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yangtong
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Reviewed-by: Pruthi, Vineet <vineet.pruthi@t-systems.com> Co-authored-by: yangtong <yangtong2@huawei.com> Co-committed-by: yangtong <yangtong2@huawei.com>
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81 lines
21 KiB
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<a name="admin_guide_000423"></a><a name="admin_guide_000423"></a>
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<h1 class="topictitle1">Backing Up Doris Data</h1>
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<div id="body0000002413517005"><div class="section" id="admin_guide_000423__en-us_topic_0000001819415328_section2852132524811"><h4 class="sectiontitle">Scenario</h4><p id="admin_guide_000423__en-us_topic_0000001819415328_en-us_topic_0046736768_p59259929">To ensure Doris service data security, you need to back up Doris service data especially before you perform a major operation on Doris (such as upgrade or migration). 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>
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<p id="admin_guide_000423__en-us_topic_0000001819415328_en-us_topic_0046736768_p63577317">You can create automatic or manual tasks on Manager to back up Doris data.</p>
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<div class="note" id="admin_guide_000423__note124686413586"><img src="public_sys-resources/note_3.0-en-us.png"><span class="notetitle"> </span><div class="notebody"><p id="admin_guide_000423__p13468741135813">This topic is available for clusters of MRS <span id="admin_guide_000423__ph170535215195">3.5.0</span> and later only.</p>
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</div></div>
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<div class="section" id="admin_guide_000423__en-us_topic_0000001819415328_section1531641154814"><h4 class="sectiontitle">Prerequisites</h4><ul id="admin_guide_000423__en-us_topic_0000001819415328_ul20874641134510"><li id="admin_guide_000423__en-us_topic_0000001819415328_li1323711424332">To back up data to a remote HDFS, the following conditions must be met:<ul id="admin_guide_000423__en-us_topic_0000001819415328_ul41736863414"><li id="admin_guide_000423__en-us_topic_0000001819415328_li1139104818520">A standby cluster for backing up data has been created. The authentication mode must be the same as that of the active cluster.</li><li id="admin_guide_000423__en-us_topic_0000001819415328_li8695172703411">At least one DBroker instance of the Doris service has been deployed in the active cluster.</li><li id="admin_guide_000423__en-us_topic_0000001819415328_li1892243193520">If the active and standby clusters are deployed in security mode and they are not managed by the same MRS Manager, mutual trust must be configured. For details, see <a href="admin_guide_000177.html">Configuring Cross-Manager Mutual Trust Between Clusters</a>. If the active and standby clusters are deployed in normal mode, no mutual trust is required.</li><li id="admin_guide_000423__en-us_topic_0000001819415328_li1447885733519">The time on the active and standby clusters must be the same, and the NTP service on the active and standby clusters uses the same time source.</li><li id="admin_guide_000423__en-us_topic_0000001819415328_li15261113914367">The HDFS in the standby cluster has sufficient space. You are advised to save backup files in a custom directory.</li><li id="admin_guide_000423__en-us_topic_0000001819415328_li5261173923613">The value of <strong id="admin_guide_000423__en-us_topic_0000001819415328_b133318118544">hadoop.rpc.protection</strong> of Doris must be the same as that of <strong id="admin_guide_000423__en-us_topic_0000001819415328_b209181017549">hadoop.rpc.protection</strong> of HDFS in both active and standby clusters.</li></ul>
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</li><li id="admin_guide_000423__en-us_topic_0000001819415328_li188631425135316">You have planned the backup type, period, object, and directory based on service requirements.</li><li id="admin_guide_000423__en-us_topic_0000001819415328_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>
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</div>
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<div class="section" id="admin_guide_000423__en-us_topic_0000001819415328_section113917518484"><h4 class="sectiontitle">Backing Up Doris Data</h4><ol id="admin_guide_000423__en-us_topic_0000001819415328_ol29511823591"><li id="admin_guide_000423__en-us_topic_0000001819415328_li514247915256"><span>On MRS Manager, choose <strong id="admin_guide_000423__en-us_topic_0000001819415328_b128857752145139">O&M</strong> > <strong id="admin_guide_000423__en-us_topic_0000001819415328_b191414301045139">Backup and Restoration</strong> > <strong id="admin_guide_000423__en-us_topic_0000001819415328_b103170483345139">Backup Management</strong>.</span></li><li id="admin_guide_000423__en-us_topic_0000001819415328_li1388766715256"><span>Click <strong id="admin_guide_000423__en-us_topic_0000001819415328_b143301787245139">Create</strong>.</span></li><li id="admin_guide_000423__en-us_topic_0000001819415328_li5788013915256"><span>Set <strong id="admin_guide_000423__en-us_topic_0000001819415328_b41471171345139">Name</strong> to the name of the backup task.</span></li><li id="admin_guide_000423__en-us_topic_0000001819415328_li2832102653918"><span>Select the desired cluster from <strong id="admin_guide_000423__en-us_topic_0000001819415328_b4670167545139">Backup Object</strong>.</span></li><li id="admin_guide_000423__en-us_topic_0000001819415328_li1759563715256"><span>Set <strong id="admin_guide_000423__en-us_topic_0000001819415328_b1194191711145">Mode</strong> to the type of the backup task.</span><p><ul id="admin_guide_000423__en-us_topic_0000001819415328_ul3116105815119"><li id="admin_guide_000423__en-us_topic_0000001819415328_li15821426522"><strong id="admin_guide_000423__b2653141201212">Periodic</strong>: indicates that the backup task is periodically executed. If you select this mode, you need to set other parameters by referring to <a href="#admin_guide_000423__en-us_topic_0000001819415328_table16898399515">Table 1</a>.</li><li id="admin_guide_000423__en-us_topic_0000001819415328_li12116125845114"><strong id="admin_guide_000423__en-us_topic_0000001819415328_b5788162293612">Manual</strong>: indicates that the backup task is manually executed.</li></ul>
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<div class="tablenoborder"><a name="admin_guide_000423__en-us_topic_0000001819415328_table16898399515"></a><a name="en-us_topic_0000001819415328_table16898399515"></a><table cellpadding="4" cellspacing="0" summary="" id="admin_guide_000423__en-us_topic_0000001819415328_table16898399515" frame="border" border="1" rules="all"><caption><b>Table 1 </b>Periodic backup parameters</caption><thead align="left"><tr id="admin_guide_000423__en-us_topic_0000001819415328_row86887399513"><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_000423__en-us_topic_0000001819415328_p768873920514">Parameter</p>
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</th>
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<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_000423__en-us_topic_0000001819415328_p1688203925114">Description</p>
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</th>
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</thead>
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<tbody><tr id="admin_guide_000423__en-us_topic_0000001819415328_row56881939105116"><td class="cellrowborder" valign="top" width="21.84%" headers="mcps1.3.3.2.5.2.2.2.3.1.1 "><p id="admin_guide_000423__en-us_topic_0000001819415328_p468893913514">Started</p>
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<td class="cellrowborder" valign="top" width="78.16%" headers="mcps1.3.3.2.5.2.2.2.3.1.2 "><p id="admin_guide_000423__en-us_topic_0000001819415328_p166885397513">Time when the task is started for the first time</p>
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</td>
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</tr>
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<tr id="admin_guide_000423__en-us_topic_0000001819415328_row10688103920514"><td class="cellrowborder" valign="top" width="21.84%" headers="mcps1.3.3.2.5.2.2.2.3.1.1 "><p id="admin_guide_000423__en-us_topic_0000001819415328_p668833905117">Period</p>
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<td class="cellrowborder" valign="top" width="78.16%" headers="mcps1.3.3.2.5.2.2.2.3.1.2 "><p id="admin_guide_000423__en-us_topic_0000001819415328_p668814394514">The task execution interval. The options include <strong id="admin_guide_000423__en-us_topic_0000001819415328_b38266036245139">Hours</strong> and <strong id="admin_guide_000423__en-us_topic_0000001819415328_b316247445139">Days</strong>.</p>
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</tr>
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<tr id="admin_guide_000423__en-us_topic_0000001819415328_row1068933995120"><td class="cellrowborder" valign="top" width="21.84%" headers="mcps1.3.3.2.5.2.2.2.3.1.1 "><p id="admin_guide_000423__en-us_topic_0000001819415328_p19688339175110">Backup Policy</p>
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<td class="cellrowborder" valign="top" width="78.16%" headers="mcps1.3.3.2.5.2.2.2.3.1.2 "><ul id="admin_guide_000423__en-us_topic_0000001819415328_ul1688193918511"><li id="admin_guide_000423__en-us_topic_0000001819415328_li13688939105120"><strong id="admin_guide_000423__en-us_topic_0000001819415328_b152049837745139">Full backup at the first time and incremental backup subsequently</strong></li><li id="admin_guide_000423__en-us_topic_0000001819415328_li166885392512"><strong id="admin_guide_000423__en-us_topic_0000001819415328_b168423095045139">Full backup every time</strong></li><li id="admin_guide_000423__en-us_topic_0000001819415328_li1688193913519"><strong id="admin_guide_000423__en-us_topic_0000001819415328_b210268406445139">Full backup once every n times</strong></li></ul>
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<div class="note" id="admin_guide_000423__en-us_topic_0000001819415328_note14689133965115"><span class="notetitle"> NOTE: </span><div class="notebody"><p id="admin_guide_000423__en-us_topic_0000001819415328_p1110305213522">Currently, Doris supports only <strong id="admin_guide_000423__en-us_topic_0000001819415328_b686416244394">full backup each time</strong>. Incremental backup is not supported.</p>
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</div></div>
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</tbody>
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</table>
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</p></li><li id="admin_guide_000423__en-us_topic_0000001819415328_li43938424155358"><span>In <strong id="admin_guide_000423__en-us_topic_0000001819415328_b1394311410423">Configuration</strong>, select <strong id="admin_guide_000423__en-us_topic_0000001819415328_b3296424104212">Doris</strong> under <strong id="admin_guide_000423__en-us_topic_0000001819415328_b77074293425">Metadata and other data</strong>.</span></li><li id="admin_guide_000423__en-us_topic_0000001819415328_li4457996415256"><span>Set <strong id="admin_guide_000423__en-us_topic_0000001819415328_b48831136144216">Path Type</strong> of <strong id="admin_guide_000423__en-us_topic_0000001819415328_b1088417368420">Doris</strong> to a backup directory type.</span><p>
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<div class="tablenoborder"><table cellpadding="4" cellspacing="0" summary="" id="admin_guide_000423__en-us_topic_0000001819415328_table990712501218" frame="border" border="1" rules="all"><caption><b>Table 2 </b>Path of backup data</caption><thead align="left"><tr id="admin_guide_000423__en-us_topic_0000001819415328_row1290710505217"><th align="left" class="cellrowborder" valign="top" width="30%" id="mcps1.3.3.2.7.2.1.2.3.1.1"><p id="admin_guide_000423__en-us_topic_0000001819415328_p49074506218">Directory Type</p>
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</th>
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<th align="left" class="cellrowborder" valign="top" width="70%" id="mcps1.3.3.2.7.2.1.2.3.1.2"><p id="admin_guide_000423__en-us_topic_0000001819415328_p49070501422">Description</p>
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</thead>
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<tbody><tr id="admin_guide_000423__en-us_topic_0000001819415328_row1660615411230"><td class="cellrowborder" valign="top" width="30%" headers="mcps1.3.3.2.7.2.1.2.3.1.1 "><p id="admin_guide_000423__en-us_topic_0000001819415328_p10607241738">RemoteHDFS</p>
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</td>
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<td class="cellrowborder" valign="top" width="70%" headers="mcps1.3.3.2.7.2.1.2.3.1.2 "><p id="admin_guide_000423__en-us_topic_0000001819415328_p1060713414311">Indicates that backup files are stored in the HDFS directory of the standby cluster. If you select this option, configure the following parameters:</p>
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<ul id="admin_guide_000423__en-us_topic_0000001819415328_ul1510121164011"><li id="admin_guide_000423__en-us_topic_0000001819415328_li1410814400"><strong id="admin_guide_000423__en-us_topic_0000001819415328_b25451122545139">Destination NameService Name</strong>: indicates the NameService name of the standby cluster, for example, <strong id="admin_guide_000423__en-us_topic_0000001819415328_b197054320345139">hacluster</strong>. You can obtain it from the <strong id="admin_guide_000423__en-us_topic_0000001819415328_b110721940445139">NameService Management</strong> page of HDFS on the standby cluster.</li></ul>
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<ul id="admin_guide_000423__en-us_topic_0000001819415328_ul13101115404"><li id="admin_guide_000423__en-us_topic_0000001819415328_li14107111404"><strong id="admin_guide_000423__en-us_topic_0000001819415328_b103317824445139">IP Mode</strong>: indicates the mode of the target IP address. The system automatically selects an IP address mode based on the cluster network type, for example, <strong id="admin_guide_000423__en-us_topic_0000001819415328_b155810850945139">IPv4</strong> or <strong id="admin_guide_000423__en-us_topic_0000001819415328_b27332793245139">IPv6</strong>.</li><li id="admin_guide_000423__en-us_topic_0000001819415328_li41061114013"><strong id="admin_guide_000423__en-us_topic_0000001819415328_b896352184519">Destination NameNode IP Address</strong>: indicates the service plane IP address of the active NameNode in the standby cluster.</li><li id="admin_guide_000423__en-us_topic_0000001819415328_li2011131174012"><strong id="admin_guide_000423__en-us_topic_0000001819415328_b17584147161511">Destination NameNode RPC Port</strong>: indicates the value of <strong id="admin_guide_000423__en-us_topic_0000001819415328_b1558414710153">dfs.namenode.rpc.port</strong> in the HDFS configuration of the destination cluster.</li><li id="admin_guide_000423__en-us_topic_0000001819415328_li151371835184110"><strong id="admin_guide_000423__en-us_topic_0000001819415328_b985114216112">DBroker IP</strong>: indicates the IP address of a service plane where the DBroker role in the cluster is deployed. The DBroker is used to transmit data during backup.</li><li id="admin_guide_000423__en-us_topic_0000001819415328_li19113117405"><strong id="admin_guide_000423__en-us_topic_0000001819415328_b933351911474">Target Path</strong>: indicates the HDFS directory for storing standby cluster backup data. The storage path cannot be an HDFS hidden directory, such as a snapshot or recycle bin directory, or a default system directory, such as <strong id="admin_guide_000423__en-us_topic_0000001819415328_b365124124710">/hbase</strong> or <strong id="admin_guide_000423__en-us_topic_0000001819415328_b7651524174716">/user/hbase/backup</strong>.</li></ul>
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<tr id="admin_guide_000423__en-us_topic_0000001819415328_row129087501621"><td class="cellrowborder" valign="top" width="30%" headers="mcps1.3.3.2.7.2.1.2.3.1.1 "><p id="admin_guide_000423__en-us_topic_0000001819415328_p190805011210">OBS</p>
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<td class="cellrowborder" valign="top" width="70%" headers="mcps1.3.3.2.7.2.1.2.3.1.2 "><p id="admin_guide_000423__en-us_topic_0000001819415328_p33652416140">Indicates that backup files are stored in an OBS directory. You need to set the <strong id="admin_guide_000423__en-us_topic_0000001819415328_b262653015481">Target Path</strong> to the OBS directory for storing backup data.</p>
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</table>
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</p></li><li id="admin_guide_000423__en-us_topic_0000001819415328_li66073815154428"><span>Set <strong id="admin_guide_000423__en-us_topic_0000001819415328_b93326349845139">Maximum Number of Recovery Points</strong> to the number of snapshots that can be retained in the cluster.</span></li><li id="admin_guide_000423__en-us_topic_0000001819415328_li7186938155358"><span>Set <strong id="admin_guide_000423__en-us_topic_0000001819415328_b39367228496">Backup Content</strong> to one or multiple Doris tables to be backed up.</span><p><p id="admin_guide_000423__en-us_topic_0000001819415328_p28518178155358">You can select backup data using either of the following methods:</p>
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<ul id="admin_guide_000423__en-us_topic_0000001819415328_ul8255089155358"><li id="admin_guide_000423__en-us_topic_0000001819415328_li28271067155358">Adding a backup data file<p id="admin_guide_000423__en-us_topic_0000001819415328_p1322548161715"><a name="admin_guide_000423__en-us_topic_0000001819415328_li28271067155358"></a><a name="en-us_topic_0000001819415328_li28271067155358"></a>Click the name of a database in the navigation pane to show all the tables in the database, and select specified tables.</p>
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</li></ul>
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<ul id="admin_guide_000423__en-us_topic_0000001819415328_ul1186035512512"><li id="admin_guide_000423__en-us_topic_0000001819415328_li365818280515">Using regular expressions<ol type="a" id="admin_guide_000423__en-us_topic_0000001819415328_ol145071834181216"><li id="admin_guide_000423__en-us_topic_0000001819415328_li11507153420123">Click <strong id="admin_guide_000423__en-us_topic_0000001819415328_b11437176145139">Query Regular Expression</strong>.</li><li id="admin_guide_000423__en-us_topic_0000001819415328_li25081344123">Enter the database where the Doris tables are located in the first text box as prompted. The database must be the same as the existing database, for example, <strong id="admin_guide_000423__en-us_topic_0000001819415328_b2939235512">/example_db</strong>.</li><li id="admin_guide_000423__en-us_topic_0000001819415328_li550893451210">Enter a regular expression in the second box. Standard regular expressions are supported. For example, to search for all tables that contain the keyword <strong id="admin_guide_000423__en-us_topic_0000001819415328_b615117820512">test</strong> in the database, enter <strong id="admin_guide_000423__en-us_topic_0000001819415328_b1615118195119">test.*</strong>.</li><li id="admin_guide_000423__en-us_topic_0000001819415328_li05082034131216">Click <strong id="admin_guide_000423__en-us_topic_0000001819415328_b38743068145139">Refresh</strong> to view the displayed tables in <strong id="admin_guide_000423__en-us_topic_0000001819415328_b9336333945139">Directory Name</strong>.</li><li id="admin_guide_000423__en-us_topic_0000001819415328_li145081634151212">Click <strong id="admin_guide_000423__en-us_topic_0000001819415328_b39604092845139">Synchronize</strong> to save the result.</li></ol>
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<div class="note" id="admin_guide_000423__en-us_topic_0000001819415328_note95082344121"><img src="public_sys-resources/note_3.0-en-us.png"><span class="notetitle"> </span><div class="notebody"><ul id="admin_guide_000423__en-us_topic_0000001819415328_ul2050817344124"><li id="admin_guide_000423__en-us_topic_0000001819415328_li250893451218">When entering regular expressions, click <span><img id="admin_guide_000423__en-us_topic_0000001819415328_image45085343127" src="en-us_image_0000002380008412.png"></span> or <span><img id="admin_guide_000423__en-us_topic_0000001819415328_image1650811349124" src="en-us_image_0000002413647801.png"></span> to add or delete an expression.</li><li id="admin_guide_000423__en-us_topic_0000001819415328_li175081334111220">If the selected table or directory is incorrect, click <strong id="admin_guide_000423__en-us_topic_0000001819415328_b10578239135111">Clear Selected Node</strong> to deselect it.</li></ul>
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</div></div>
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</li></ul>
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</p></li><li id="admin_guide_000423__en-us_topic_0000001819415328_en-us_topic_0046736768_li19864978"><span>Click <strong id="admin_guide_000423__en-us_topic_0000001819415328_b74484754145139">Verify</strong> to check whether the backup task is configured correctly.</span><p><p class="litext" id="admin_guide_000423__en-us_topic_0000001819415328_en-us_topic_0046736768_p44567074">The possible causes of the verification failure are as follows:</p>
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<ul class="subitemlist" id="admin_guide_000423__en-us_topic_0000001819415328_en-us_topic_0046736768_ul65559353"><li id="admin_guide_000423__en-us_topic_0000001819415328_en-us_topic_0046736768_li34210590">The target NameNode IP address is incorrect.</li><li id="admin_guide_000423__en-us_topic_0000001819415328_li97931214113312">The name of the NameService is incorrect.</li><li id="admin_guide_000423__en-us_topic_0000001819415328_li198255919324">The table to be backed up does not exist.</li><li id="admin_guide_000423__en-us_topic_0000001819415328_li1130315181298">The format of the table to be backed up is incorrect.</li><li id="admin_guide_000423__en-us_topic_0000001819415328_li51019248410">The tables to be backed up must come from the same database.</li></ul>
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</p></li><li id="admin_guide_000423__en-us_topic_0000001819415328_en-us_topic_0046736768_li39459859"><span>Click <strong id="admin_guide_000423__en-us_topic_0000001819415328_b154387180545139">OK</strong>.</span></li><li id="admin_guide_000423__en-us_topic_0000001819415328_en-us_topic_0046736768_li42131977"><span>In the <strong id="admin_guide_000423__en-us_topic_0000001819415328_b12225111755218">Operation</strong> column of the created task in the backup task list, click <strong id="admin_guide_000423__en-us_topic_0000001819415328_b17226417175211">More</strong> and select <strong id="admin_guide_000423__en-us_topic_0000001819415328_b1422651711524">Back Up Now</strong> to execute the backup task.</span><p><p id="admin_guide_000423__en-us_topic_0000001819415328_en-us_topic_0046736768_p57246976">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_000423__en-us_topic_0000001819415328_i11865192114525">Backup task name_Data source_Task creation time</em>, and the subdirectory is used to save latest data source backup files. All the backup file sets are stored in the related snapshot directories.</p>
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</p></li></ol>
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<div class="familylinks">
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<div class="parentlink"><strong>Parent topic:</strong> <a href="admin_guide_000201.html">Backing Up Data</a></div>
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