forked from docs/doc-exports
Yang, Tong
2195db241c
Reviewed-by: Pruthi, Vineet <vineet.pruthi@t-systems.com> Reviewed-by: Rechenburg, Matthias <matthias.rechenburg@t-systems.com> Co-authored-by: Yang, Tong <yangtong2@huawei.com> Co-committed-by: Yang, Tong <yangtong2@huawei.com>
50 lines
11 KiB
HTML
50 lines
11 KiB
HTML
<a name="admin_guide_000343"></a><a name="admin_guide_000343"></a>
|
|
|
|
<h1 class="topictitle1">Backing Up CDL Data</h1>
|
|
<div id="body0000001534831422"><div class="section" id="admin_guide_000343__sbf7de999ef6f4ec7ada122bb4f6bbc39"><h4 class="sectiontitle">Scenario</h4><p id="admin_guide_000343__p03412431604">To ensure CDL service data security routinely or before a major operation on CDL (such as upgrade or migration), you need to back up CDL data. The backup data can be used to recover the system if an exception occurs or the operation has not achieved the expected result, minimizing the adverse impacts on services.</p>
|
|
<p id="admin_guide_000343__en-us_topic_0046736764_p49571392">CDL data is stored in DBService and Kafka. You can create DBService and Kafka backup tasks on <span id="admin_guide_000343__text67509419010">MRS</span> Manager to back up CDL data. Both automatic and manual backup tasks are supported.</p>
|
|
</div>
|
|
<div class="section" id="admin_guide_000343__s1b2b090a07e447b58ba4e60370d64404"><h4 class="sectiontitle">Prerequisites</h4><ul id="admin_guide_000343__ube9a3e31e3214e57ade6488b9708e3c5"><li id="admin_guide_000343__lf3c3f51380734b469b9ab66e4015777c">If data needs to be backed up to the remote HDFS, you have prepared a standby cluster for data backup. The authentication mode of the standby cluster is the same as that of the active cluster. For other backup modes, you do not need to prepare the standby cluster.</li><li id="admin_guide_000343__l6b2ccbf0a54a4d7994c8b888340d4fc3">If the active cluster is deployed in security mode and the active and standby clusters are not managed by the same <span id="admin_guide_000343__text1966432121415">MRS</span> Manager, mutual trust has been configured. For details, see <a href="admin_guide_000177.html">Configuring Cross-Manager Mutual Trust Between Clusters</a>. If the active cluster is deployed in normal mode, no mutual trust is required.</li><li id="admin_guide_000343__lfde42b9aa55947f79d6253ef3ddd298b">Cross-cluster replication has been configured for the active and standby clusters. For details, see <a href="admin_guide_000200.html">Enabling Cross-Cluster Replication</a>.</li><li id="admin_guide_000343__lb80a243195ff415bb79d73f765e4982c">Time is consistent between the active and standby clusters and the NTP services on the active and standby clusters use the same time source.</li><li id="admin_guide_000343__le9ac0667a43d455fa6c4b811935ad455">The backup type, period, policy, and other specifications have been planned based on the service requirements and you have checked whether <em id="admin_guide_000343__i105322021111010">Data storage path</em><strong id="admin_guide_000343__b1953912171018">/LocalBackup/</strong> has sufficient space on the active and standby management nodes.</li><li id="admin_guide_000343__li9837811115617">If you want to back up data to NAS, you have deployed the NAS server in advance.</li><li id="admin_guide_000343__li107784143346">If you want to back up data to OBS, you have connected the current cluster to OBS and have the permission to access OBS. </li></ul>
|
|
</div>
|
|
<div class="section" id="admin_guide_000343__section05601932135811"><h4 class="sectiontitle">Procedure</h4><ol id="admin_guide_000343__ol885566615256"><li id="admin_guide_000343__li514247915256"><span>On <span id="admin_guide_000343__text116761633151413">MRS</span> Manager, choose <strong id="admin_guide_000343__b1099115410104">O&M</strong> > <strong id="admin_guide_000343__b49982541105">Backup and Restoration</strong> > <strong id="admin_guide_000343__b9999195415104">Backup Management</strong>.</span></li><li id="admin_guide_000343__li1388766715256"><span>Click <strong id="admin_guide_000343__b198994220442620">Create</strong>.</span></li><li id="admin_guide_000343__li5788013915256"><span>Set <strong id="admin_guide_000343__b119459341117">Name</strong> to the name of the backup task.</span></li><li id="admin_guide_000343__li56869192288"><span>Select the cluster to be operated from <strong id="admin_guide_000343__b157145619142620">Backup Object</strong>.</span></li><li id="admin_guide_000343__li1759563715256"><span>Set <strong id="admin_guide_000343__b20150163618143">Mode</strong> to the type of the backup task.</span><p><p id="admin_guide_000343__en-us_topic_0165590410_p226614614816"><strong id="admin_guide_000343__b167861440131416">Periodic</strong> indicates that the backup task is executed by the system periodically. <strong id="admin_guide_000343__b1779334017141">Manual</strong> indicates that the backup task is executed manually.</p>
|
|
|
|
<div class="tablenoborder"><table cellpadding="4" cellspacing="0" summary="" id="admin_guide_000343__en-us_topic_0165590410_table193081738154917" frame="border" border="1" rules="all"><caption><b>Table 1 </b>Periodic backup parameters</caption><thead align="left"><tr id="admin_guide_000343__en-us_topic_0165590410_row430813818490"><th align="left" class="cellrowborder" valign="top" width="21.84%" id="mcps1.3.3.2.5.2.2.2.3.1.1"><p id="admin_guide_000343__en-us_topic_0165590410_p113081938184918">Parameter</p>
|
|
</th>
|
|
<th align="left" class="cellrowborder" valign="top" width="78.16%" id="mcps1.3.3.2.5.2.2.2.3.1.2"><p id="admin_guide_000343__en-us_topic_0165590410_p173081538114915">Description</p>
|
|
</th>
|
|
</tr>
|
|
</thead>
|
|
<tbody><tr id="admin_guide_000343__en-us_topic_0165590410_row18308838144917"><td class="cellrowborder" valign="top" width="21.84%" headers="mcps1.3.3.2.5.2.2.2.3.1.1 "><p id="admin_guide_000343__en-us_topic_0165590410_p030893804920">Started</p>
|
|
</td>
|
|
<td class="cellrowborder" valign="top" width="78.16%" headers="mcps1.3.3.2.5.2.2.2.3.1.2 "><p id="admin_guide_000343__en-us_topic_0165590410_p103081838144917">Indicates the time when the task is started for the first time.</p>
|
|
</td>
|
|
</tr>
|
|
<tr id="admin_guide_000343__en-us_topic_0165590410_row1530813813494"><td class="cellrowborder" valign="top" width="21.84%" headers="mcps1.3.3.2.5.2.2.2.3.1.1 "><p id="admin_guide_000343__en-us_topic_0165590410_p1930833815494">Period</p>
|
|
</td>
|
|
<td class="cellrowborder" valign="top" width="78.16%" headers="mcps1.3.3.2.5.2.2.2.3.1.2 "><p id="admin_guide_000343__en-us_topic_0165590410_p7308183834918">Indicates the task execution interval. The options include <strong id="admin_guide_000343__b13020431514">Hours</strong> and <strong id="admin_guide_000343__b1331013471510">Days</strong>.</p>
|
|
</td>
|
|
</tr>
|
|
<tr id="admin_guide_000343__en-us_topic_0165590410_row7308103810493"><td class="cellrowborder" valign="top" width="21.84%" headers="mcps1.3.3.2.5.2.2.2.3.1.1 "><p id="admin_guide_000343__en-us_topic_0165590410_p16308153834910">Backup Policy</p>
|
|
</td>
|
|
<td class="cellrowborder" valign="top" width="78.16%" headers="mcps1.3.3.2.5.2.2.2.3.1.2 "><ul id="admin_guide_000343__en-us_topic_0165590410_ul17277134745017"><li id="admin_guide_000343__en-us_topic_0165590410_li7277247105018"><strong id="admin_guide_000343__b6129449162717">Full backup at the first time and incremental backup subsequently</strong></li><li id="admin_guide_000343__en-us_topic_0165590410_li0512161105112"><strong id="admin_guide_000343__b36631252142710">Full backup every time</strong></li><li id="admin_guide_000343__en-us_topic_0165590410_li10673122011516"><strong id="admin_guide_000343__b146416568273">Full backup once every n times</strong></li></ul>
|
|
<div class="note" id="admin_guide_000343__en-us_topic_0165590410_note181551254522"><span class="notetitle"> NOTE: </span><div class="notebody"><ul id="admin_guide_000343__en-us_topic_0165590410_ul61731492817"><li id="admin_guide_000343__en-us_topic_0165590410_li161733452817">Incremental backup is not supported when Manager data and component metadata are backed up. Only <strong id="admin_guide_000343__b71731216161518">Full backup every time</strong> is supported.</li><li id="admin_guide_000343__en-us_topic_0165590410_li1074775142813">If <strong id="admin_guide_000343__b197501624141514">Path Type</strong> is set to <strong id="admin_guide_000343__b17757124161511">NFS</strong> or <strong id="admin_guide_000343__b11757112491512">CIFS</strong>, incremental backup cannot be used. When incremental backup is used for NFS or CIFS backup, the latest full backup data is updated each time the incremental backup is performed. Therefore, no new recovery point is generated.</li></ul>
|
|
</div></div>
|
|
</td>
|
|
</tr>
|
|
</tbody>
|
|
</table>
|
|
</div>
|
|
</p></li><li id="admin_guide_000343__li2414301115256"><span>Set <strong id="admin_guide_000343__b13775157141613">Configuration</strong> to <strong id="admin_guide_000343__b20783197101610">DBService</strong> and <strong id="admin_guide_000343__b27844713166">Kafka</strong>.</span><p><div class="note" id="admin_guide_000343__note19296173343310"><img src="public_sys-resources/note_3.0-en-us.png"><span class="notetitle"> </span><div class="notebody"><p id="admin_guide_000343__p1129723317334">If there are multiple DBService or Kafka services, all DBService or Kafka services are backed up by default. You can click <strong id="admin_guide_000343__b755192351617">Assign Service</strong> to specify the services to be backed up.</p>
|
|
</div></div>
|
|
</p></li><li id="admin_guide_000343__li4457996415256"><span>Set <strong id="admin_guide_000343__b101424714110516">Path Type</strong> of <strong id="admin_guide_000343__b167276608010516">DBService</strong> to a backup directory type. For details about how to set the parameters, see <a href="admin_guide_000349.html#admin_guide_000349__li4457996415256">7</a>.</span></li><li id="admin_guide_000343__li11268033151016"><span>Set <strong id="admin_guide_000343__b206695516710516">Path Type</strong> of <strong id="admin_guide_000343__b69343047010516">Kafka</strong> to a backup directory type. For details about how to set the parameters, see <a href="admin_guide_000203.html#admin_guide_000203__li4457996415256">7</a>.</span></li><li id="admin_guide_000343__li6567536315256"><span>Click <strong id="admin_guide_000343__b123813679914911">OK</strong>.</span></li><li id="admin_guide_000343__li3081012415256"><span>In the <strong id="admin_guide_000343__b436641471817">Operation</strong> column of the created task in the backup task list, click <strong id="admin_guide_000343__b837401451817">More</strong> and select <strong id="admin_guide_000343__b93751014121818">Back Up Now</strong> to execute the backup task.</span><p><p id="admin_guide_000343__p5715636459">After the backup task is executed, the system automatically creates a subdirectory for each backup task in the backup directory. The format of the subdirectory name is <em id="admin_guide_000343__i39593708910516">Backup task name</em><strong id="admin_guide_000343__b10747487410516">_</strong><em id="admin_guide_000343__i181290514610516">Task creation time</em>, and the subdirectory is used to save data source backup files.</p>
|
|
<p id="admin_guide_000343__ab1ce28c122084e08bf166362836a4c3d">The format of the backup file name is <em id="admin_guide_000343__i208584006710516">Version</em><strong id="admin_guide_000343__b127683017410516">_</strong><em id="admin_guide_000343__i212545157810516">Data source</em><strong id="admin_guide_000343__b201213425810516">_</strong><em id="admin_guide_000343__i27661009610516">Task execution time</em><strong id="admin_guide_000343__b19213003210516">.tar.gz</strong>.</p>
|
|
</p></li></ol>
|
|
</div>
|
|
</div>
|
|
<div>
|
|
<div class="familylinks">
|
|
<div class="parentlink"><strong>Parent topic:</strong> <a href="admin_guide_000201.html">Backing Up Data</a></div>
|
|
</div>
|
|
</div>
|
|
|