="white-space: normal; page-break-inside: avoid;"><span class="f_CodeExample">helm show chart elma365/elma365</span></p>
<p class="p_Normal">&nbsp;<br />
Example of how to execute the command:</p>
<p class="p_Normal"><img alt="embedded-to-external-database-enterprise-1" width="417" height="141" style="margin:0;width:417px;height:141px;border:none" src="embedded-to-external-database-enterprise-1.png"/></p>
<p class="p_Normal">The chart version will be specified in the <code><b>version</b></code> string. Save this value for the next step.</p>
<ol style="list-style-type:decimal" start="2">
<li value="2" class="p_Normal">Update the BRIX application parameters using the <code><b>values-elma365.yaml</b></code> configuration file. To do this, use the following command, specifying the installed chart version for the <code><b>--version</b></code> key instead of <code><b>&lt;elma365-chart-version&gt;</b></code>:</li></ol>
<p class="p_CodeExample" style="white-space: normal; page-break-inside: avoid;"><span class="f_CodeExample">helm upgrade --install elma365 elma365/elma365 -f values-elma365.yaml --version &lt;elma365-chart-version&gt; --timeout=30m --wait [-n namespace]</span></p>
<p class="p_Normal">&nbsp;</p>
</td>
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<p class="p_Normal"><a class="dropdown-toggle" style="font-style: normal; font-weight: normal; color: #000000; background-color: transparent; text-decoration: none;" href="javascript:HMToggle('toggle','TOGGLE0186A2')">Updating parameters without the Internet connection</a></p>
<div id="TOGGLE0186A2" class="dropdown-toggle-body" style="text-align: left; text-indent: 0; line-height: 1.80; padding: 0 0 0 0; margin: 0 0 0 0;"><table style="border:none; border-spacing:0;">
<tr>
<td style="vertical-align:top; padding:0; border:none"><p class="p_Normal">&nbsp;<br />
Go to the folder with the downloaded BRIX chart and run the command:</p>
<p class="p_CodeExample" style="white-space: normal; page-break-inside: avoid;"><span class="f_CodeExample">helm upgrade --install elma365 ./elma365 -f values-elma365.yaml --timeout=30m --wait [-n namespace]</span></p>
<p class="p_Normal">&nbsp;<br />
The parameter upgrade takes 10-30 minutes. Wait for it to complete.</p>
<p class="p_Normal">&nbsp;</p>
</td>
</tr>
</table>
</div>
<ol style="list-style-type:upper-roman" start="4">
<li value="4" class="p_Normal">Restart all services with the command:</li></ol>
<p class="p_CodeExample" style="white-space: normal; page-break-inside: avoid;"><span class="f_CodeExample">kubectl rollout restart deploy [-n namespace]</span></p>
<ol style="list-style-type:upper-roman" start="5">
<li value="5" class="p_Normal">Verify the system is working correctly and stop old databases inside Kubernetes:</li></ol>
<p class="p_CodeExample" style="white-space: normal; page-break-inside: avoid;"><span class="f_CodeExample">kubectl scale statefulset &lt;db-type&gt; --replicas=0 [-n namespace]</span></p>
<p class="p_Normal">Where <code><b>&lt;db-type&gt;</b></code> is the name of the <span style="font-weight: bold;">StatefulSet</span>: <code><b>postgres</b></code>, <code><b>mongo</b></code>, or <code><b>minio</b></code>.</p>
<p class="p_Normal">&nbsp;</p>
<p class="p_Normal">&nbsp;</p>
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