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zhengxiu 93d856d5c5 css umn 25.6.0 version 
Reviewed-by: Pruthi, Vineet <vineet.pruthi@t-systems.com>
Co-authored-by: zhengxiu <zhengxiu@huawei.com>
Co-committed-by: zhengxiu <zhengxiu@huawei.com>
2025-11-25 11:34:43 +00:00

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<a name="EN-US_TOPIC_0000001965416769"></a><a name="EN-US_TOPIC_0000001965416769"></a>
<h1 class="topictitle1">Creating an OpenSearch Cluster</h1>
<div id="body0000001584149004"><div class="p" id="EN-US_TOPIC_0000001965416769__en-us_topic_0000001268594549_p1650716241016">This topic describes how to create an OpenSearch cluster. You can create an OpenSearch cluster in either of the following ways:<ul id="EN-US_TOPIC_0000001965416769__ul780852510465"><li id="EN-US_TOPIC_0000001965416769__li1180802511467">Method 1: Create an OpenSearch cluster on the CSS management console. </li><li id="EN-US_TOPIC_0000001965416769__li198097250462">Method 2: Create an OpenSearch cluster using CSS APIs. For details, see section "Creating a Cluster" in <em id="EN-US_TOPIC_0000001965416769__i58641845171213">Cloud Search Service API Reference</em>.</li></ul>
</div>
<div class="section" id="EN-US_TOPIC_0000001965416769__en-us_topic_0000001268594549_section32701230131812"><h4 class="sectiontitle">Scenarios</h4><p id="EN-US_TOPIC_0000001965416769__en-us_topic_0000001938218212_p1853617149422"><a href="#EN-US_TOPIC_0000001965416769__en-us_topic_0000001938218212_table143555312413">Table 1</a> lists key parameters that differentiate between different types of clusters.</p>
<div class="tablenoborder"><a name="EN-US_TOPIC_0000001965416769__en-us_topic_0000001938218212_table143555312413"></a><a name="en-us_topic_0000001938218212_table143555312413"></a><table cellpadding="4" cellspacing="0" summary="" id="EN-US_TOPIC_0000001965416769__en-us_topic_0000001938218212_table143555312413" frame="border" border="1" rules="all"><caption><b>Table 1 </b>Parameters that differentiate between different types of clusters</caption><thead align="left"><tr id="EN-US_TOPIC_0000001965416769__en-us_topic_0000001938218212_row7355113184119"><th align="left" class="cellrowborder" valign="top" width="28.000000000000004%" id="mcps1.3.2.3.2.6.1.1"><p id="EN-US_TOPIC_0000001965416769__en-us_topic_0000001938218212_p1792319196412">Cluster Type</p>
</th>
<th align="left" class="cellrowborder" valign="top" width="18%" id="mcps1.3.2.3.2.6.1.2"><p id="EN-US_TOPIC_0000001965416769__en-us_topic_0000001938218212_p193558384119">Security Mode</p>
</th>
<th align="left" class="cellrowborder" valign="top" width="18%" id="mcps1.3.2.3.2.6.1.3"><p id="EN-US_TOPIC_0000001965416769__en-us_topic_0000001938218212_p056813711442">HTTPS Access</p>
</th>
<th align="left" class="cellrowborder" valign="top" width="18%" id="mcps1.3.2.3.2.6.1.4"><p id="EN-US_TOPIC_0000001965416769__en-us_topic_0000001938218212_p735518364113">Internet Access</p>
</th>
<th align="left" class="cellrowborder" valign="top" width="18%" id="mcps1.3.2.3.2.6.1.5"><p id="EN-US_TOPIC_0000001965416769__en-us_topic_0000001938218212_p635510354117"><span class="parmvalue" id="EN-US_TOPIC_0000001965416769__parmvalue755565714122"><b>OpenSearch Dashboards Public Network Access</b></span></p>
</th>
</tr>
</thead>
<tbody><tr id="EN-US_TOPIC_0000001965416769__en-us_topic_0000001938218212_row135583124118"><td class="cellrowborder" valign="top" width="28.000000000000004%" headers="mcps1.3.2.3.2.6.1.1 "><p id="EN-US_TOPIC_0000001965416769__en-us_topic_0000001938218212_p13923219164113">Cluster with the security mode disabled</p>
</td>
<td class="cellrowborder" valign="top" width="18%" headers="mcps1.3.2.3.2.6.1.2 "><p id="EN-US_TOPIC_0000001965416769__en-us_topic_0000001938218212_p9355103154113">Disabled</p>
</td>
<td class="cellrowborder" valign="top" width="18%" headers="mcps1.3.2.3.2.6.1.3 "><p id="EN-US_TOPIC_0000001965416769__en-us_topic_0000001938218212_p9956053204316">N/A</p>
</td>
<td class="cellrowborder" valign="top" width="18%" headers="mcps1.3.2.3.2.6.1.4 "><p id="EN-US_TOPIC_0000001965416769__en-us_topic_0000001938218212_p53553318419">Cannot be enabled</p>
</td>
<td class="cellrowborder" valign="top" width="18%" headers="mcps1.3.2.3.2.6.1.5 "><p id="EN-US_TOPIC_0000001965416769__en-us_topic_0000001938218212_p6621334219">Cannot be enabled</p>
</td>
</tr>
<tr id="EN-US_TOPIC_0000001965416769__en-us_topic_0000001938218212_row113561639418"><td class="cellrowborder" valign="top" width="28.000000000000004%" headers="mcps1.3.2.3.2.6.1.1 "><p id="EN-US_TOPIC_0000001965416769__en-us_topic_0000001938218212_p492341917410">Cluster in security mode + HTTP</p>
</td>
<td class="cellrowborder" valign="top" width="18%" headers="mcps1.3.2.3.2.6.1.2 "><p id="EN-US_TOPIC_0000001965416769__en-us_topic_0000001938218212_p23561230414">Enabled</p>
</td>
<td class="cellrowborder" valign="top" width="18%" headers="mcps1.3.2.3.2.6.1.3 "><p id="EN-US_TOPIC_0000001965416769__en-us_topic_0000001938218212_p8956553134317">Disabled</p>
</td>
<td class="cellrowborder" valign="top" width="18%" headers="mcps1.3.2.3.2.6.1.4 "><p id="EN-US_TOPIC_0000001965416769__en-us_topic_0000001938218212_p42802594219">Cannot be enabled</p>
</td>
<td class="cellrowborder" valign="top" width="18%" headers="mcps1.3.2.3.2.6.1.5 "><p id="EN-US_TOPIC_0000001965416769__en-us_topic_0000001938218212_p1826017817427">Can be enabled</p>
</td>
</tr>
<tr id="EN-US_TOPIC_0000001965416769__en-us_topic_0000001938218212_row7356631418"><td class="cellrowborder" valign="top" width="28.000000000000004%" headers="mcps1.3.2.3.2.6.1.1 "><p id="EN-US_TOPIC_0000001965416769__en-us_topic_0000001938218212_p192318199415">Cluster in security mode + HTTPS</p>
</td>
<td class="cellrowborder" valign="top" width="18%" headers="mcps1.3.2.3.2.6.1.2 "><p id="EN-US_TOPIC_0000001965416769__en-us_topic_0000001938218212_p235615354117">Enabled</p>
</td>
<td class="cellrowborder" valign="top" width="18%" headers="mcps1.3.2.3.2.6.1.3 "><p id="EN-US_TOPIC_0000001965416769__en-us_topic_0000001938218212_p9956953104318">Enabled</p>
</td>
<td class="cellrowborder" valign="top" width="18%" headers="mcps1.3.2.3.2.6.1.4 "><p id="EN-US_TOPIC_0000001965416769__en-us_topic_0000001938218212_p19121171424216">Can be enabled</p>
</td>
<td class="cellrowborder" valign="top" width="18%" headers="mcps1.3.2.3.2.6.1.5 "><p id="EN-US_TOPIC_0000001965416769__en-us_topic_0000001938218212_p14175201584217">Can be enabled</p>
</td>
</tr>
</tbody>
</table>
</div>
</div>
<div class="section" id="EN-US_TOPIC_0000001965416769__section15121454102317"><h4 class="sectiontitle">Prerequisites</h4><p id="EN-US_TOPIC_0000001965416769__p1069335618238">You have planned the OpenSearch cluster configuration by following the instructions in <a href="css_01_0028.html">OpenSearch Cluster Planning Suggestions</a>.</p>
</div>
<div class="section" id="EN-US_TOPIC_0000001965416769__en-us_topic_0000001268594549_section781857123412"><h4 class="sectiontitle">Creating a Cluster</h4><ol id="EN-US_TOPIC_0000001965416769__en-us_topic_0000001268594549_ol175241191249"><li id="EN-US_TOPIC_0000001965416769__en-us_topic_0000001268594549_li5509181942419"><span id="EN-US_TOPIC_0000001965416769__ph9800646111212">Log in to the CSS management console.</span></li><li id="EN-US_TOPIC_0000001965416769__en-us_topic_0000001268154521_li6012554340">On the <span class="uicontrol" id="EN-US_TOPIC_0000001965416769__uicontrol1278428722114116"><b>Dashboard</b></span> page, click <span class="uicontrol" id="EN-US_TOPIC_0000001965416769__uicontrol1114456970114116"><b><span id="EN-US_TOPIC_0000001965416769__text872223413114116">Create Cluster</span></b></span> in the upper right corner. The <strong id="EN-US_TOPIC_0000001965416769__b428286276114116">Create Cluster</strong> page is displayed.<p id="EN-US_TOPIC_0000001965416769__p753285116318">Alternatively, choose <strong id="EN-US_TOPIC_0000001965416769__b310014911430">Clusters</strong> &gt; <strong id="EN-US_TOPIC_0000001965416769__b6100164912437">OpenSearch</strong> in the navigation tree on the left. Click <span class="uicontrol" id="EN-US_TOPIC_0000001965416769__uicontrol1410194914318"><b><span id="EN-US_TOPIC_0000001965416769__text9101194911432">Create Cluster</span></b></span> in the upper right corner. The <strong id="EN-US_TOPIC_0000001965416769__b41012494434">Create Cluster</strong> page is displayed.</p>
</li><li id="EN-US_TOPIC_0000001965416769__li10210151122814">On the <strong id="EN-US_TOPIC_0000001965416769__b1698624344713">Basic Configuration</strong> page, configure basic information and resources for the OpenSearch cluster.
<div class="tablenoborder"><table cellpadding="4" cellspacing="0" summary="" id="EN-US_TOPIC_0000001965416769__table12937717172919" frame="border" border="1" rules="all"><caption><b>Table 2 </b>Basic settings of the OpenSearch cluster</caption><thead align="left"><tr id="EN-US_TOPIC_0000001965416769__en-us_topic_0000001938218212_row6938191792916"><th align="left" class="cellrowborder" valign="top" width="30%" id="mcps1.3.4.2.3.2.2.3.1.1"><p id="EN-US_TOPIC_0000001965416769__en-us_topic_0000001938218212_p893871752911">Parameter</p>
</th>
<th align="left" class="cellrowborder" valign="top" width="70%" id="mcps1.3.4.2.3.2.2.3.1.2"><p id="EN-US_TOPIC_0000001965416769__en-us_topic_0000001938218212_p49381517172913">Description</p>
</th>
</tr>
</thead>
<tbody><tr id="EN-US_TOPIC_0000001965416769__en-us_topic_0000001938218212_row1893891719292"><td class="cellrowborder" valign="top" width="30%" headers="mcps1.3.4.2.3.2.2.3.1.1 "><p id="EN-US_TOPIC_0000001965416769__en-us_topic_0000001938218212_p96193415305">Region</p>
</td>
<td class="cellrowborder" valign="top" width="70%" headers="mcps1.3.4.2.3.2.2.3.1.2 "><p id="EN-US_TOPIC_0000001965416769__p14453728143913">Select the region where the cluster is located.</p>
<p id="EN-US_TOPIC_0000001965416769__p174542028183916">ECSs in different regions cannot communicate with each other over an intranet. For lower network latency and quicker resource access, select the nearest region.</p>
<p id="EN-US_TOPIC_0000001965416769__en-us_topic_0000001938218212_p361974173012">Currently, only <strong id="EN-US_TOPIC_0000001965416769__b1907325743114116">eu-de</strong> and <strong id="EN-US_TOPIC_0000001965416769__b2074461538114116">eu-nl</strong> are supported.</p>
</td>
</tr>
<tr id="EN-US_TOPIC_0000001965416769__en-us_topic_0000001938218212_row10938617192914"><td class="cellrowborder" valign="top" width="30%" headers="mcps1.3.4.2.3.2.2.3.1.1 "><p id="EN-US_TOPIC_0000001965416769__en-us_topic_0000001938218212_p26192416302">AZ</p>
</td>
<td class="cellrowborder" valign="top" width="70%" headers="mcps1.3.4.2.3.2.2.3.1.2 "><p id="EN-US_TOPIC_0000001965416769__en-us_topic_0000001938218212_p1619134116304">Select one or more AZs associated with the cluster region.</p>
<p id="EN-US_TOPIC_0000001965416769__en-us_topic_0000001938218212_p106198413301">A maximum of three AZs can be configured. For details about the use of multiple AZs, see <a href="css_01_0088.html#EN-US_TOPIC_0000002353430533__en-us_topic_0000002316900222_section14999164703320">Suggestions on Multi-AZ Deployment</a>.</p>
</td>
</tr>
<tr id="EN-US_TOPIC_0000001965416769__en-us_topic_0000001938218212_row09387179293"><td class="cellrowborder" valign="top" width="30%" headers="mcps1.3.4.2.3.2.2.3.1.1 "><p id="EN-US_TOPIC_0000001965416769__en-us_topic_0000001938218212_p1193881720299">Type</p>
</td>
<td class="cellrowborder" valign="top" width="70%" headers="mcps1.3.4.2.3.2.2.3.1.2 "><p id="EN-US_TOPIC_0000001965416769__en-us_topic_0000001938218212_p8938517172912">Choose <span class="parmvalue" id="EN-US_TOPIC_0000001965416769__en-us_topic_0000001938218212_parmvalue129524384712"><b>OpenSearch</b></span>.</p>
</td>
</tr>
<tr id="EN-US_TOPIC_0000001965416769__en-us_topic_0000001938218212_row393811718293"><td class="cellrowborder" valign="top" width="30%" headers="mcps1.3.4.2.3.2.2.3.1.1 "><p id="EN-US_TOPIC_0000001965416769__en-us_topic_0000001938218212_p1931734104212">Version</p>
</td>
<td class="cellrowborder" valign="top" width="70%" headers="mcps1.3.4.2.3.2.2.3.1.2 "><p id="EN-US_TOPIC_0000001965416769__en-us_topic_0000001938218212_p1193193464212">Select a cluster version from the drop-down list.</p>
</td>
</tr>
<tr id="EN-US_TOPIC_0000001965416769__en-us_topic_0000001938218212_row193851722916"><td class="cellrowborder" valign="top" width="30%" headers="mcps1.3.4.2.3.2.2.3.1.1 "><p id="EN-US_TOPIC_0000001965416769__en-us_topic_0000001938218212_p1993103494216">Name</p>
</td>
<td class="cellrowborder" valign="top" width="70%" headers="mcps1.3.4.2.3.2.2.3.1.2 "><p id="EN-US_TOPIC_0000001965416769__en-us_topic_0000001938218212_p209311534154215">User-defined cluster name.</p>
<p id="EN-US_TOPIC_0000001965416769__p240012526914">The cluster name must start with a letter and can contain 4 to 32 characters. Only letters, digits, hyphens (-), and underscores (_) are allowed.</p>
</td>
</tr>
<tr id="EN-US_TOPIC_0000001965416769__row81623335122"><td class="cellrowborder" valign="top" width="30%" headers="mcps1.3.4.2.3.2.2.3.1.1 "><p id="EN-US_TOPIC_0000001965416769__p1616363317124">Cluster Description</p>
</td>
<td class="cellrowborder" valign="top" width="70%" headers="mcps1.3.4.2.3.2.2.3.1.2 "><p id="EN-US_TOPIC_0000001965416769__p131701058288">Add a description for the cluster for easy recognition.</p>
<p id="EN-US_TOPIC_0000001965416769__p14182051141016">The value can contain 0 to 128 characters.</p>
</td>
</tr>
<tr id="EN-US_TOPIC_0000001965416769__en-us_topic_0000001938218212_row169728477423"><td class="cellrowborder" valign="top" width="30%" headers="mcps1.3.4.2.3.2.2.3.1.1 "><p id="EN-US_TOPIC_0000001965416769__en-us_topic_0000001938218212_p1900108448">Nodes</p>
</td>
<td class="cellrowborder" valign="top" width="70%" headers="mcps1.3.4.2.3.2.2.3.1.2 "><p id="EN-US_TOPIC_0000001965416769__en-us_topic_0000001938218212_p1090016074417">Number of nodes in the cluster. Select a number from 1 to 32. You are advised to configure at least three nodes to ensure cluster availability.</p>
<ul id="EN-US_TOPIC_0000001965416769__en-us_topic_0000002271391389_ul1317613871513"><li id="EN-US_TOPIC_0000001965416769__en-us_topic_0000002271391389_li6704174712157">If the cluster has no client nodes, the data nodes will need to handle the additional task of query request distribution and data analysis.</li><li id="EN-US_TOPIC_0000001965416769__en-us_topic_0000002271391389_li11176163817156">If the cluster has no master nodes, the data nodes will also need to handle cluster management.</li></ul>
<div class="note" id="EN-US_TOPIC_0000001965416769__note14638134191917"><span class="notetitle"> NOTE: </span><div class="notebody"><p id="EN-US_TOPIC_0000001965416769__p176382047195">If the number of data nodes in a cluster is not evenly divisible by the number of AZs, data in the cluster may be unevenly distributed, affecting data query or write performance.</p>
</div></div>
</td>
</tr>
<tr id="EN-US_TOPIC_0000001965416769__en-us_topic_0000001938218212_row1217020502430"><td class="cellrowborder" valign="top" width="30%" headers="mcps1.3.4.2.3.2.2.3.1.1 "><p id="EN-US_TOPIC_0000001965416769__en-us_topic_0000001938218212_p590013004419">CPU Architecture</p>
</td>
<td class="cellrowborder" valign="top" width="70%" headers="mcps1.3.4.2.3.2.2.3.1.2 "><p id="EN-US_TOPIC_0000001965416769__en-us_topic_0000001938218212_p1590016044420"><span class="parmvalue" id="EN-US_TOPIC_0000001965416769__parmvalue2142905030114116"><b>x86</b></span>. The supported types depend on the actual regional environment.</p>
</td>
</tr>
<tr id="EN-US_TOPIC_0000001965416769__en-us_topic_0000001938218212_row9440165074315"><td class="cellrowborder" valign="top" width="30%" headers="mcps1.3.4.2.3.2.2.3.1.1 "><p id="EN-US_TOPIC_0000001965416769__en-us_topic_0000001938218212_p14901160144415">Node Specifications</p>
</td>
<td class="cellrowborder" valign="top" width="70%" headers="mcps1.3.4.2.3.2.2.3.1.2 "><p id="EN-US_TOPIC_0000001965416769__en-us_topic_0000001938218212_p29010018444">Data node flavor. You can select a specified specification based on your needs. Each cluster supports only one specification.</p>
<p id="EN-US_TOPIC_0000001965416769__en-us_topic_0000001938218212_p199010074413">After you select a flavor, the CPU and memory corresponding to the current specification are displayed below. For example, if you select <strong id="EN-US_TOPIC_0000001965416769__b1979209189114116">css.medium.8</strong>, then <strong id="EN-US_TOPIC_0000001965416769__b289454555114116">1 vCPUs | 8 GB</strong> will be displayed, indicating that the node flavor you select contains one vCPU and 8 GB memory.</p>
</td>
</tr>
<tr id="EN-US_TOPIC_0000001965416769__en-us_topic_0000001938218212_row4637195017436"><td class="cellrowborder" valign="top" width="30%" headers="mcps1.3.4.2.3.2.2.3.1.1 "><p id="EN-US_TOPIC_0000001965416769__en-us_topic_0000001938218212_p3901506447">Node Storage Type</p>
</td>
<td class="cellrowborder" valign="top" width="70%" headers="mcps1.3.4.2.3.2.2.3.1.2 "><p id="EN-US_TOPIC_0000001965416769__en-us_topic_0000001938218212_p129011600445">If you select EVS for node storage, you need to further select the EVS disk type for data nodes of the cluster. Options include Common I/O, High I/O, Ultra-high I/O.</p>
</td>
</tr>
<tr id="EN-US_TOPIC_0000001965416769__en-us_topic_0000001938218212_row19804105064311"><td class="cellrowborder" valign="top" width="30%" headers="mcps1.3.4.2.3.2.2.3.1.1 "><p id="EN-US_TOPIC_0000001965416769__en-us_topic_0000001938218212_p179017064416">Node Storage<span id="EN-US_TOPIC_0000001965416769__en-us_topic_0000001938218212_text1990117018441"> Capacity</span></p>
</td>
<td class="cellrowborder" valign="top" width="70%" headers="mcps1.3.4.2.3.2.2.3.1.2 "><p id="EN-US_TOPIC_0000001965416769__en-us_topic_0000001938218212_p390100154410">Data node storage capacity. Its value range varies with node specifications.</p>
<p id="EN-US_TOPIC_0000001965416769__en-us_topic_0000001938218212_p1190110034417">The node storage capacity must be a multiple of 20.</p>
</td>
</tr>
<tr id="EN-US_TOPIC_0000001965416769__en-us_topic_0000001938218212_row1611335118439"><td class="cellrowborder" valign="top" width="30%" headers="mcps1.3.4.2.3.2.2.3.1.1 "><p id="EN-US_TOPIC_0000001965416769__en-us_topic_0000001938218212_p17903100445">Master node</p>
</td>
<td class="cellrowborder" valign="top" width="70%" headers="mcps1.3.4.2.3.2.2.3.1.2 "><p id="EN-US_TOPIC_0000001965416769__en-us_topic_0000001938218212_p209031013444">The master node is responsible for important cluster management tasks, such as metadata management, index creation and deletion, and shard allocation. It plays a critical role in metadata management, node management, stability guarantee, and cluster operation control for large-scale clusters.</p>
<p id="EN-US_TOPIC_0000001965416769__en-us_topic_0000001938218212_p2090316010445">After enabling the master node, specify <span class="parmname" id="EN-US_TOPIC_0000001965416769__parmname407046967114116"><b>Node Specifications</b></span>, <strong id="EN-US_TOPIC_0000001965416769__b1532318539114116">Nodes</strong>, and <span class="parmname" id="EN-US_TOPIC_0000001965416769__parmname46223316114116"><b>Node Storage Type</b></span>. The value of <span class="parmname" id="EN-US_TOPIC_0000001965416769__parmname1149228306114116"><b>Nodes</b></span> must be an odd number greater than or equal to 3. Up to nine nodes are supported. The value of <strong id="EN-US_TOPIC_0000001965416769__b2099770034114116">Node Storage Capacity</strong> is fixed. You can select a storage type based on your needs.</p>
</td>
</tr>
<tr id="EN-US_TOPIC_0000001965416769__en-us_topic_0000001938218212_row5270551134312"><td class="cellrowborder" valign="top" width="30%" headers="mcps1.3.4.2.3.2.2.3.1.1 "><p id="EN-US_TOPIC_0000001965416769__en-us_topic_0000001938218212_p1903407449">Client node</p>
</td>
<td class="cellrowborder" valign="top" width="70%" headers="mcps1.3.4.2.3.2.2.3.1.2 "><p id="EN-US_TOPIC_0000001965416769__en-us_topic_0000001938218212_p159038011446">Client nodes receive and coordinate external requests, such as search and write requests. They play an important role in handling high-load queries, complex aggregations, managing a large number of shards, and improving cluster scalability.</p>
<p id="EN-US_TOPIC_0000001965416769__en-us_topic_0000001938218212_p189049016442">After enabling the client node, specify <span class="parmname" id="EN-US_TOPIC_0000001965416769__parmname470867022114116"><b>Node Specifications</b></span>, <strong id="EN-US_TOPIC_0000001965416769__b720361274114116">Nodes</strong> and <span class="parmname" id="EN-US_TOPIC_0000001965416769__parmname1521445073114116"><b>Node Storage Type</b></span>. The value of <strong id="EN-US_TOPIC_0000001965416769__b2058540681114116">Nodes</strong> ranges from 1 to 32. The value of <strong id="EN-US_TOPIC_0000001965416769__b936486335114116">Node Storage Capacity</strong> is fixed. You can select a storage type based on your needs.</p>
</td>
</tr>
<tr id="EN-US_TOPIC_0000001965416769__en-us_topic_0000001938218212_row1342275114431"><td class="cellrowborder" valign="top" width="30%" headers="mcps1.3.4.2.3.2.2.3.1.1 "><p id="EN-US_TOPIC_0000001965416769__en-us_topic_0000001938218212_p4904601440">Cold data node</p>
</td>
<td class="cellrowborder" valign="top" width="70%" headers="mcps1.3.4.2.3.2.2.3.1.2 "><p id="EN-US_TOPIC_0000001965416769__en-us_topic_0000001938218212_p29046074414">Cold data nodes are used to store query latency-insensitive data in large quantities. They offer an effective way to manage large datasets and cut storage costs.</p>
<p id="EN-US_TOPIC_0000001965416769__en-us_topic_0000001938218212_p1890410074418">After enabling cold data nodes, configure <strong id="EN-US_TOPIC_0000001965416769__b2063677975114116">Node Specifications</strong>, <strong id="EN-US_TOPIC_0000001965416769__b946184635114116">Nodes</strong>, <strong id="EN-US_TOPIC_0000001965416769__b1083921280114116">Node Storage Type</strong>, and <strong id="EN-US_TOPIC_0000001965416769__b746249495114116">Node Storage Capacity</strong>. The value of <strong id="EN-US_TOPIC_0000001965416769__b434600131114116">Nodes</strong> ranges from 1 to 32. Select <strong id="EN-US_TOPIC_0000001965416769__b143195349114116">Node Storage Type</strong> and <strong id="EN-US_TOPIC_0000001965416769__b593791927114116">Node Storage Capacity</strong> as required.</p>
<p id="EN-US_TOPIC_0000001965416769__en-us_topic_0000001938218212_p1290430134414">When cold data nodes are enabled, you can switch between cold and hot data nodes. For details, see <a href="css_01_0200.html">Switching Between Hot and Cold Storage for an OpenSearch Cluster</a>.</p>
<div class="note" id="EN-US_TOPIC_0000001965416769__note115615251266"><span class="notetitle"> NOTE: </span><div class="notebody"><p id="EN-US_TOPIC_0000001965416769__p1156152514268">If the number of cold data nodes in a cluster is not evenly divisible by the number of AZs, data in the cluster may be unevenly distributed, affecting data query or write performance.</p>
</div></div>
</td>
</tr>
<tr id="EN-US_TOPIC_0000001965416769__en-us_topic_0000001938218212_row55896517433"><td class="cellrowborder" valign="top" width="30%" headers="mcps1.3.4.2.3.2.2.3.1.1 "><p id="EN-US_TOPIC_0000001965416769__en-us_topic_0000001938218212_p1858915512430">Enterprise Project</p>
</td>
<td class="cellrowborder" valign="top" width="70%" headers="mcps1.3.4.2.3.2.2.3.1.2 "><p id="EN-US_TOPIC_0000001965416769__en-us_topic_0000001938218212_p1688445534516">When creating a CSS cluster, you can bind an enterprise project to the cluster if you have enabled the enterprise project function.</p>
<p id="EN-US_TOPIC_0000001965416769__en-us_topic_0000001938218212_p7911161074511">Select an enterprise project from the <strong id="EN-US_TOPIC_0000001965416769__b1218111006114116">Enterprise Project</strong> drop-down list, or click <strong id="EN-US_TOPIC_0000001965416769__b1786301806114116">View Enterprise Project</strong> to go to the <strong id="EN-US_TOPIC_0000001965416769__b1437784057114116">Enterprise Project Management Service</strong> page and check existing enterprise projects.</p>
</td>
</tr>
</tbody>
</table>
</div>
<div class="fignone" id="EN-US_TOPIC_0000001965416769__fig1994143124416"><span class="figcap"><b>Figure 1 </b>Setting cluster node specifications</span><br><span><img id="EN-US_TOPIC_0000001965416769__image149941443124411" src="figure/en-us_image_0000001999805533.png"></span></div>
</li><li id="EN-US_TOPIC_0000001965416769__li4906101825320">Click <strong id="EN-US_TOPIC_0000001965416769__b240276631114116">Next: Network</strong>.</li><li id="EN-US_TOPIC_0000001965416769__li099417175414">On the <strong id="EN-US_TOPIC_0000001965416769__b16157131482916">Network</strong> page, configure the network settings and security mode for the OpenSearch cluster.
<div class="tablenoborder"><table cellpadding="4" cellspacing="0" summary="" id="EN-US_TOPIC_0000001965416769__table189220313541" frame="border" border="1" rules="all"><caption><b>Table 3 </b>Network settings for the OpenSearch cluster</caption><thead align="left"><tr id="EN-US_TOPIC_0000001965416769__row17893193112548"><th align="left" class="cellrowborder" valign="top" width="30%" id="mcps1.3.4.2.5.2.2.3.1.1"><p id="EN-US_TOPIC_0000001965416769__p11893113112546">Parameter</p>
</th>
<th align="left" class="cellrowborder" valign="top" width="70%" id="mcps1.3.4.2.5.2.2.3.1.2"><p id="EN-US_TOPIC_0000001965416769__p1789312315547">Description</p>
</th>
</tr>
</thead>
<tbody><tr id="EN-US_TOPIC_0000001965416769__row389373116546"><td class="cellrowborder" valign="top" width="30%" headers="mcps1.3.4.2.5.2.2.3.1.1 "><p id="EN-US_TOPIC_0000001965416769__p9913181435518">VPC</p>
</td>
<td class="cellrowborder" valign="top" width="70%" headers="mcps1.3.4.2.5.2.2.3.1.2 "><p id="EN-US_TOPIC_0000001965416769__en-us_topic_0000001938218212_p139131614135515">Specify a VPC to isolate the cluster's network.</p>
<p id="EN-US_TOPIC_0000001965416769__en-us_topic_0000001938218212_p5756051124">Click <strong id="EN-US_TOPIC_0000001965416769__en-us_topic_0000001938218212_b563514384358">View VPC</strong> to go to the VPC management console and check the created VPCs. </p>
<p id="EN-US_TOPIC_0000001965416769__en-us_topic_0000001938218212_p78553541524">If no VPC is available, contact the CSS administrator to create a new VPC. For details, see section "Creating a VPC with a Subnet" in <em id="EN-US_TOPIC_0000001965416769__en-us_topic_0000001938218212_i1974728123613">VPC User Guide</em>.</p>
<div class="note" id="EN-US_TOPIC_0000001965416769__en-us_topic_0000001938218212_note1691310148559"><span class="notetitle"> NOTE: </span><div class="notebody"><p id="EN-US_TOPIC_0000001965416769__en-us_topic_0000001938218212_p191316148559">The VPC must contain CIDRs. Otherwise, cluster creation will fail. By default, a created VPC contains CIDRs.</p>
</div></div>
</td>
</tr>
<tr id="EN-US_TOPIC_0000001965416769__row168934317541"><td class="cellrowborder" valign="top" width="30%" headers="mcps1.3.4.2.5.2.2.3.1.1 "><p id="EN-US_TOPIC_0000001965416769__p5913151410551">Subnet</p>
</td>
<td class="cellrowborder" valign="top" width="70%" headers="mcps1.3.4.2.5.2.2.3.1.2 "><p id="EN-US_TOPIC_0000001965416769__p691311148557">A subnet provides dedicated network resources that are isolated from other networks, improving network security.</p>
<p id="EN-US_TOPIC_0000001965416769__p17913131435520">Select a subnet needed by the cluster in the current VPC. </p>
<p id="EN-US_TOPIC_0000001965416769__p48823932814">If no existing subnets meet your requirements, click <strong id="EN-US_TOPIC_0000001965416769__b1053102917445">Create Subnet</strong> to create a new subnet. For details, see section "Creating a VPC with a Subnet" in <em id="EN-US_TOPIC_0000001965416769__i16914313446">Virtual Private Cloud User Guide</em>.</p>
</td>
</tr>
<tr id="EN-US_TOPIC_0000001965416769__row158938310548"><td class="cellrowborder" valign="top" width="30%" headers="mcps1.3.4.2.5.2.2.3.1.1 "><p id="EN-US_TOPIC_0000001965416769__p79131014135511">Security Group</p>
</td>
<td class="cellrowborder" valign="top" width="70%" headers="mcps1.3.4.2.5.2.2.3.1.2 "><p id="EN-US_TOPIC_0000001965416769__p1401010894">A security group serves as a virtual firewall that provides access control policies for clusters.</p>
<p id="EN-US_TOPIC_0000001965416769__p10913101455520">Select a security group for the cluster. Click <strong id="EN-US_TOPIC_0000001965416769__b1098163123114116">View Security Group</strong> to go to the security group list, where you can view details about security groups.</p>
<div class="note" id="EN-US_TOPIC_0000001965416769__en-us_topic_0000001268154521_note1744217181810"><span class="notetitle"> NOTE: </span><div class="notebody"><p id="EN-US_TOPIC_0000001965416769__en-us_topic_0000001268154521_p14442870184">Ensure that <span class="parmname" id="EN-US_TOPIC_0000001965416769__parmname186911621115916"><b>Port/Range</b></span> is set to a port range that includes port <strong id="EN-US_TOPIC_0000001965416769__b0691221165918">9200</strong> for the selected security group.</p>
</div></div>
</td>
</tr>
<tr id="EN-US_TOPIC_0000001965416769__row1389363145410"><td class="cellrowborder" valign="top" width="30%" headers="mcps1.3.4.2.5.2.2.3.1.1 "><p id="EN-US_TOPIC_0000001965416769__p09147141552">Security Mode</p>
</td>
<td class="cellrowborder" valign="top" width="70%" headers="mcps1.3.4.2.5.2.2.3.1.2 "><p id="EN-US_TOPIC_0000001965416769__p1669112541219">Whether to enable the security mode for the cluster.</p>
<ul id="EN-US_TOPIC_0000001965416769__ul4914201415558"><li id="EN-US_TOPIC_0000001965416769__li57101355151314">The security mode is enabled by default. In security mode, a cluster's communication is encrypted and access to the cluster requires user authentication. This is why <strong id="EN-US_TOPIC_0000001965416769__b53886161514">Administrator Username</strong> and <strong id="EN-US_TOPIC_0000001965416769__b4388171618111">Administrator Password</strong> must be configured for the cluster.<ul id="EN-US_TOPIC_0000001965416769__ul192565111162"><li id="EN-US_TOPIC_0000001965416769__li139140147553">The default administrator username is <strong id="EN-US_TOPIC_0000001965416769__b2914151475511">admin</strong>.</li><li id="EN-US_TOPIC_0000001965416769__li1091411495519">Set and confirm the <strong id="EN-US_TOPIC_0000001965416769__b16245639183314">Administrator Password</strong>. This password will be required when you access this cluster.</li></ul>
</li><li id="EN-US_TOPIC_0000001965416769__li12710165591311">If <strong id="EN-US_TOPIC_0000001965416769__b945427013114116">Security Mode</strong> is disabled, a cluster in non-security mode will be created. With such a cluster, access to the cluster will require no user authentication, and data will be transmitted in plaintext using HTTP. Make sure the cluster is deployed in a secure environment. Do not expose the cluster's network interface to the public network.</li></ul>
</td>
</tr>
<tr id="EN-US_TOPIC_0000001965416769__row289333115542"><td class="cellrowborder" valign="top" width="30%" headers="mcps1.3.4.2.5.2.2.3.1.1 "><p id="EN-US_TOPIC_0000001965416769__p69141314195510">HTTPS Access</p>
</td>
<td class="cellrowborder" valign="top" width="70%" headers="mcps1.3.4.2.5.2.2.3.1.2 "><p id="EN-US_TOPIC_0000001965416769__p119154142558">HTTPS access can be enabled only when security mode is enabled for the cluster. With HTTPS access enabled, communication will be encrypted when you access the cluster.</p>
<p id="EN-US_TOPIC_0000001965416769__p285945785610">If the OpenSearch cluster version is 2.x or later, HTTPS is enabled by default and cannot be disabled when the security mode is enabled.</p>
<div class="note" id="EN-US_TOPIC_0000001965416769__note16915181418559"><span class="notetitle"> NOTE: </span><div class="notebody"><p id="EN-US_TOPIC_0000001965416769__p3915111405514">Compared with a non-security mode cluster that uses HTTP, a security-mode cluster that uses HTTPS has lower read performance. The performance loss is estimated at around 20% under high concurrency. If you want fast read performance as well as the isolation and permission control (such as indexes, documents, and fields) enabled by the security mode, you can disable <strong id="EN-US_TOPIC_0000001965416769__b8964104415377">HTTPS Access</strong>. After <strong id="EN-US_TOPIC_0000001965416769__b66692049103416">HTTPS Access</strong> is disabled, HTTP protocol is used for cluster communication. In this case, data security cannot be ensured and public IP address cannot be used.</p>
</div></div>
</td>
</tr>
<tr id="EN-US_TOPIC_0000001965416769__row58938312546"><td class="cellrowborder" valign="top" width="30%" headers="mcps1.3.4.2.5.2.2.3.1.1 "><p id="EN-US_TOPIC_0000001965416769__p691511420555">Public IP Address</p>
</td>
<td class="cellrowborder" valign="top" width="70%" headers="mcps1.3.4.2.5.2.2.3.1.2 "><p id="EN-US_TOPIC_0000001965416769__p12915914145514">This parameter is available only when <strong id="EN-US_TOPIC_0000001965416769__b2098213686114116">Security Mode</strong> and <strong id="EN-US_TOPIC_0000001965416769__b872655100114116">HTTPS Access</strong> are enabled. When <strong id="EN-US_TOPIC_0000001965416769__b1293049472114116">Public IP Address</strong> is enabled, a public IP address is automatically assigned, which will enable access to the security cluster from the Internet. For details, see <a href="css_01_0290.html">Configuring Public Network Access for an OpenSearch Cluster</a>.</p>
</td>
</tr>
</tbody>
</table>
</div>
<div class="fignone" id="EN-US_TOPIC_0000001965416769__fig15306034172215"><span class="figcap"><b>Figure 2 </b>Configuring the cluster network</span><br><span><img id="EN-US_TOPIC_0000001965416769__image1306183415223" src="figure/en-us_image_0000001963284664.png"></span></div>
</li><li id="EN-US_TOPIC_0000001965416769__li537144665017">Click <strong id="EN-US_TOPIC_0000001965416769__b1360889968114116">Next: Advanced Settings</strong>.</li><li id="EN-US_TOPIC_0000001965416769__en-us_topic_0000001268594549_li692975642819">On the <strong id="EN-US_TOPIC_0000001965416769__b73575815387">Advanced Settings</strong> page, configure a snapshot policy and other advanced settings for the OpenSearch cluster.<ol type="a" id="EN-US_TOPIC_0000001965416769__en-us_topic_0000001268594549_ol119772762919"><li id="EN-US_TOPIC_0000001965416769__en-us_topic_0000001938218212_en-us_topic_0000001268594549_li2976141415217">Set a cluster snapshot policy.<p id="EN-US_TOPIC_0000001965416769__en-us_topic_0000001938218212_en-us_topic_0000001268594549_p7466151817232"><a name="EN-US_TOPIC_0000001965416769__en-us_topic_0000001938218212_en-us_topic_0000001268594549_li2976141415217"></a><a name="en-us_topic_0000001938218212_en-us_topic_0000001268594549_li2976141415217"></a>Cluster snapshots are disabled by default. To enable them, toggle on <span class="parmname" id="EN-US_TOPIC_0000001965416769__parmname2026795561711"><b>Cluster Snapshots</b></span>. To store snapshots automatically created in OBS, an agency will need to be created in order to access OBS. Fees will be incurred for using standard OBS storage.</p>
<div class="tablenoborder"><table cellpadding="4" cellspacing="0" summary="" id="EN-US_TOPIC_0000001965416769__en-us_topic_0000001938218212_en-us_topic_0000001268594549_table114660304344" frame="border" border="1" rules="all"><caption><b>Table 4 </b>Basic configuration for a cluster snapshot policy</caption><thead align="left"><tr id="EN-US_TOPIC_0000001965416769__en-us_topic_0000001938218212_en-us_topic_0000001268594549_row74671830133417"><th align="left" class="cellrowborder" valign="top" width="16.900000000000002%" id="mcps1.3.4.2.7.2.1.2.2.3.1.1"><p id="EN-US_TOPIC_0000001965416769__en-us_topic_0000001938218212_en-us_topic_0000001268594549_p2467330133420">Parameter</p>
</th>
<th align="left" class="cellrowborder" valign="top" width="83.1%" id="mcps1.3.4.2.7.2.1.2.2.3.1.2"><p id="EN-US_TOPIC_0000001965416769__p911064716555">Description</p>
</th>
</tr>
</thead>
<tbody><tr id="EN-US_TOPIC_0000001965416769__en-us_topic_0000001938218212_en-us_topic_0000001268594549_row1646743016348"><td class="cellrowborder" valign="top" width="16.900000000000002%" headers="mcps1.3.4.2.7.2.1.2.2.3.1.1 "><p id="EN-US_TOPIC_0000001965416769__en-us_topic_0000001938218212_en-us_topic_0000001268594549_p5467163016341">OBS Bucket</p>
</td>
<td class="cellrowborder" valign="top" width="83.1%" headers="mcps1.3.4.2.7.2.1.2.2.3.1.2 "><p id="EN-US_TOPIC_0000001965416769__en-us_topic_0000001938218212_en-us_topic_0000001268594549_p2046713013344">From the drop-down list, select an OBS bucket for storing snapshots. You can also click <strong id="EN-US_TOPIC_0000001965416769__b17693432185318">Create Bucket</strong> on the right to create a new OBS bucket. For details, see <a href="https://docs.otc.t-systems.com/en-us/usermanual/obs/en-us_topic_0045853662.html" target="_blank" rel="noopener noreferrer">Creating a Bucket</a>.</p>
<p id="EN-US_TOPIC_0000001965416769__en-us_topic_0000001938218212_en-us_topic_0000001268594549_p169581927104917">The newly created or existing OBS bucket must meet the following requirements:</p>
<ul id="EN-US_TOPIC_0000001965416769__en-us_topic_0000001938218212_en-us_topic_0000001268594549_ul196015276499"><li id="EN-US_TOPIC_0000001965416769__en-us_topic_0000001938218212_en-us_topic_0000001268594549_li1496042724916"><span class="parmname" id="EN-US_TOPIC_0000001965416769__parmname49091492011174"><b>Storage Class</b></span>: <span class="parmvalue" id="EN-US_TOPIC_0000001965416769__parmvalue92628347311174"><b>Standard</b></span> or <strong id="EN-US_TOPIC_0000001965416769__b121381444711174">Warm</strong>.</li><li id="EN-US_TOPIC_0000001965416769__en-us_topic_0000001938218212_en-us_topic_0000001268594549_li8114122084513"><strong id="EN-US_TOPIC_0000001965416769__b9271084011174">Region</strong> must be the same as that of the created cluster.</li></ul>
</td>
</tr>
<tr id="EN-US_TOPIC_0000001965416769__en-us_topic_0000001938218212_en-us_topic_0000001268594549_row10467830183414"><td class="cellrowborder" valign="top" width="16.900000000000002%" headers="mcps1.3.4.2.7.2.1.2.2.3.1.1 "><p id="EN-US_TOPIC_0000001965416769__en-us_topic_0000001938218212_en-us_topic_0000001268594549_p146718309347">Backup Path</p>
</td>
<td class="cellrowborder" valign="top" width="83.1%" headers="mcps1.3.4.2.7.2.1.2.2.3.1.2 "><p id="EN-US_TOPIC_0000001965416769__p1211874775517">Storage path of the snapshot in the OBS bucket.</p>
<div class="p" id="EN-US_TOPIC_0000001965416769__p911894713558">The backup path cannot:<ul id="EN-US_TOPIC_0000001965416769__ul161181347105515"><li id="EN-US_TOPIC_0000001965416769__li16118154715510">Contain the following characters: \:*?"&lt;&gt;|'{}</li><li id="EN-US_TOPIC_0000001965416769__li111820473558">Start with a slash (/).</li><li id="EN-US_TOPIC_0000001965416769__li1311834775515">Start or end with a period (.).</li><li id="EN-US_TOPIC_0000001965416769__li1111817473554">Contain more than two consecutive slashes (/) or periods (.).</li><li id="EN-US_TOPIC_0000001965416769__li1911819472555">Exceed 512 characters.</li></ul>
</div>
<div class="caution" id="EN-US_TOPIC_0000001965416769__note11241123820"><span class="cautiontitle"> CAUTION: </span><div class="cautionbody"><p id="EN-US_TOPIC_0000001965416769__p5116417382">Only standard OBS storage can be used to store snapshots. Do not apply OBS lifecycle rules to the backup path.</p>
</div></div>
</td>
</tr>
<tr id="EN-US_TOPIC_0000001965416769__en-us_topic_0000001938218212_row1757185220138"><td class="cellrowborder" valign="top" width="16.900000000000002%" headers="mcps1.3.4.2.7.2.1.2.2.3.1.1 "><p id="EN-US_TOPIC_0000001965416769__en-us_topic_0000001938218212_p957252201315">Maximum Backup Rate (per Second)</p>
</td>
<td class="cellrowborder" valign="top" width="83.1%" headers="mcps1.3.4.2.7.2.1.2.2.3.1.2 "><p id="EN-US_TOPIC_0000001965416769__en-us_topic_0000002271391397_p156119814251">The parameter sets the maximum backup rate per node. When it is exceeded, flow control is triggered to prevent excessive resource usage and ensure system stability. The actual backup rate may not reach the configured value, as it depends on factors such as OBS performance and disk I/O.</p>
<div class="p" id="EN-US_TOPIC_0000001965416769__en-us_topic_0000002271391397_p261317818257"><strong id="EN-US_TOPIC_0000001965416769__en-us_topic_0000002271391397_b66136812256">Value format</strong>: number + unit<ul id="EN-US_TOPIC_0000001965416769__en-us_topic_0000002271391397_ul361348122514"><li id="EN-US_TOPIC_0000001965416769__en-us_topic_0000002271391397_li14613789251">Number range: 0–9999</li><li id="EN-US_TOPIC_0000001965416769__en-us_topic_0000002271391397_li56134812252">Unit: KB, MB, GB, TB, PB, or B</li></ul>
</div>
<p id="EN-US_TOPIC_0000001965416769__en-us_topic_0000002271391397_p1862298152513"><strong id="EN-US_TOPIC_0000001965416769__en-us_topic_0000002271391397_b1100394757113518">Default value</strong>: 40 MB</p>
<p id="EN-US_TOPIC_0000001965416769__en-us_topic_0000002271391397_p96231481256">The value 0MB means there is no limit on how fast data is backed up to snapshots. An overly high backup rate may lead to excessive resource usage, which may impact cluster stability. Configure this parameter carefully to maintain optimal performance.</p>
</td>
</tr>
<tr id="EN-US_TOPIC_0000001965416769__en-us_topic_0000001938218212_row1827625651313"><td class="cellrowborder" valign="top" width="16.900000000000002%" headers="mcps1.3.4.2.7.2.1.2.2.3.1.1 "><p id="EN-US_TOPIC_0000001965416769__en-us_topic_0000001938218212_p19276056111317">Maximum Recovery Rate (per Second)</p>
</td>
<td class="cellrowborder" valign="top" width="83.1%" headers="mcps1.3.4.2.7.2.1.2.2.3.1.2 "><p id="EN-US_TOPIC_0000001965416769__en-us_topic_0000002271391397_p11248412132012">The parameter sets the maximum recovery rate per node. When it is exceeded, flow control is triggered to prevent excessive resource usage and ensure system stability. The actual recovery rate may not reach the configured value, as it depends on factors such as OBS performance and disk I/O.</p>
<div class="p" id="EN-US_TOPIC_0000001965416769__en-us_topic_0000002271391397_p202481126205"><strong id="EN-US_TOPIC_0000001965416769__en-us_topic_0000002271391397_b10652145318285">Value format</strong>: number + unit<ul id="EN-US_TOPIC_0000001965416769__en-us_topic_0000002271391397_ul17248121262019"><li id="EN-US_TOPIC_0000001965416769__en-us_topic_0000002271391397_li1524841282010">Number range: 0–9999</li><li id="EN-US_TOPIC_0000001965416769__en-us_topic_0000002271391397_li1724818127204">Unit: KB, MB, GB, TB, PB, or B</li></ul>
</div>
<p id="EN-US_TOPIC_0000001965416769__en-us_topic_0000002271391397_p5248151218202">The default value is 0MB, indicating no limit.</p>
<p id="EN-US_TOPIC_0000001965416769__en-us_topic_0000002271391397_p12248161212010">An overly high recovery rate may lead to excessive resource usage, which may impact cluster stability. Configure this parameter carefully to maintain optimal performance.</p>
<div class="p" id="EN-US_TOPIC_0000001965416769__en-us_topic_0000002271391397_p3248141242016">For OpenSearch clusters, the recovery rate is also limited by the <span class="parmname" id="EN-US_TOPIC_0000001965416769__en-us_topic_0000002271391397_parmname15800238163313"><b>indices.recovery.max_bytes_per_sec</b></span> parameter.<ul id="EN-US_TOPIC_0000001965416769__en-us_topic_0000002271391397_ul82488126205"><li id="EN-US_TOPIC_0000001965416769__en-us_topic_0000002271391397_li624831213208">If <strong id="EN-US_TOPIC_0000001965416769__en-us_topic_0000002271391397_b28318617063031">Maximum Recovery Rate (per Second)</strong> is less than <span class="parmname" id="EN-US_TOPIC_0000001965416769__en-us_topic_0000002271391397_parmname101849150363031"><b>indices.recovery.max_bytes_per_sec</b></span>, the former takes effect.</li><li id="EN-US_TOPIC_0000001965416769__en-us_topic_0000002271391397_li17249151212200">If <strong id="EN-US_TOPIC_0000001965416769__en-us_topic_0000002271391397_b136340841163031">Maximum Recovery Rate (per Second)</strong> is greater than <span class="parmname" id="EN-US_TOPIC_0000001965416769__en-us_topic_0000002271391397_parmname96203181063031"><b>indices.recovery.max_bytes_per_sec</b></span>, the latter takes effect.</li></ul>
</div>
<div class="note" id="EN-US_TOPIC_0000001965416769__en-us_topic_0000002271391397_note724916128204"><span class="notetitle"> NOTE: </span><div class="notebody"><ul id="EN-US_TOPIC_0000001965416769__en-us_topic_0000002271391397_en-us_topic_0000002259367421_ul584722891418"><li id="EN-US_TOPIC_0000001965416769__en-us_topic_0000002271391397_en-us_topic_0000002259367421_li34132419147">To check the value of <span class="parmname" id="EN-US_TOPIC_0000001965416769__en-us_topic_0000002271391397_en-us_topic_0000002259367421_parmname335155191417"><b>indices.recovery.max_bytes_per_sec</b></span>, run the following command:<pre class="screen" id="EN-US_TOPIC_0000001965416769__en-us_topic_0000002271391397_en-us_topic_0000002259367421_screen52229245157">GET _cluster/settings</pre>
</li><li id="EN-US_TOPIC_0000001965416769__en-us_topic_0000002271391397_en-us_topic_0000002259367421_li484712811413">To modify <span class="parmname" id="EN-US_TOPIC_0000001965416769__en-us_topic_0000002271391397_en-us_topic_0000002259367421_parmname111853470113"><b>indices.recovery.max_bytes_per_sec</b></span>, run the following command:<pre class="screen" id="EN-US_TOPIC_0000001965416769__en-us_topic_0000002271391397_en-us_topic_0000002259367421_screen33041356101115">PUT _cluster/settings
{
"transient": {
"indices.recovery.max_bytes_per_sec": "100mb"
}
}</pre>
</li></ul>
</div></div>
</td>
</tr>
<tr id="EN-US_TOPIC_0000001965416769__en-us_topic_0000001938218212_en-us_topic_0000001268594549_row94671530153410"><td class="cellrowborder" valign="top" width="16.900000000000002%" headers="mcps1.3.4.2.7.2.1.2.2.3.1.1 "><p id="EN-US_TOPIC_0000001965416769__en-us_topic_0000001938218212_en-us_topic_0000001268594549_p13467330103415">IAM Agency</p>
</td>
<td class="cellrowborder" valign="top" width="83.1%" headers="mcps1.3.4.2.7.2.1.2.2.3.1.2 "><p id="EN-US_TOPIC_0000001965416769__en-us_topic_0000001938218212_en-us_topic_0000001268594549_p194671630143411">IAM agency authorized by the current account for <span id="EN-US_TOPIC_0000001965416769__text17476175013543">CSS</span> to access or maintain data stored in OBS. If no agency is available, contact the CSS administrator to create one. For details, see <a href="https://docs.otc.t-systems.com/en-us/usermanual/iam/en-us_topic_0046613147.html" target="_blank" rel="noopener noreferrer">Creating an Agency</a>.</p>
<div class="p" id="EN-US_TOPIC_0000001965416769__en-us_topic_0000001938218212_en-us_topic_0000001268594549_p15960122764916">The selected IAM agency must meet the following requirements:<ul id="EN-US_TOPIC_0000001965416769__en-us_topic_0000001938218212_en-us_topic_0000001268594549_ul29611827194917"><li id="EN-US_TOPIC_0000001965416769__en-us_topic_0000001938218212_en-us_topic_0000001268594549_li1896011275492"><span class="parmname" id="EN-US_TOPIC_0000001965416769__en-us_topic_0000001938218212_en-us_topic_0000001268594549_parmname1296072754913"><b>Agency Type</b></span> must be <span class="parmvalue" id="EN-US_TOPIC_0000001965416769__en-us_topic_0000001938218212_en-us_topic_0000001268594549_parmvalue1096092710492"><b>Cloud service</b></span>.</li><li id="EN-US_TOPIC_0000001965416769__en-us_topic_0000001938218212_en-us_topic_0000001268594549_li696032784920">Set <strong id="EN-US_TOPIC_0000001965416769__b16421277558">Cloud Service</strong> to <strong id="EN-US_TOPIC_0000001965416769__b1842111715553">CSS</strong>.</li><li id="EN-US_TOPIC_0000001965416769__en-us_topic_0000001938218212_li8420124922810">Mandatory policies: <span class="parmname" id="EN-US_TOPIC_0000001965416769__parmname178085424311174"><b>Tenant Administrator</b></span> or <span class="parmname" id="EN-US_TOPIC_0000001965416769__parmname106127170811174"><b>OBS Administrator</b></span>.</li></ul>
</div>
<div class="warning" id="EN-US_TOPIC_0000001965416769__note1444115592518"><span class="warningtitle"> WARNING: </span><div class="warningbody"><p id="EN-US_TOPIC_0000001965416769__en-us_topic_0000001938218212_p671411121377">The agency name can contain only letters (case-sensitive), digits, underscores (_), and hyphens (-). Otherwise, the backup will fail.</p>
</div></div>
</td>
</tr>
</tbody>
</table>
</div>
<div class="tablenoborder"><table cellpadding="4" cellspacing="0" summary="" id="EN-US_TOPIC_0000001965416769__en-us_topic_0000001938218212_en-us_topic_0000001268594549_table179407117910" frame="border" border="1" rules="all"><caption><b>Table 5 </b>Setting automatic snapshot creation</caption><thead align="left"><tr id="EN-US_TOPIC_0000001965416769__en-us_topic_0000001938218212_en-us_topic_0000001268594549_row1694013111396"><th align="left" class="cellrowborder" valign="top" width="16.900000000000002%" id="mcps1.3.4.2.7.2.1.3.2.3.1.1"><p id="EN-US_TOPIC_0000001965416769__en-us_topic_0000001938218212_en-us_topic_0000001268594549_p994001118917">Parameter</p>
</th>
<th align="left" class="cellrowborder" valign="top" width="83.1%" id="mcps1.3.4.2.7.2.1.3.2.3.1.2"><p id="EN-US_TOPIC_0000001965416769__en-us_topic_0000001938218212_en-us_topic_0000001268594549_p159404111593">Description</p>
</th>
</tr>
</thead>
<tbody><tr id="EN-US_TOPIC_0000001965416769__en-us_topic_0000001938218212_en-us_topic_0000001268594549_row494351116910"><td class="cellrowborder" valign="top" width="16.900000000000002%" headers="mcps1.3.4.2.7.2.1.3.2.3.1.1 "><p id="EN-US_TOPIC_0000001965416769__en-us_topic_0000001938218212_en-us_topic_0000001268594549_p189432011894">Snapshot Name Prefix</p>
</td>
<td class="cellrowborder" valign="top" width="83.1%" headers="mcps1.3.4.2.7.2.1.3.2.3.1.2 "><p id="EN-US_TOPIC_0000001965416769__en-us_topic_0000001938218212_en-us_topic_0000001268594549_p1194311117917">The snapshot name prefix contains 1 to 32 characters and must start with a lowercase letter. Only lowercase letters, digits, hyphens (-), and underscores (_) are allowed. A snapshot name consists of a snapshot name prefix and a timestamp, for example, <strong id="EN-US_TOPIC_0000001965416769__b19934074811174">snapshot-1566921603720</strong>.</p>
</td>
</tr>
<tr id="EN-US_TOPIC_0000001965416769__en-us_topic_0000001938218212_en-us_topic_0000001268594549_row69433112092"><td class="cellrowborder" valign="top" width="16.900000000000002%" headers="mcps1.3.4.2.7.2.1.3.2.3.1.1 "><p id="EN-US_TOPIC_0000001965416769__en-us_topic_0000001938218212_en-us_topic_0000001268594549_p6943181111912">Time Zone</p>
</td>
<td class="cellrowborder" valign="top" width="83.1%" headers="mcps1.3.4.2.7.2.1.3.2.3.1.2 "><p id="EN-US_TOPIC_0000001965416769__en-us_topic_0000001938218212_en-us_topic_0000001268594549_p129431110916">Time zone for the backup time. Specify <span class="parmname" id="EN-US_TOPIC_0000001965416769__parmname170778734411174"><b>Backup Started Time</b></span> based on the time zone.</p>
</td>
</tr>
<tr id="EN-US_TOPIC_0000001965416769__en-us_topic_0000001938218212_en-us_topic_0000001268594549_row79432111592"><td class="cellrowborder" valign="top" width="16.900000000000002%" headers="mcps1.3.4.2.7.2.1.3.2.3.1.1 "><p id="EN-US_TOPIC_0000001965416769__en-us_topic_0000001938218212_en-us_topic_0000001268594549_p9943141118920">Backup Start Time</p>
</td>
<td class="cellrowborder" valign="top" width="83.1%" headers="mcps1.3.4.2.7.2.1.3.2.3.1.2 "><p id="EN-US_TOPIC_0000001965416769__p1292595161010">Specify the start time of auto backup.</p>
<p id="EN-US_TOPIC_0000001965416769__p1925251131015">Select a time from the drop-down list. The interval can be <strong id="EN-US_TOPIC_0000001965416769__b179301940105916">Daily</strong>, <strong id="EN-US_TOPIC_0000001965416769__b69309409590">Hourly</strong>, or weekly (by selecting a specific day of the week), and the backup time can be set to any hour from 00:00 to 23:00 (full hours only).</p>
</td>
</tr>
<tr id="EN-US_TOPIC_0000001965416769__en-us_topic_0000001938218212_en-us_topic_0000001268594549_row1594310119917"><td class="cellrowborder" valign="top" width="16.900000000000002%" headers="mcps1.3.4.2.7.2.1.3.2.3.1.1 "><p id="EN-US_TOPIC_0000001965416769__en-us_topic_0000001938218212_en-us_topic_0000001268594549_p20943161110914">Retention Period (days)</p>
</td>
<td class="cellrowborder" valign="top" width="83.1%" headers="mcps1.3.4.2.7.2.1.3.2.3.1.2 "><p id="EN-US_TOPIC_0000001965416769__en-us_topic_0000001938218212_en-us_topic_0000001268594549_p1094317111692">The number of days that snapshots are retained in the OBS bucket. The value ranges from 1 to 90, and the default value is 7. Specify this parameter as required. The system automatically deletes expired snapshots every half hour.</p>
</td>
</tr>
</tbody>
</table>
</div>
</li><li id="EN-US_TOPIC_0000001965416769__en-us_topic_0000001938218212_en-us_topic_0000001268594549_li43860154919">Configure advanced settings for the cluster. Select <strong id="EN-US_TOPIC_0000001965416769__b52140660011174">Default</strong> or <strong id="EN-US_TOPIC_0000001965416769__b37118492611174">Custom</strong>.<ul id="EN-US_TOPIC_0000001965416769__en-us_topic_0000001938218212_en-us_topic_0000001268594549_ul48111546185419"><li id="EN-US_TOPIC_0000001965416769__en-us_topic_0000001938218212_li1628520435265"><span class="parmname" id="EN-US_TOPIC_0000001965416769__parmname206019191411174"><b>Default</b></span>: <span class="parmname" id="EN-US_TOPIC_0000001965416769__parmname185608708611174"><b>VPC Endpoint</b></span>, <span class="parmname" id="EN-US_TOPIC_0000001965416769__parmname176509669211174"><b>OpenSearch Dashboards Public Network Access</b></span> are disabled by default. You can manually enable these settings after the cluster is created.</li><li id="EN-US_TOPIC_0000001965416769__en-us_topic_0000001938218212_li102851843162618"><span class="parmname" id="EN-US_TOPIC_0000001965416769__parmname144707054311174"><b>Custom</b></span>: You can enable <span class="parmname" id="EN-US_TOPIC_0000001965416769__parmname209659604911174"><b>VPC Endpoint</b></span>, <span class="parmname" id="EN-US_TOPIC_0000001965416769__parmname169611677911174"><b>OpenSearch Dashboards Public Network Access</b></span> as required.</li></ul>
<p id="EN-US_TOPIC_0000001965416769__en-us_topic_0000001938218212_p7991357162619"><strong id="EN-US_TOPIC_0000001965416769__en-us_topic_0000001938218212_b792174092712">VPC Endpoint</strong></p>
<div class="p" id="EN-US_TOPIC_0000001965416769__en-us_topic_0000001938218212_p139005515277"><span id="EN-US_TOPIC_0000001965416769__ph19956234125018">VPC Endpoint enables you to access resources across Virtual Private Clouds (VPCs) using a dedicated gateway, without exposing the network information of servers. When VPC Endpoint is enabled, a VPC endpoint will be created by default. You can select <strong id="EN-US_TOPIC_0000001965416769__b18956143445014">Create Private Domain Name</strong> if necessary. Users will be able to access this cluster across VPCs through node IP addresses or a private domain name.</span>
<div class="tablenoborder"><table cellpadding="4" cellspacing="0" summary="" id="EN-US_TOPIC_0000001965416769__en-us_topic_0000001938218212_table1942185513339" frame="border" border="1" rules="all"><caption><b>Table 6 </b>Configuring VPC Endpoint</caption><thead align="left"><tr id="EN-US_TOPIC_0000001965416769__en-us_topic_0000001938218212_row1342116555339"><th align="left" class="cellrowborder" valign="top" width="30%" id="mcps1.3.4.2.7.2.2.5.2.2.3.1.1"><p id="EN-US_TOPIC_0000001965416769__en-us_topic_0000001938218212_p12421145523314">Parameter</p>
</th>
<th align="left" class="cellrowborder" valign="top" width="70%" id="mcps1.3.4.2.7.2.2.5.2.2.3.1.2"><p id="EN-US_TOPIC_0000001965416769__en-us_topic_0000001938218212_p842145513334">Description</p>
</th>
</tr>
</thead>
<tbody><tr id="EN-US_TOPIC_0000001965416769__en-us_topic_0000001938218212_row24211655193318"><td class="cellrowborder" valign="top" width="30%" headers="mcps1.3.4.2.7.2.2.5.2.2.3.1.1 "><p id="EN-US_TOPIC_0000001965416769__en-us_topic_0000001938218212_p184211955173314">Create Private Domain Name</p>
</td>
<td class="cellrowborder" valign="top" width="70%" headers="mcps1.3.4.2.7.2.2.5.2.2.3.1.2 "><p id="EN-US_TOPIC_0000001965416769__en-us_topic_0000001938218212_p1642215515336">If <strong id="EN-US_TOPIC_0000001965416769__b163854489111174">Create Private Domain Name</strong> is selected, the system generates a node IP address and also automatically creates a private domain name, which enables users to access this cluster from within the same VPC. If it is not selected, only a node IP address is generated.</p>
</td>
</tr>
<tr id="EN-US_TOPIC_0000001965416769__en-us_topic_0000001938218212_row1642214556331"><td class="cellrowborder" valign="top" width="30%" headers="mcps1.3.4.2.7.2.2.5.2.2.3.1.1 "><p id="EN-US_TOPIC_0000001965416769__en-us_topic_0000001938218212_p2422105523317">VPC Endpoint Whitelist</p>
</td>
<td class="cellrowborder" valign="top" width="70%" headers="mcps1.3.4.2.7.2.2.5.2.2.3.1.2 "><p id="EN-US_TOPIC_0000001965416769__en-us_topic_0000001938218212_p207751233114313">In <strong id="EN-US_TOPIC_0000001965416769__b76171135193816">VPC Endpoint Whitelist</strong>, you can add accounts that are allowed to access the cluster using a node IP address or private domain name.</p>
<ul id="EN-US_TOPIC_0000001965416769__en-us_topic_0000001938218212_ul197511323113916"><li id="EN-US_TOPIC_0000001965416769__en-us_topic_0000001938218212_en-us_topic_0000001223434404_li3393155917228">Click <strong id="EN-US_TOPIC_0000001965416769__b209828067511174">Add</strong> to add accounts in <strong id="EN-US_TOPIC_0000001965416769__b195222104411174">Account ID</strong>. If no account is added or the account ID is set to <span class="parmvalue" id="EN-US_TOPIC_0000001965416769__parmvalue179597319511174"><b>*</b></span>, all users are allowed to access the cluster through the VPC endpoint service.</li><li id="EN-US_TOPIC_0000001965416769__en-us_topic_0000001938218212_en-us_topic_0000001223434404_li640115594223">Click <strong id="EN-US_TOPIC_0000001965416769__b74791259011174">Delete</strong> in the <strong id="EN-US_TOPIC_0000001965416769__b160465303711174">Operation</strong> column to delete accounts.</li></ul>
<div class="note" id="EN-US_TOPIC_0000001965416769__en-us_topic_0000001938218212_en-us_topic_0000001223434404_note47795914269"><span class="notetitle"> NOTE: </span><div class="notebody"><p id="EN-US_TOPIC_0000001965416769__en-us_topic_0000001938218212_p951214911592">To obtain your authorized account ID, point to your username in the upper right corner, and choose <strong id="EN-US_TOPIC_0000001965416769__b154865589911174">My Credentials</strong>. Copy the value of <strong id="EN-US_TOPIC_0000001965416769__b209468724911174">Account ID</strong>.</p>
</div></div>
</td>
</tr>
</tbody>
</table>
</div>
</div>
<p id="EN-US_TOPIC_0000001965416769__en-us_topic_0000001938218212_p1960114592719"><strong id="EN-US_TOPIC_0000001965416769__b10602934163914">OpenSearch Dashboards Public Network Access</strong></p>
<div class="p" id="EN-US_TOPIC_0000001965416769__en-us_topic_0000001938218212_p19429810192819">This parameter is available only when the security mode is enabled for the cluster. By enabling this option, you can obtain a public IP address for accessing OpenSearch Dashboards.
<div class="tablenoborder"><table cellpadding="4" cellspacing="0" summary="" id="EN-US_TOPIC_0000001965416769__en-us_topic_0000001938218212_en-us_topic_0000001268394285_table17115184318116" frame="border" border="1" rules="all"><caption><b>Table 7 </b>Configuring public network access for OpenSearch Dashboards</caption><thead align="left"><tr id="EN-US_TOPIC_0000001965416769__en-us_topic_0000001938218212_en-us_topic_0000001268394285_row13115543918"><th align="left" class="cellrowborder" valign="top" width="30%" id="mcps1.3.4.2.7.2.2.7.1.2.3.1.1"><p id="EN-US_TOPIC_0000001965416769__en-us_topic_0000001938218212_en-us_topic_0000001268394285_p6115643517">Parameter</p>
</th>
<th align="left" class="cellrowborder" valign="top" width="70%" id="mcps1.3.4.2.7.2.2.7.1.2.3.1.2"><p id="EN-US_TOPIC_0000001965416769__en-us_topic_0000001938218212_en-us_topic_0000001268394285_p1611564318117">Description</p>
</th>
</tr>
</thead>
<tbody><tr id="EN-US_TOPIC_0000001965416769__en-us_topic_0000001938218212_en-us_topic_0000001268394285_row15116743917"><td class="cellrowborder" valign="top" width="30%" headers="mcps1.3.4.2.7.2.2.7.1.2.3.1.1 "><p id="EN-US_TOPIC_0000001965416769__en-us_topic_0000001938218212_en-us_topic_0000001268394285_p10116443611">Bandwidth</p>
</td>
<td class="cellrowborder" valign="top" width="70%" headers="mcps1.3.4.2.7.2.2.7.1.2.3.1.2 "><p id="EN-US_TOPIC_0000001965416769__en-us_topic_0000001938218212_en-us_topic_0000001268394285_p1911615431411">Bandwidth for accessing Kibana through a public IP address.</p>
<p id="EN-US_TOPIC_0000001965416769__en-us_topic_0000001938218212_en-us_topic_0000001268394285_p458617258523">Value range: 1 to 100</p>
<p id="EN-US_TOPIC_0000001965416769__en-us_topic_0000001938218212_en-us_topic_0000001268394285_p209154432526">Unit: Mbit/s</p>
</td>
</tr>
<tr id="EN-US_TOPIC_0000001965416769__en-us_topic_0000001938218212_en-us_topic_0000001268394285_row1811610437113"><td class="cellrowborder" valign="top" width="30%" headers="mcps1.3.4.2.7.2.2.7.1.2.3.1.1 "><p id="EN-US_TOPIC_0000001965416769__en-us_topic_0000001938218212_en-us_topic_0000001268394285_p911634315111">Access Control</p>
</td>
<td class="cellrowborder" valign="top" width="70%" headers="mcps1.3.4.2.7.2.2.7.1.2.3.1.2 "><p id="EN-US_TOPIC_0000001965416769__en-us_topic_0000001938218212_en-us_topic_0000001268394285_p4116114313112">If you disable this function, all IP addresses can access OpenSearch Dashboards from the public network. If you enable this function, only IP addresses or IP address ranges that are on the whitelist can access OpenSearch Dashboards through from the public network.</p>
</td>
</tr>
<tr id="EN-US_TOPIC_0000001965416769__en-us_topic_0000001938218212_en-us_topic_0000001268394285_row191163438120"><td class="cellrowborder" valign="top" width="30%" headers="mcps1.3.4.2.7.2.2.7.1.2.3.1.1 "><p id="EN-US_TOPIC_0000001965416769__en-us_topic_0000001938218212_en-us_topic_0000001268394285_p911694312110">Whitelist</p>
</td>
<td class="cellrowborder" valign="top" width="70%" headers="mcps1.3.4.2.7.2.2.7.1.2.3.1.2 "><p id="EN-US_TOPIC_0000001965416769__en-us_topic_0000001938218212_en-us_topic_0000001268394285_p4116164313119">IP addresses or IP address ranges that are allowed to access the cluster from the public network. Use commas (,) to separate different values. This parameter can be configured only when <strong id="EN-US_TOPIC_0000001965416769__b16950500111174">Access Control</strong> is enabled.</p>
<p id="EN-US_TOPIC_0000001965416769__en-us_topic_0000001938218212_en-us_topic_0000001268394285_p4726101014818">You are advised to enable the whitelist.</p>
<div class="note" id="EN-US_TOPIC_0000001965416769__en-us_topic_0000001938218212_note367029122416"><span class="notetitle"> NOTE: </span><div class="notebody"><p id="EN-US_TOPIC_0000001965416769__en-us_topic_0000001938218212_p171085328241">The whitelist that controls OpenSearch Dashboards public network access depends on whitelist support by the ELB service. After you update the whitelist, the new settings take effect immediately for new connections. For existing persistent connections using the IP addresses that have been removed from the whitelist, the new settings take effect in approximately 1 minute after these connections are disconnected.</p>
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</li><li id="EN-US_TOPIC_0000001965416769__en-us_topic_0000001268594549_li95131110131015">Click <strong id="EN-US_TOPIC_0000001965416769__b1432315236114116">Next: Confirm Configuration</strong>. Check the configuration and click <strong id="EN-US_TOPIC_0000001965416769__b372599873114116">Next</strong> to create a cluster.</li><li id="EN-US_TOPIC_0000001965416769__en-us_topic_0000001268594549_li85241119112419">Return to the cluster list and check the newly created cluster. If the cluster is created successfully, <span class="parmname" id="EN-US_TOPIC_0000001965416769__parmname9121170191510"><b>Cluster Status</b></span> changes to <span class="parmname" id="EN-US_TOPIC_0000001965416769__parmname121211008154"><b><span id="EN-US_TOPIC_0000001965416769__text712100131511">Available</span></b></span>. Cluster creation time depends on the number of nodes. Typically, this process takes less than 60 minutes, though clusters with a large number of nodes may require additional time.<p id="EN-US_TOPIC_0000001965416769__en-us_topic_0000001268594549_p6524519192411">If cluster creation fails, try creating the cluster again by rectifying the errors returned.</p>
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<div class="parentlink"><strong>Parent topic:</strong> <a href="css_01_0273.html">Using OpenSearch for Data Search</a></div>
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