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doc-exports/docs/dataartsstudio/umn/dataartsstudio_01_0100.html
chenxiaoxiong f9e2808b7c DataArts UMN 20250810 version 
Reviewed-by: Pruthi, Vineet <vineet.pruthi@t-systems.com>
Co-authored-by: chenxiaoxiong <chenxiaoxiong@huawei.com>
Co-committed-by: chenxiaoxiong <chenxiaoxiong@huawei.com>
2025-09-02 10:44:13 +00:00

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<a name="dataartsstudio_01_0100"></a><a name="dataartsstudio_01_0100"></a>
<h1 class="topictitle1">Migrating Data from MySQL to OBS</h1>
<div id="body8662426"><div class="section" id="dataartsstudio_01_0100__en-us_topic_0284710796_section2353196237"><h4 class="sectiontitle">Scenario</h4><p id="dataartsstudio_01_0100__en-us_topic_0284710796_p19986314333">CDM supports table-to-OBS data migration. This section describes how to migrate tables from a MySQL database to OBS. The process is as follows:</p>
<ol id="dataartsstudio_01_0100__en-us_topic_0284710796_ol466514154537"><li id="dataartsstudio_01_0100__en-us_topic_0284710796_li1766521515310"><a href="#dataartsstudio_01_0100__en-us_topic_0284710796_section1596917553011">Creating a CDM Cluster and Binding an EIP to the Cluster</a></li><li id="dataartsstudio_01_0100__en-us_topic_0284710796_li112513259531"><a href="#dataartsstudio_01_0100__en-us_topic_0284710796_section4972205516016">Creating a MySQL Link</a></li><li id="dataartsstudio_01_0100__en-us_topic_0284710796_li722823125318"><a href="#dataartsstudio_01_0100__en-us_topic_0284710796_section5774720191611">Creating an OBS Link</a></li><li id="dataartsstudio_01_0100__en-us_topic_0284710796_li2106037115318"><a href="#dataartsstudio_01_0100__en-us_topic_0284710796_section119151411712">Creating a Migration Job</a></li></ol>
</div>
<div class="section" id="dataartsstudio_01_0100__en-us_topic_0284710796_section563405015518"><h4 class="sectiontitle">Prerequisites</h4><ul id="dataartsstudio_01_0100__en-us_topic_0284710796_ul45436471068"><li id="dataartsstudio_01_0100__en-us_topic_0284710796_li1458495263814">You have obtained the domain name, port number, AK, and SK for accessing OBS.</li><li id="dataartsstudio_01_0100__en-us_topic_0284710796_li2723271211445">You have obtained the IP address, port, database name, username, and password for connecting to the MySQL database. In addition, the user must have the read and write permissions on the MySQL database.</li><li id="dataartsstudio_01_0100__en-us_topic_0284710796_li178721321413">You have uploaded the MySQL database driver on the <span class="menucascade" id="dataartsstudio_01_0100__en-us_topic_0284710796_menucascade8372132585114"><b><span class="uicontrol" id="dataartsstudio_01_0100__en-us_topic_0284710796_uicontrol133711725175111">Job Management</span></b> &gt; <b><span class="uicontrol" id="dataartsstudio_01_0100__en-us_topic_0284710796_uicontrol7371122535115">Links</span></b> &gt; <b><span class="uicontrol" id="dataartsstudio_01_0100__en-us_topic_0284710796_uicontrol1737111258514">Driver Management</span></b></span> page.</li></ul>
</div>
<div class="section" id="dataartsstudio_01_0100__en-us_topic_0284710796_section1596917553011"><a name="dataartsstudio_01_0100__en-us_topic_0284710796_section1596917553011"></a><a name="en-us_topic_0284710796_section1596917553011"></a><h4 class="sectiontitle">Creating a CDM Cluster and Binding an EIP to the Cluster</h4><ol id="dataartsstudio_01_0100__en-us_topic_0284710796_en-us_topic_0111325168_ol686765753513"><li id="dataartsstudio_01_0100__en-us_topic_0284710796_li89807384515"><span id="dataartsstudio_01_0100__en-us_topic_0284710796_p342142211225">Create a CDM cluster.</span><p><p id="dataartsstudio_01_0100__en-us_topic_0284710796_p71409403512">The key configurations are as follows:</p>
<p id="dataartsstudio_01_0100__en-us_topic_0284710796_p20976145073918">The flavor of the CDM cluster is selected based on the amount of data to be migrated. Generally, cdm.medium meets the requirements for most migration scenarios.</p>
</p></li><li id="dataartsstudio_01_0100__en-us_topic_0284710796_en-us_topic_0111325168_li1844914916273"><span>After the CDM cluster is created, on the <strong id="dataartsstudio_01_0100__en-us_topic_0284710796_b1520517102275">Cluster Management</strong> page, click <span class="uicontrol" id="dataartsstudio_01_0100__en-us_topic_0284710796_uicontrol1821020103278"><b>Bind EIP</b></span> in the <strong id="dataartsstudio_01_0100__en-us_topic_0284710796_b0210710162710">Operation</strong> column to bind an EIP to the cluster. The CDM cluster uses the EIP to access MySQL.</span><p><div class="note" id="dataartsstudio_01_0100__en-us_topic_0284710796_note24642513383"><img src="public_sys-resources/note_3.0-en-us.png"><span class="notetitle"> </span><div class="notebody"><p id="dataartsstudio_01_0100__en-us_topic_0284710796_en-us_topic_0108275471_p1693084519332">If SSL encryption is configured for the access channel of a local data source, CDM cannot connect to the data source using the EIP.</p>
</div></div>
</p></li></ol>
</div>
<div class="section" id="dataartsstudio_01_0100__en-us_topic_0284710796_section4972205516016"><a name="dataartsstudio_01_0100__en-us_topic_0284710796_section4972205516016"></a><a name="en-us_topic_0284710796_section4972205516016"></a><h4 class="sectiontitle">Creating a MySQL Link</h4><ol id="dataartsstudio_01_0100__en-us_topic_0284710796_en-us_topic_0111325168_ol1175033817329"><li id="dataartsstudio_01_0100__en-us_topic_0284710796_en-us_topic_0111325168_li16641390115738"><span>On the <span class="uicontrol" id="dataartsstudio_01_0100__en-us_topic_0284710796_en-us_topic_0111325168_uicontrol269123222818"><b>Cluster Management</b></span> page, locate a cluster and click <span class="uicontrol" id="dataartsstudio_01_0100__en-us_topic_0284710796_en-us_topic_0111325168_uicontrol56903211288"><b>Job Management</b></span> in the <strong id="dataartsstudio_01_0100__en-us_topic_0284710796_en-us_topic_0111325168_b8691432152814">Operation</strong> column. On the displayed page, click the <strong id="dataartsstudio_01_0100__en-us_topic_0284710796_en-us_topic_0111325168_b1770432112813">Links</strong> tab and then <strong id="dataartsstudio_01_0100__en-us_topic_0284710796_en-us_topic_0111325168_b670133217284">Create Link</strong>.</span></li><li id="dataartsstudio_01_0100__en-us_topic_0284710796_en-us_topic_0111325168_li55925676152157"><span>Select <span class="uicontrol" id="dataartsstudio_01_0100__en-us_topic_0284710796_en-us_topic_0111325168_en-us_topic_0108275298_uicontrol12819217182710"><b>MySQL</b></span> and click <span class="uicontrol" id="dataartsstudio_01_0100__en-us_topic_0284710796_en-us_topic_0111325168_en-us_topic_0108275298_uicontrol178191117102712"><b>Next</b></span>. On the displayed page, configure MySQL link parameters.</span><p><p id="dataartsstudio_01_0100__en-us_topic_0284710796_en-us_topic_0111325168_en-us_topic_0108275298_p30757446152044">Click <strong id="dataartsstudio_01_0100__en-us_topic_0284710796_en-us_topic_0111325168_en-us_topic_0108275298_b19202333413">Show Advanced Attributes</strong> to view more optional parameters. For details, see <a href="dataartsstudio_01_1211.html">RDS for MySQL/MySQL Database Link Parameters</a>. Retain the default values of the optional parameters and configure the mandatory parameters according to <a href="#dataartsstudio_01_0100__en-us_topic_0284710796_en-us_topic_0111325168_en-us_topic_0108275298_table5321744015490">Table 1</a>.</p>
<div class="tablenoborder"><a name="dataartsstudio_01_0100__en-us_topic_0284710796_en-us_topic_0111325168_en-us_topic_0108275298_table5321744015490"></a><a name="en-us_topic_0284710796_en-us_topic_0111325168_en-us_topic_0108275298_table5321744015490"></a><table cellpadding="4" cellspacing="0" summary="" id="dataartsstudio_01_0100__en-us_topic_0284710796_en-us_topic_0111325168_en-us_topic_0108275298_table5321744015490" frame="border" border="1" rules="all"><caption><b>Table 1 </b>MySQL link parameters</caption><thead align="left"><tr id="dataartsstudio_01_0100__en-us_topic_0284710796_en-us_topic_0111325168_en-us_topic_0108275298_en-us_topic_0000001147041354_en-us_topic_0284710796_en-us_topic_0111325168_en-us_topic_0108275298_row185605615490"><th align="left" class="cellrowborder" valign="top" width="21.39%" id="mcps1.3.4.2.2.2.2.2.4.1.1"><p id="dataartsstudio_01_0100__en-us_topic_0284710796_en-us_topic_0111325168_en-us_topic_0108275298_en-us_topic_0000001147041354_en-us_topic_0284710796_en-us_topic_0111325168_en-us_topic_0108275298_p3088488815490">Parameter</p>
</th>
<th align="left" class="cellrowborder" valign="top" width="46.01%" id="mcps1.3.4.2.2.2.2.2.4.1.2"><p id="dataartsstudio_01_0100__en-us_topic_0284710796_en-us_topic_0111325168_en-us_topic_0108275298_en-us_topic_0000001147041354_en-us_topic_0284710796_en-us_topic_0111325168_en-us_topic_0108275298_p1864797615490">Description</p>
</th>
<th align="left" class="cellrowborder" valign="top" width="32.6%" id="mcps1.3.4.2.2.2.2.2.4.1.3"><p id="dataartsstudio_01_0100__en-us_topic_0284710796_en-us_topic_0111325168_en-us_topic_0108275298_en-us_topic_0000001147041354_en-us_topic_0284710796_en-us_topic_0111325168_en-us_topic_0108275298_p12195902165556">Example Value</p>
</th>
</tr>
</thead>
<tbody><tr id="dataartsstudio_01_0100__en-us_topic_0284710796_en-us_topic_0111325168_en-us_topic_0108275298_en-us_topic_0000001147041354_en-us_topic_0284710796_en-us_topic_0111325168_en-us_topic_0108275298_row6448267615421"><td class="cellrowborder" valign="top" width="21.39%" headers="mcps1.3.4.2.2.2.2.2.4.1.1 "><p id="dataartsstudio_01_0100__en-us_topic_0284710796_en-us_topic_0111325168_en-us_topic_0108275298_en-us_topic_0000001147041354_en-us_topic_0284710796_en-us_topic_0111325168_en-us_topic_0108275298_p5571423915421">Name</p>
</td>
<td class="cellrowborder" valign="top" width="46.01%" headers="mcps1.3.4.2.2.2.2.2.4.1.2 "><p id="dataartsstudio_01_0100__en-us_topic_0284710796_en-us_topic_0111325168_en-us_topic_0108275298_en-us_topic_0000001147041354_en-us_topic_0284710796_en-us_topic_0111325168_en-us_topic_0108275298_p1655951515421">Unique link name</p>
</td>
<td class="cellrowborder" valign="top" width="32.6%" headers="mcps1.3.4.2.2.2.2.2.4.1.3 "><p id="dataartsstudio_01_0100__en-us_topic_0284710796_en-us_topic_0111325168_en-us_topic_0108275298_en-us_topic_0000001147041354_en-us_topic_0284710796_en-us_topic_0111325168_en-us_topic_0108275298_p6625233515421">mysqllink</p>
</td>
</tr>
<tr id="dataartsstudio_01_0100__en-us_topic_0284710796_en-us_topic_0111325168_en-us_topic_0108275298_en-us_topic_0000001147041354_en-us_topic_0284710796_en-us_topic_0111325168_en-us_topic_0108275298_row23645714155554"><td class="cellrowborder" valign="top" width="21.39%" headers="mcps1.3.4.2.2.2.2.2.4.1.1 "><p id="dataartsstudio_01_0100__en-us_topic_0284710796_en-us_topic_0111325168_en-us_topic_0108275298_en-us_topic_0000001147041354_en-us_topic_0284710796_en-us_topic_0111325168_en-us_topic_0108275298_p36254680155554">Database Server</p>
</td>
<td class="cellrowborder" valign="top" width="46.01%" headers="mcps1.3.4.2.2.2.2.2.4.1.2 "><p id="dataartsstudio_01_0100__en-us_topic_0284710796_en-us_topic_0111325168_en-us_topic_0108275298_en-us_topic_0000001147041354_en-us_topic_0284710796_en-us_topic_0111325168_en-us_topic_0108275298_p57055815164650">IP address or domain name of the MySQL database server</p>
</td>
<td class="cellrowborder" valign="top" width="32.6%" headers="mcps1.3.4.2.2.2.2.2.4.1.3 "><p id="dataartsstudio_01_0100__en-us_topic_0284710796_en-us_topic_0111325168_en-us_topic_0108275298_en-us_topic_0000001147041354_en-us_topic_0284710796_en-us_topic_0111325168_en-us_topic_0108275298_p54006514165556">-</p>
</td>
</tr>
<tr id="dataartsstudio_01_0100__en-us_topic_0284710796_en-us_topic_0111325168_en-us_topic_0108275298_en-us_topic_0000001147041354_en-us_topic_0284710796_en-us_topic_0111325168_en-us_topic_0108275298_row35721234155558"><td class="cellrowborder" valign="top" width="21.39%" headers="mcps1.3.4.2.2.2.2.2.4.1.1 "><p id="dataartsstudio_01_0100__en-us_topic_0284710796_en-us_topic_0111325168_en-us_topic_0108275298_en-us_topic_0000001147041354_en-us_topic_0284710796_en-us_topic_0111325168_en-us_topic_0108275298_p7738819155558">Port</p>
</td>
<td class="cellrowborder" valign="top" width="46.01%" headers="mcps1.3.4.2.2.2.2.2.4.1.2 "><p id="dataartsstudio_01_0100__en-us_topic_0284710796_en-us_topic_0111325168_en-us_topic_0108275298_en-us_topic_0000001147041354_en-us_topic_0284710796_en-us_topic_0111325168_en-us_topic_0108275298_p44462215165646">MySQL database port</p>
</td>
<td class="cellrowborder" valign="top" width="32.6%" headers="mcps1.3.4.2.2.2.2.2.4.1.3 "><p id="dataartsstudio_01_0100__en-us_topic_0284710796_en-us_topic_0111325168_en-us_topic_0108275298_en-us_topic_0000001147041354_en-us_topic_0284710796_en-us_topic_0111325168_en-us_topic_0108275298_p44954710165556">3306</p>
</td>
</tr>
<tr id="dataartsstudio_01_0100__en-us_topic_0284710796_en-us_topic_0111325168_en-us_topic_0108275298_en-us_topic_0000001147041354_en-us_topic_0284710796_en-us_topic_0111325168_en-us_topic_0108275298_row58054787162632"><td class="cellrowborder" valign="top" width="21.39%" headers="mcps1.3.4.2.2.2.2.2.4.1.1 "><p id="dataartsstudio_01_0100__en-us_topic_0284710796_en-us_topic_0111325168_en-us_topic_0108275298_en-us_topic_0000001147041354_en-us_topic_0284710796_en-us_topic_0111325168_en-us_topic_0108275298_p4817321162632">Database Name</p>
</td>
<td class="cellrowborder" valign="top" width="46.01%" headers="mcps1.3.4.2.2.2.2.2.4.1.2 "><p id="dataartsstudio_01_0100__en-us_topic_0284710796_en-us_topic_0111325168_en-us_topic_0108275298_en-us_topic_0000001147041354_en-us_topic_0284710796_en-us_topic_0111325168_en-us_topic_0108275298_p23569444165647">Name of the MySQL database</p>
</td>
<td class="cellrowborder" valign="top" width="32.6%" headers="mcps1.3.4.2.2.2.2.2.4.1.3 "><p id="dataartsstudio_01_0100__en-us_topic_0284710796_en-us_topic_0111325168_en-us_topic_0108275298_en-us_topic_0000001147041354_en-us_topic_0284710796_en-us_topic_0111325168_en-us_topic_0108275298_p22858665165556">sqoop</p>
</td>
</tr>
<tr id="dataartsstudio_01_0100__en-us_topic_0284710796_en-us_topic_0111325168_en-us_topic_0108275298_en-us_topic_0000001147041354_en-us_topic_0284710796_en-us_topic_0111325168_en-us_topic_0108275298_row121116115490"><td class="cellrowborder" valign="top" width="21.39%" headers="mcps1.3.4.2.2.2.2.2.4.1.1 "><p id="dataartsstudio_01_0100__en-us_topic_0284710796_en-us_topic_0111325168_en-us_topic_0108275298_en-us_topic_0000001147041354_en-us_topic_0284710796_en-us_topic_0111325168_en-us_topic_0108275298_p3099525315490">Username</p>
</td>
<td class="cellrowborder" valign="top" width="46.01%" headers="mcps1.3.4.2.2.2.2.2.4.1.2 "><p id="dataartsstudio_01_0100__en-us_topic_0284710796_en-us_topic_0111325168_en-us_topic_0108275298_en-us_topic_0000001147041354_en-us_topic_0284710796_en-us_topic_0111325168_en-us_topic_0108275298_p2758753215490">User who has the read, write, and delete permissions on the MySQL database</p>
</td>
<td class="cellrowborder" valign="top" width="32.6%" headers="mcps1.3.4.2.2.2.2.2.4.1.3 "><p id="dataartsstudio_01_0100__en-us_topic_0284710796_en-us_topic_0111325168_en-us_topic_0108275298_en-us_topic_0000001147041354_en-us_topic_0284710796_en-us_topic_0111325168_en-us_topic_0108275298_p14053644165556">admin</p>
</td>
</tr>
<tr id="dataartsstudio_01_0100__en-us_topic_0284710796_en-us_topic_0111325168_en-us_topic_0108275298_en-us_topic_0000001147041354_en-us_topic_0284710796_en-us_topic_0111325168_en-us_topic_0108275298_row4576104015490"><td class="cellrowborder" valign="top" width="21.39%" headers="mcps1.3.4.2.2.2.2.2.4.1.1 "><p id="dataartsstudio_01_0100__en-us_topic_0284710796_en-us_topic_0111325168_en-us_topic_0108275298_en-us_topic_0000001147041354_en-us_topic_0284710796_en-us_topic_0111325168_en-us_topic_0108275298_p1565673415490">Password</p>
</td>
<td class="cellrowborder" valign="top" width="46.01%" headers="mcps1.3.4.2.2.2.2.2.4.1.2 "><p id="dataartsstudio_01_0100__en-us_topic_0284710796_en-us_topic_0111325168_en-us_topic_0108275298_en-us_topic_0000001147041354_en-us_topic_0284710796_en-us_topic_0111325168_en-us_topic_0108275298_p6023590815490">Password of the user</p>
</td>
<td class="cellrowborder" valign="top" width="32.6%" headers="mcps1.3.4.2.2.2.2.2.4.1.3 "><p id="dataartsstudio_01_0100__en-us_topic_0284710796_en-us_topic_0111325168_en-us_topic_0108275298_en-us_topic_0000001147041354_en-us_topic_0284710796_en-us_topic_0111325168_en-us_topic_0108275298_p44559445165556">-</p>
</td>
</tr>
<tr id="dataartsstudio_01_0100__en-us_topic_0284710796_en-us_topic_0111325168_en-us_topic_0108275298_en-us_topic_0000001147041354_row1695382013335"><td class="cellrowborder" valign="top" width="21.39%" headers="mcps1.3.4.2.2.2.2.2.4.1.1 "><p id="dataartsstudio_01_0100__en-us_topic_0284710796_en-us_topic_0111325168_en-us_topic_0108275298_en-us_topic_0000001147041354_p1395410209337">Use Local API</p>
</td>
<td class="cellrowborder" valign="top" width="46.01%" headers="mcps1.3.4.2.2.2.2.2.4.1.2 "><p id="dataartsstudio_01_0100__en-us_topic_0284710796_en-us_topic_0111325168_en-us_topic_0108275298_en-us_topic_0000001147041354_p16954220143310">Whether to use the local API of the database for acceleration. (The system attempts to enable the <strong id="dataartsstudio_01_0100__en-us_topic_0284710796_en-us_topic_0111325168_en-us_topic_0108275298_b152419603572158">local_infile</strong> system variable of the MySQL database.)</p>
</td>
<td class="cellrowborder" valign="top" width="32.6%" headers="mcps1.3.4.2.2.2.2.2.4.1.3 "><p id="dataartsstudio_01_0100__en-us_topic_0284710796_en-us_topic_0111325168_en-us_topic_0108275298_en-us_topic_0000001147041354_p195462013337">Yes</p>
</td>
</tr>
<tr id="dataartsstudio_01_0100__en-us_topic_0284710796_en-us_topic_0111325168_en-us_topic_0108275298_en-us_topic_0000001147041354_en-us_topic_0284710796_en-us_topic_0111325168_en-us_topic_0108275298_row117692617437"><td class="cellrowborder" valign="top" width="21.39%" headers="mcps1.3.4.2.2.2.2.2.4.1.1 "><p id="dataartsstudio_01_0100__en-us_topic_0284710796_en-us_topic_0111325168_en-us_topic_0108275298_en-us_topic_0000001147041354_en-us_topic_0284710796_en-us_topic_0111325168_en-us_topic_0108275298_p18773153334318">Use Agent</p>
</td>
<td class="cellrowborder" valign="top" width="46.01%" headers="mcps1.3.4.2.2.2.2.2.4.1.2 "><p id="dataartsstudio_01_0100__en-us_topic_0284710796_en-us_topic_0111325168_en-us_topic_0108275298_p14586850165214"><span id="dataartsstudio_01_0100__en-us_topic_0284710796_en-us_topic_0111325168_en-us_topic_0108275298_text1558625010526">The agent function will be unavailable soon and does not need to be configured.</span></p>
</td>
<td class="cellrowborder" valign="top" width="32.6%" headers="mcps1.3.4.2.2.2.2.2.4.1.3 "><p id="dataartsstudio_01_0100__en-us_topic_0284710796_en-us_topic_0111325168_en-us_topic_0108275298_en-us_topic_0000001147041354_en-us_topic_0284710796_en-us_topic_0111325168_en-us_topic_0108275298_p1977311335439">-</p>
</td>
</tr>
<tr id="dataartsstudio_01_0100__en-us_topic_0284710796_en-us_topic_0111325168_en-us_topic_0108275298_en-us_topic_0000001147041354_row189746446585"><td class="cellrowborder" valign="top" width="21.39%" headers="mcps1.3.4.2.2.2.2.2.4.1.1 "><p id="dataartsstudio_01_0100__en-us_topic_0284710796_en-us_topic_0111325168_en-us_topic_0108275298_en-us_topic_0000001147041354_p179755443589">local_infile Character Set</p>
</td>
<td class="cellrowborder" valign="top" width="46.01%" headers="mcps1.3.4.2.2.2.2.2.4.1.2 "><p id="dataartsstudio_01_0100__en-us_topic_0284710796_en-us_topic_0111325168_en-us_topic_0108275298_en-us_topic_0000001147041354_p497514412583">When using local_infile to import data to MySQL, you can configure the encoding format.</p>
</td>
<td class="cellrowborder" valign="top" width="32.6%" headers="mcps1.3.4.2.2.2.2.2.4.1.3 "><p id="dataartsstudio_01_0100__en-us_topic_0284710796_en-us_topic_0111325168_en-us_topic_0108275298_en-us_topic_0000001147041354_p9975244135817">utf8</p>
</td>
</tr>
<tr id="dataartsstudio_01_0100__en-us_topic_0284710796_en-us_topic_0111325168_en-us_topic_0108275298_en-us_topic_0000001147041354_row29922517620"><td class="cellrowborder" valign="top" width="21.39%" headers="mcps1.3.4.2.2.2.2.2.4.1.1 "><p id="dataartsstudio_01_0100__en-us_topic_0284710796_en-us_topic_0111325168_en-us_topic_0108275298_en-us_topic_0000001147041354_p199921356617">Driver Version</p>
</td>
<td class="cellrowborder" valign="top" width="46.01%" headers="mcps1.3.4.2.2.2.2.2.4.1.2 "><p id="dataartsstudio_01_0100__en-us_topic_0284710796_en-us_topic_0111325168_en-us_topic_0108275298_en-us_topic_0000001147041354_p189932517616">Before connecting CDM to a relational database, you need to upload the JDK 8 .jar driver of the relational database. Download the MySQL driver 5.1.48 from <a href="https://downloads.mysql.com/archives/c-j/" target="_blank" rel="noopener noreferrer">https://downloads.mysql.com/archives/c-j/</a>, obtain <strong id="dataartsstudio_01_0100__en-us_topic_0284710796_en-us_topic_0111325168_en-us_topic_0108275298_b7945214826">mysql-connector-java-5.1.48.jar</strong>, and upload it.</p>
</td>
<td class="cellrowborder" valign="top" width="32.6%" headers="mcps1.3.4.2.2.2.2.2.4.1.3 "><p id="dataartsstudio_01_0100__en-us_topic_0284710796_en-us_topic_0111325168_en-us_topic_0108275298_en-us_topic_0000001147041354_p899375564">-</p>
</td>
</tr>
</tbody>
</table>
</div>
</p></li><li id="dataartsstudio_01_0100__en-us_topic_0284710796_en-us_topic_0111325168_li1697949616149"><span>Click <span class="uicontrol" id="dataartsstudio_01_0100__en-us_topic_0284710796_en-us_topic_0111325168_uicontrol5119298426"><b>Save</b></span>. The <span class="uicontrol" id="dataartsstudio_01_0100__en-us_topic_0284710796_en-us_topic_0111325168_uicontrol31182964212"><b>Link Management</b></span> page is displayed.</span><p><div class="note" id="dataartsstudio_01_0100__en-us_topic_0284710796_en-us_topic_0111325168_note1896191114270"><img src="public_sys-resources/note_3.0-en-us.png"><span class="notetitle"> </span><div class="notebody"><p id="dataartsstudio_01_0100__en-us_topic_0284710796_en-us_topic_0111325168_p296110116274">If an error occurs during the saving, the security settings of the MySQL database are incorrect. In this case, you need to enable the EIP of the CDM cluster to access the MySQL database.</p>
</div></div>
</p></li></ol>
</div>
<div class="section" id="dataartsstudio_01_0100__en-us_topic_0284710796_section5774720191611"><a name="dataartsstudio_01_0100__en-us_topic_0284710796_section5774720191611"></a><a name="en-us_topic_0284710796_section5774720191611"></a><h4 class="sectiontitle">Creating an OBS Link</h4><ol id="dataartsstudio_01_0100__en-us_topic_0284710796_en-us_topic_0123434187_en-us_topic_0108275445_ol726314523353"><li id="dataartsstudio_01_0100__en-us_topic_0284710796_en-us_topic_0123434187_li13979142135415"><span>Click <span class="uicontrol" id="dataartsstudio_01_0100__en-us_topic_0284710796_en-us_topic_0123434187_uicontrol127563324020"><b>Job Management</b></span> in the <strong id="dataartsstudio_01_0100__en-us_topic_0284710796_en-us_topic_0123434187_b1980633144013">Operation</strong> column of the CDM cluster. On the displayed page, click the <strong id="dataartsstudio_01_0100__en-us_topic_0284710796_en-us_topic_0123434187_b1280233174012">Links</strong> tab and then <strong id="dataartsstudio_01_0100__en-us_topic_0284710796_en-us_topic_0123434187_b19811033164015">Create Link</strong>. The <strong id="dataartsstudio_01_0100__en-us_topic_0284710796_en-us_topic_0123434187_b281133315405">Select Connector</strong> page is displayed.</span><p><div class="fignone" id="dataartsstudio_01_0100__en-us_topic_0284710796_en-us_topic_0123434187_fig159791021145416"><span class="figcap"><b>Figure 1 </b>Selecting a connector type</span><br><span><img id="dataartsstudio_01_0100__en-us_topic_0284710796_en-us_topic_0123434187_en-us_topic_0108275477_image53893842012" src="en-us_image_0000002234235252.png" title="Click to enlarge" class="imgResize"></span></div>
</p></li><li id="dataartsstudio_01_0100__en-us_topic_0284710796_en-us_topic_0123434187_en-us_topic_0108275445_li38011752411"><span>Select <span class="parmvalue" id="dataartsstudio_01_0100__en-us_topic_0284710796_en-us_topic_0123434187_parmvalue27182373401"><b>Object Storage Service (OBS)</b></span> and click <span class="uicontrol" id="dataartsstudio_01_0100__en-us_topic_0284710796_en-us_topic_0123434187_uicontrol1271919377404"><b>Next</b></span> to configure parameters for the OBS link.</span><p><ul id="dataartsstudio_01_0100__en-us_topic_0284710796_en-us_topic_0123434187_en-us_topic_0108275445_ul1524835213519"><li id="dataartsstudio_01_0100__en-us_topic_0284710796_en-us_topic_0123434187_en-us_topic_0108275445_li82482528356"><strong id="dataartsstudio_01_0100__en-us_topic_0284710796_en-us_topic_0123434187_en-us_topic_0108275445_b87206318369">Name</strong>: Enter a custom link name, for example, <span class="uicontrol" id="dataartsstudio_01_0100__en-us_topic_0284710796_en-us_topic_0123434187_en-us_topic_0108275445_uicontrol3720231113614"><b>obslink</b></span>.</li><li id="dataartsstudio_01_0100__en-us_topic_0284710796_en-us_topic_0123434187_en-us_topic_0108275445_li9248852163516"><strong id="dataartsstudio_01_0100__en-us_topic_0284710796_en-us_topic_0123434187_en-us_topic_0108275445_b842352706113916">OBS Server</strong> and <strong id="dataartsstudio_01_0100__en-us_topic_0284710796_en-us_topic_0123434187_en-us_topic_0108275445_b842352706113940">Port</strong>: Enter the actual OBS address information.</li><li id="dataartsstudio_01_0100__en-us_topic_0284710796_en-us_topic_0123434187_en-us_topic_0108275445_li0248552153517"><strong id="dataartsstudio_01_0100__en-us_topic_0284710796_en-us_topic_0123434187_en-us_topic_0108275445_b84235270615565">AK</strong> and <strong id="dataartsstudio_01_0100__en-us_topic_0284710796_en-us_topic_0123434187_en-us_topic_0108275445_b84235270615568">SK</strong>: Enter the AK and SK used for logging in to OBS.<div class="p" id="dataartsstudio_01_0100__en-us_topic_0284710796_en-us_topic_0123434187_en-us_topic_0108275445_p13152215453">To obtain an access key, perform the following steps:<ol type="a" id="dataartsstudio_01_0100__en-us_topic_0284710796_en-us_topic_0123434187_en-us_topic_0108275445_en-us_topic_0000001129241845_en-us_topic_0183643042_ol535183018588"><li id="dataartsstudio_01_0100__en-us_topic_0284710796_en-us_topic_0123434187_en-us_topic_0108275445_en-us_topic_0000001129241845_en-us_topic_0183643042_li1535103025819">Log in to the management console, move the cursor to the username in the upper right corner, and select <strong id="dataartsstudio_01_0100__en-us_topic_0284710796_en-us_topic_0123434187_en-us_topic_0108275445_en-us_topic_0000001129241845_b1586023610364">My Credentials</strong> from the drop-down list.</li><li id="dataartsstudio_01_0100__en-us_topic_0284710796_en-us_topic_0123434187_en-us_topic_0108275445_en-us_topic_0000001129241845_en-us_topic_0183643042_li173533018584">On the <strong id="dataartsstudio_01_0100__en-us_topic_0284710796_en-us_topic_0123434187_en-us_topic_0108275445_en-us_topic_0000001129241845_b149721128172418">My Credentials</strong> page, choose <strong id="dataartsstudio_01_0100__en-us_topic_0284710796_en-us_topic_0123434187_en-us_topic_0108275445_en-us_topic_0000001129241845_b15803656132414">Access Keys</strong>, and click <strong id="dataartsstudio_01_0100__en-us_topic_0284710796_en-us_topic_0123434187_en-us_topic_0108275445_en-us_topic_0000001129241845_b2452152020258">Create Access Key</strong>. See <a href="#dataartsstudio_01_0100__en-us_topic_0284710796_en-us_topic_0123434187_en-us_topic_0108275445_en-us_topic_0000001129241845_en-us_topic_0183643042_fig1552229194615">Figure 2</a>.<div class="fignone" id="dataartsstudio_01_0100__en-us_topic_0284710796_en-us_topic_0123434187_en-us_topic_0108275445_en-us_topic_0000001129241845_en-us_topic_0183643042_fig1552229194615"><a name="dataartsstudio_01_0100__en-us_topic_0284710796_en-us_topic_0123434187_en-us_topic_0108275445_en-us_topic_0000001129241845_en-us_topic_0183643042_fig1552229194615"></a><a name="en-us_topic_0284710796_en-us_topic_0123434187_en-us_topic_0108275445_en-us_topic_0000001129241845_en-us_topic_0183643042_fig1552229194615"></a><span class="figcap"><b>Figure 2 </b>Clicking Create Access Key</span><br><span><img id="dataartsstudio_01_0100__en-us_topic_0284710796_en-us_topic_0123434187_en-us_topic_0108275445_en-us_topic_0000001129241845_image20389043111611" src="en-us_image_0000002269194761.png" title="Click to enlarge" class="imgResize"></span></div>
</li><li id="dataartsstudio_01_0100__en-us_topic_0284710796_en-us_topic_0123434187_en-us_topic_0108275445_en-us_topic_0000001129241845_en-us_topic_0183643042_li1535530185815">Click <strong id="dataartsstudio_01_0100__en-us_topic_0284710796_en-us_topic_0123434187_en-us_topic_0108275445_en-us_topic_0000001129241845_b8340319122819">OK</strong> and save the access key file as prompted. The access key file will be saved to your browser's configured download location. Open the <strong id="dataartsstudio_01_0100__en-us_topic_0284710796_en-us_topic_0123434187_en-us_topic_0108275445_en-us_topic_0000001129241845_b1940852512813">credentials.csv</strong> file to view <strong id="dataartsstudio_01_0100__en-us_topic_0284710796_en-us_topic_0123434187_en-us_topic_0108275445_en-us_topic_0000001129241845_b191574128718">Access Key Id</strong> and <strong id="dataartsstudio_01_0100__en-us_topic_0284710796_en-us_topic_0123434187_en-us_topic_0108275445_en-us_topic_0000001129241845_b175769149718">Secret Access Key</strong>.<div class="note" id="dataartsstudio_01_0100__en-us_topic_0284710796_en-us_topic_0123434187_en-us_topic_0108275445_en-us_topic_0000001129241845_note4554158201"><img src="public_sys-resources/note_3.0-en-us.png"><span class="notetitle"> </span><div class="notebody"><ul id="dataartsstudio_01_0100__en-us_topic_0284710796_en-us_topic_0123434187_en-us_topic_0108275445_en-us_topic_0000001129241845_ul25541081906"><li id="dataartsstudio_01_0100__en-us_topic_0284710796_en-us_topic_0123434187_en-us_topic_0108275445_en-us_topic_0000001129241845_li175541819018">Only two access keys can be added for each user.</li><li id="dataartsstudio_01_0100__en-us_topic_0284710796_en-us_topic_0123434187_en-us_topic_0108275445_en-us_topic_0000001129241845_li3554138305">To ensure access key security, the access key is automatically downloaded only when it is generated for the first time and cannot be obtained from the management console later. Keep them properly.</li></ul>
</div></div>
</li></ol>
</div>
</li></ul>
</p></li><li id="dataartsstudio_01_0100__en-us_topic_0284710796_en-us_topic_0123434187_en-us_topic_0108275445_li8248125203520"><span>Click <span class="uicontrol" id="dataartsstudio_01_0100__en-us_topic_0284710796_en-us_topic_0123434187_uicontrol1176911318388"><b>Save</b></span>. The <span class="uicontrol" id="dataartsstudio_01_0100__en-us_topic_0284710796_en-us_topic_0123434187_uicontrol3769031133812"><b>Link Management</b></span> page is displayed.</span></li></ol>
</div>
<div class="section" id="dataartsstudio_01_0100__en-us_topic_0284710796_section119151411712"><a name="dataartsstudio_01_0100__en-us_topic_0284710796_section119151411712"></a><a name="en-us_topic_0284710796_section119151411712"></a><h4 class="sectiontitle">Creating a Migration Job</h4><ol id="dataartsstudio_01_0100__en-us_topic_0284710796_en-us_topic_0123434187_ol139311427141216"><li id="dataartsstudio_01_0100__en-us_topic_0284710796_en-us_topic_0123434187_li12211241111211"><span>Choose <span class="menucascade" id="dataartsstudio_01_0100__en-us_topic_0284710796_menucascade8125161816272"><b><span class="uicontrol" id="dataartsstudio_01_0100__en-us_topic_0284710796_uicontrol4119201862714">Table/File Migration</span></b> &gt; <b><span class="uicontrol" id="dataartsstudio_01_0100__en-us_topic_0284710796_uicontrol141241418112714">Create Job</span></b></span> to create a job for exporting data from the MySQL database to OBS.</span><p><div class="fignone" id="dataartsstudio_01_0100__en-us_topic_0284710796_fig2095091110254"><span class="figcap"><b>Figure 3 </b>Creating a job for migrating data from MySQL to OBS</span><br><span><img id="dataartsstudio_01_0100__en-us_topic_0284710796_image11951711142518" src="en-us_image_0000002234237944.jpg" title="Click to enlarge" class="imgResize"></span></div>
<ul id="dataartsstudio_01_0100__en-us_topic_0284710796_en-us_topic_0123434187_ul11211104191217"><li id="dataartsstudio_01_0100__en-us_topic_0284710796_en-us_topic_0123434187_li1221164117123"><strong id="dataartsstudio_01_0100__en-us_topic_0284710796_b176655151221649">Job Name</strong>: Enter a unique name.</li><li id="dataartsstudio_01_0100__en-us_topic_0284710796_li16261428162612"><strong id="dataartsstudio_01_0100__en-us_topic_0284710796_b15359663521649">Source Job Configuration</strong><ul id="dataartsstudio_01_0100__en-us_topic_0284710796_ul2626528132612"><li id="dataartsstudio_01_0100__en-us_topic_0284710796_li17626028172611"><strong id="dataartsstudio_01_0100__en-us_topic_0284710796_b14451192917">Source Link Name</strong>: Select the <span class="parmvalue" id="dataartsstudio_01_0100__en-us_topic_0284710796_parmvalue1462612288262"><b>mysqllink</b></span> created in <a href="#dataartsstudio_01_0100__en-us_topic_0284710796_section4972205516016">Creating a MySQL Link</a>.</li><li id="dataartsstudio_01_0100__en-us_topic_0284710796_li291812664718"><strong id="dataartsstudio_01_0100__en-us_topic_0284710796_b59619317308">Use SQL Statement</strong>: Select <strong id="dataartsstudio_01_0100__en-us_topic_0284710796_b3156127133010">No</strong>.</li><li id="dataartsstudio_01_0100__en-us_topic_0284710796_li18627102882614"><strong id="dataartsstudio_01_0100__en-us_topic_0284710796_b1834351318309">Schema/Tablespace</strong>: name of the schema or tablespace from which data is to be extracted</li><li id="dataartsstudio_01_0100__en-us_topic_0284710796_li1335892719471"><strong id="dataartsstudio_01_0100__en-us_topic_0284710796_b11601669333">Table Name</strong>: name of the table from which data is to be extracted</li><li id="dataartsstudio_01_0100__en-us_topic_0284710796_li156270280265">Retain the default values of other optional parameters.</li></ul>
</li><li id="dataartsstudio_01_0100__en-us_topic_0284710796_en-us_topic_0123434187_li16211144119127"><strong id="dataartsstudio_01_0100__en-us_topic_0284710796_b91109436821649">Destination Job Configuration</strong><ul id="dataartsstudio_01_0100__en-us_topic_0284710796_en-us_topic_0123434187_ul32111741141219"><li id="dataartsstudio_01_0100__en-us_topic_0284710796_en-us_topic_0123434187_li42111641101218"><strong id="dataartsstudio_01_0100__en-us_topic_0284710796_b15470103617347">Destination Link Name</strong>: Select the <span class="uicontrol" id="dataartsstudio_01_0100__en-us_topic_0284710796_en-us_topic_0123434187_uicontrol172282414129"><b>obslink</b></span> created in <a href="#dataartsstudio_01_0100__en-us_topic_0284710796_section5774720191611">Creating an OBS Link</a>.</li><li id="dataartsstudio_01_0100__en-us_topic_0284710796_en-us_topic_0123434187_li2228134117121"><strong id="dataartsstudio_01_0100__en-us_topic_0284710796_b155454543421649">Bucket Name</strong>: Select the bucket from which the data will be migrated.</li><li id="dataartsstudio_01_0100__en-us_topic_0284710796_li1021672441114"><strong id="dataartsstudio_01_0100__en-us_topic_0284710796_b171991926203519">Write Directory</strong>: Enter the directory to which data is to be written on the OBS server.</li><li id="dataartsstudio_01_0100__en-us_topic_0284710796_en-us_topic_0123434187_li22262311623"><strong id="dataartsstudio_01_0100__en-us_topic_0284710796_b1925425519354">File Format</strong>: Select <strong id="dataartsstudio_01_0100__en-us_topic_0284710796_b854100193617">CSV</strong>.</li><li id="dataartsstudio_01_0100__en-us_topic_0284710796_en-us_topic_0123434187_li62282414121">Retain the default values of the optional parameters in <strong id="dataartsstudio_01_0100__en-us_topic_0284710796_b1110797921112259">Show Advanced Attributes</strong>.</li></ul>
</li></ul>
</p></li><li id="dataartsstudio_01_0100__en-us_topic_0284710796_en-us_topic_0123434187_li59151048111210"><span>Click <span class="uicontrol" id="dataartsstudio_01_0100__en-us_topic_0284710796_uicontrol15356102619361"><b>Next</b></span>. The <strong id="dataartsstudio_01_0100__en-us_topic_0284710796_b14357182683612">Map Field</strong> page is displayed. CDM automatically matches the source and destination fields, as shown in <a href="#dataartsstudio_01_0100__en-us_topic_0284710796_fig231883016327">Figure 4</a>.</span><p><ul id="dataartsstudio_01_0100__en-us_topic_0284710796_en-us_topic_0108275437_ul2086033675113"><li id="dataartsstudio_01_0100__en-us_topic_0284710796_en-us_topic_0108275437_li286063610513">If the field mapping is incorrect, you can drag the fields to adjust the mapping.</li><li id="dataartsstudio_01_0100__en-us_topic_0284710796_en-us_topic_0108275437_li557993195213">The expressions in CDM support field conversion of common character strings, dates, and values. </li></ul>
<div class="fignone" id="dataartsstudio_01_0100__en-us_topic_0284710796_fig231883016327"><a name="dataartsstudio_01_0100__en-us_topic_0284710796_fig231883016327"></a><a name="en-us_topic_0284710796_fig231883016327"></a><span class="figcap"><b>Figure 4 </b>Table-to-file field mapping</span><br><span><img id="dataartsstudio_01_0100__en-us_topic_0284710796_image15318330153217" src="en-us_image_0000002269117305.jpg" title="Click to enlarge" class="imgResize"></span></div>
</p></li><li id="dataartsstudio_01_0100__en-us_topic_0284710796_en-us_topic_0123434187_li47753211373"><span>Click <span class="uicontrol" id="dataartsstudio_01_0100__en-us_topic_0284710796_en-us_topic_0183642955_en-us_topic_0108275315_uc99b958ba8e44f9fa93adacd0c6a0ae6"><b>Next</b></span> and set task parameters. Generally, retain the default values of all parameters.</span><p><div class="p" id="dataartsstudio_01_0100__en-us_topic_0284710796_en-us_topic_0183642955_en-us_topic_0108275315_p574914560220">In this step, you can configure the following optional functions:<ul id="dataartsstudio_01_0100__en-us_topic_0284710796_en-us_topic_0183642955_en-us_topic_0108275315_ul65067533203334"><li id="dataartsstudio_01_0100__en-us_topic_0284710796_en-us_topic_0183642955_en-us_topic_0108275315_li37800576203334"><strong id="dataartsstudio_01_0100__en-us_topic_0284710796_b207868990221649">Retry Upon Failure</strong>: If the job fails to be executed, you can determine whether to automatically retry. Retain the default value <span class="parmvalue" id="dataartsstudio_01_0100__en-us_topic_0284710796_parmvalue66663224421649"><b>Never</b></span>.</li><li id="dataartsstudio_01_0100__en-us_topic_0284710796_en-us_topic_0183642955_en-us_topic_0108275315_li158210387356"><strong id="dataartsstudio_01_0100__en-us_topic_0284710796_b175615251821649">Group</strong>: Select the group to which the job belongs. The default group is <span class="parmvalue" id="dataartsstudio_01_0100__en-us_topic_0284710796_parmvalue146417988121649"><b>DEFAULT</b></span>. On the <span class="wintitle" id="dataartsstudio_01_0100__en-us_topic_0284710796_en-us_topic_0183642955_en-us_topic_0108275315_wintitle145148544320"><b>Job Management</b></span> page, jobs can be displayed, started, or exported by group.</li><li id="dataartsstudio_01_0100__en-us_topic_0284710796_en-us_topic_0183642955_en-us_topic_0108275315_li33236331203339"><strong id="dataartsstudio_01_0100__en-us_topic_0284710796_b24701535721649">Schedule Execution</strong>: Enable it if you need to configure scheduled jobs. Retain the default value <span class="parmvalue" id="dataartsstudio_01_0100__en-us_topic_0284710796_en-us_topic_0183642955_en-us_topic_0108275315_parmvalue1210131152512"><b>No</b></span>.</li><li id="dataartsstudio_01_0100__en-us_topic_0284710796_en-us_topic_0183642955_en-us_topic_0108275315_li65386286258"><strong id="dataartsstudio_01_0100__en-us_topic_0284710796_b733503715382">Concurrent Extractors</strong>: Enter the number of extractors to be concurrently executed. CDM supports concurrent extraction of MySQL data. If indexes are configured for the source table, you can increase the number of concurrent extractors to accelerate the migration.</li><li id="dataartsstudio_01_0100__en-us_topic_0284710796_en-us_topic_0183642955_en-us_topic_0108275315_li1396265172616"><strong id="dataartsstudio_01_0100__en-us_topic_0284710796_b203010158821649">Write Dirty Data</strong>: Specify this parameter if data that fails to be processed or filtered out during job execution needs to be written to OBS for future viewing. Before writing dirty data, create an OBS link. For file-to-table data migration, you are advised to write dirty data.</li><li id="dataartsstudio_01_0100__en-us_topic_0284710796_en-us_topic_0183642955_en-us_topic_0108275315_li26341820112614"><strong id="dataartsstudio_01_0100__en-us_topic_0284710796_b106046531021649">Delete Job After Completion</strong>: Retain the default value <span class="parmvalue" id="dataartsstudio_01_0100__en-us_topic_0284710796_parmvalue88748185421649"><b>Do not delete</b></span>. You can also set this parameter to <strong id="dataartsstudio_01_0100__en-us_topic_0284710796_b637291611416">Delete</strong> to prevent an accumulation of too many migration jobs.</li></ul>
</div>
</p></li><li id="dataartsstudio_01_0100__en-us_topic_0284710796_en-us_topic_0123434187_li1577510223710"><span>Click <span class="uicontrol" id="dataartsstudio_01_0100__en-us_topic_0284710796_en-us_topic_0108275326_uicontrol1362446142110"><b>Save and Run</b></span>. The <strong id="dataartsstudio_01_0100__en-us_topic_0284710796_en-us_topic_0108275326_b867281052113">Job Management</strong> page is displayed, on which you can view the job execution progress and result.</span></li><li id="dataartsstudio_01_0100__en-us_topic_0284710796_en-us_topic_0123434187_li1189115352456"><span>After the job is successfully executed, in the <strong id="dataartsstudio_01_0100__en-us_topic_0284710796_en-us_topic_0108275326_b78588166211">Operation</strong> column of the job, click <span class="uicontrol" id="dataartsstudio_01_0100__en-us_topic_0284710796_en-us_topic_0108275326_uicontrol6858616102110"><b>Historical Record</b></span> to view the job's historical execution records and read/write statistics.</span><p><p id="dataartsstudio_01_0100__en-us_topic_0284710796_en-us_topic_0108275326_p1891735144518">On the <strong id="dataartsstudio_01_0100__en-us_topic_0284710796_en-us_topic_0108275326_b1470242882110">Historical Record</strong> page, click <span class="uicontrol" id="dataartsstudio_01_0100__en-us_topic_0284710796_en-us_topic_0108275326_uicontrol147021628182113"><b>Log</b></span> to view the job logs.</p>
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