doc-exports/docs/dcs/api-ref/UpdateSlavePriority.html
Chen, Junjie a03981f7be DCS API 20230220 Version
Reviewed-by: Bobkova, Natalia <natalia.bobkova@t-systems.com>
Co-authored-by: Chen, Junjie <chenjunjie@huawei.com>
Co-committed-by: Chen, Junjie <chenjunjie@huawei.com>
2024-04-22 14:08:39 +00:00

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<a name="UpdateSlavePriority"></a><a name="UpdateSlavePriority"></a>
<h1 class="topictitle1">Configuring Replica Priority</h1>
<div><div class="section"><h4 class="sectiontitle">Function</h4><p>This API is used to configure the replica priority. When the master node is faulty, a replica with a smaller weight has a higher priority to be promoted to master.</p>
</div>
<div class="section" id="UpdateSlavePriority__atuogenerate_1"><h4 class="sectiontitle">URI</h4><p>POST /v2/{project_id}/instances/{instance_id}/groups/{group_id}/replications/{node_id}/slave-priority</p>
<div class="tablenoborder"><table cellpadding="4" cellspacing="0" summary="" frame="border" border="1" rules="all"><caption><b>Table 1 </b>Path Parameters</caption><thead align="left"><tr><th align="left" class="cellrowborder" valign="top" width="20%" id="mcps1.3.2.3.2.5.1.1"><p>Parameter</p>
</th>
<th align="left" class="cellrowborder" valign="top" width="20%" id="mcps1.3.2.3.2.5.1.2"><p>Mandatory</p>
</th>
<th align="left" class="cellrowborder" valign="top" width="20%" id="mcps1.3.2.3.2.5.1.3"><p>Type</p>
</th>
<th align="left" class="cellrowborder" valign="top" width="40%" id="mcps1.3.2.3.2.5.1.4"><p>Description</p>
</th>
</tr>
</thead>
<tbody><tr><td class="cellrowborder" valign="top" width="20%" headers="mcps1.3.2.3.2.5.1.1 "><p>project_id</p>
</td>
<td class="cellrowborder" valign="top" width="20%" headers="mcps1.3.2.3.2.5.1.2 "><p>Yes</p>
</td>
<td class="cellrowborder" valign="top" width="20%" headers="mcps1.3.2.3.2.5.1.3 "><p>String</p>
</td>
<td class="cellrowborder" valign="top" width="40%" headers="mcps1.3.2.3.2.5.1.4 "><p>Project ID. For details, see <a href="dcs-api-0312045.html">Obtaining a Project ID</a>.</p>
</td>
</tr>
<tr><td class="cellrowborder" valign="top" width="20%" headers="mcps1.3.2.3.2.5.1.1 "><p>instance_id</p>
</td>
<td class="cellrowborder" valign="top" width="20%" headers="mcps1.3.2.3.2.5.1.2 "><p>Yes</p>
</td>
<td class="cellrowborder" valign="top" width="20%" headers="mcps1.3.2.3.2.5.1.3 "><p>String</p>
</td>
<td class="cellrowborder" valign="top" width="40%" headers="mcps1.3.2.3.2.5.1.4 "><p>Instance ID.</p>
</td>
</tr>
<tr><td class="cellrowborder" valign="top" width="20%" headers="mcps1.3.2.3.2.5.1.1 "><p>group_id</p>
</td>
<td class="cellrowborder" valign="top" width="20%" headers="mcps1.3.2.3.2.5.1.2 "><p>Yes</p>
</td>
<td class="cellrowborder" valign="top" width="20%" headers="mcps1.3.2.3.2.5.1.3 "><p>String</p>
</td>
<td class="cellrowborder" valign="top" width="40%" headers="mcps1.3.2.3.2.5.1.4 "><p>Shard ID.</p>
</td>
</tr>
<tr><td class="cellrowborder" valign="top" width="20%" headers="mcps1.3.2.3.2.5.1.1 "><p>node_id</p>
</td>
<td class="cellrowborder" valign="top" width="20%" headers="mcps1.3.2.3.2.5.1.2 "><p>Yes</p>
</td>
<td class="cellrowborder" valign="top" width="20%" headers="mcps1.3.2.3.2.5.1.3 "><p>String</p>
</td>
<td class="cellrowborder" valign="top" width="40%" headers="mcps1.3.2.3.2.5.1.4 "><p>Node ID.</p>
</td>
</tr>
</tbody>
</table>
</div>
</div>
<div class="section"><h4 class="sectiontitle">Request Parameters</h4>
<div class="tablenoborder"><table cellpadding="4" cellspacing="0" summary="" id="UpdateSlavePriority__request_PriorityBody" frame="border" border="1" rules="all"><caption><b>Table 2 </b>Request body parameters</caption><thead align="left"><tr><th align="left" class="cellrowborder" valign="top" width="20%" id="mcps1.3.3.2.2.5.1.1"><p>Parameter</p>
</th>
<th align="left" class="cellrowborder" valign="top" width="20%" id="mcps1.3.3.2.2.5.1.2"><p>Mandatory</p>
</th>
<th align="left" class="cellrowborder" valign="top" width="20%" id="mcps1.3.3.2.2.5.1.3"><p>Type</p>
</th>
<th align="left" class="cellrowborder" valign="top" width="40%" id="mcps1.3.3.2.2.5.1.4"><p>Description</p>
</th>
</tr>
</thead>
<tbody><tr><td class="cellrowborder" valign="top" width="20%" headers="mcps1.3.3.2.2.5.1.1 "><p>slave_priority_weight</p>
</td>
<td class="cellrowborder" valign="top" width="20%" headers="mcps1.3.3.2.2.5.1.2 "><p>Yes</p>
</td>
<td class="cellrowborder" valign="top" width="20%" headers="mcps1.3.3.2.2.5.1.3 "><p>Integer</p>
</td>
<td class="cellrowborder" valign="top" width="40%" headers="mcps1.3.3.2.2.5.1.4 "><p>Replica priority. The value ranges from 0 to 100. Value <strong>0</strong> indicates that the promotion is disabled by default.</p>
</td>
</tr>
</tbody>
</table>
</div>
</div>
<div class="section"><h4 class="sectiontitle">Response Parameters</h4><p><strong>Status code: 400</strong></p>
<div class="tablenoborder"><table cellpadding="4" cellspacing="0" summary="" id="UpdateSlavePriority__response_ErrorResponse" frame="border" border="1" rules="all"><caption><b>Table 3 </b>Response body parameters</caption><thead align="left"><tr><th align="left" class="cellrowborder" valign="top" width="20%" id="mcps1.3.4.3.2.4.1.1"><p>Parameter</p>
</th>
<th align="left" class="cellrowborder" valign="top" width="20%" id="mcps1.3.4.3.2.4.1.2"><p>Type</p>
</th>
<th align="left" class="cellrowborder" valign="top" width="60%" id="mcps1.3.4.3.2.4.1.3"><p>Description</p>
</th>
</tr>
</thead>
<tbody><tr><td class="cellrowborder" valign="top" width="20%" headers="mcps1.3.4.3.2.4.1.1 "><p>error_msg</p>
</td>
<td class="cellrowborder" valign="top" width="20%" headers="mcps1.3.4.3.2.4.1.2 "><p>String</p>
</td>
<td class="cellrowborder" valign="top" width="60%" headers="mcps1.3.4.3.2.4.1.3 "><p>Error message.</p>
<p>Maximum: <strong>1024</strong></p>
</td>
</tr>
<tr><td class="cellrowborder" valign="top" width="20%" headers="mcps1.3.4.3.2.4.1.1 "><p>error_code</p>
</td>
<td class="cellrowborder" valign="top" width="20%" headers="mcps1.3.4.3.2.4.1.2 "><p>String</p>
</td>
<td class="cellrowborder" valign="top" width="60%" headers="mcps1.3.4.3.2.4.1.3 "><p>Error code.</p>
<p>Maximum: <strong>9</strong></p>
</td>
</tr>
<tr><td class="cellrowborder" valign="top" width="20%" headers="mcps1.3.4.3.2.4.1.1 "><p>error_ext_msg</p>
</td>
<td class="cellrowborder" valign="top" width="20%" headers="mcps1.3.4.3.2.4.1.2 "><p>String</p>
</td>
<td class="cellrowborder" valign="top" width="60%" headers="mcps1.3.4.3.2.4.1.3 "><p>Extended error information. This parameter is not used currently and is set to <strong>null</strong>.</p>
<p>Maximum: <strong>1024</strong></p>
</td>
</tr>
</tbody>
</table>
</div>
<p><strong>Status code: 401</strong></p>
<div class="tablenoborder"><table cellpadding="4" cellspacing="0" summary="" id="UpdateSlavePriority__response_ErrorResponse_1" frame="border" border="1" rules="all"><caption><b>Table 4 </b>Response body parameters</caption><thead align="left"><tr><th align="left" class="cellrowborder" valign="top" width="20%" id="mcps1.3.4.5.2.4.1.1"><p>Parameter</p>
</th>
<th align="left" class="cellrowborder" valign="top" width="20%" id="mcps1.3.4.5.2.4.1.2"><p>Type</p>
</th>
<th align="left" class="cellrowborder" valign="top" width="60%" id="mcps1.3.4.5.2.4.1.3"><p>Description</p>
</th>
</tr>
</thead>
<tbody><tr><td class="cellrowborder" valign="top" width="20%" headers="mcps1.3.4.5.2.4.1.1 "><p>error_msg</p>
</td>
<td class="cellrowborder" valign="top" width="20%" headers="mcps1.3.4.5.2.4.1.2 "><p>String</p>
</td>
<td class="cellrowborder" valign="top" width="60%" headers="mcps1.3.4.5.2.4.1.3 "><p>Error message.</p>
<p>Maximum: <strong>1024</strong></p>
</td>
</tr>
<tr><td class="cellrowborder" valign="top" width="20%" headers="mcps1.3.4.5.2.4.1.1 "><p>error_code</p>
</td>
<td class="cellrowborder" valign="top" width="20%" headers="mcps1.3.4.5.2.4.1.2 "><p>String</p>
</td>
<td class="cellrowborder" valign="top" width="60%" headers="mcps1.3.4.5.2.4.1.3 "><p>Error code.</p>
<p>Maximum: <strong>9</strong></p>
</td>
</tr>
<tr><td class="cellrowborder" valign="top" width="20%" headers="mcps1.3.4.5.2.4.1.1 "><p>error_ext_msg</p>
</td>
<td class="cellrowborder" valign="top" width="20%" headers="mcps1.3.4.5.2.4.1.2 "><p>String</p>
</td>
<td class="cellrowborder" valign="top" width="60%" headers="mcps1.3.4.5.2.4.1.3 "><p>Extended error information. This parameter is not used currently and is set to <strong>null</strong>.</p>
<p>Maximum: <strong>1024</strong></p>
</td>
</tr>
</tbody>
</table>
</div>
<p><strong>Status code: 403</strong></p>
<div class="tablenoborder"><table cellpadding="4" cellspacing="0" summary="" id="UpdateSlavePriority__response_ErrorResponse_2" frame="border" border="1" rules="all"><caption><b>Table 5 </b>Response body parameters</caption><thead align="left"><tr><th align="left" class="cellrowborder" valign="top" width="20%" id="mcps1.3.4.7.2.4.1.1"><p>Parameter</p>
</th>
<th align="left" class="cellrowborder" valign="top" width="20%" id="mcps1.3.4.7.2.4.1.2"><p>Type</p>
</th>
<th align="left" class="cellrowborder" valign="top" width="60%" id="mcps1.3.4.7.2.4.1.3"><p>Description</p>
</th>
</tr>
</thead>
<tbody><tr><td class="cellrowborder" valign="top" width="20%" headers="mcps1.3.4.7.2.4.1.1 "><p>error_msg</p>
</td>
<td class="cellrowborder" valign="top" width="20%" headers="mcps1.3.4.7.2.4.1.2 "><p>String</p>
</td>
<td class="cellrowborder" valign="top" width="60%" headers="mcps1.3.4.7.2.4.1.3 "><p>Error message.</p>
<p>Maximum: <strong>1024</strong></p>
</td>
</tr>
<tr><td class="cellrowborder" valign="top" width="20%" headers="mcps1.3.4.7.2.4.1.1 "><p>error_code</p>
</td>
<td class="cellrowborder" valign="top" width="20%" headers="mcps1.3.4.7.2.4.1.2 "><p>String</p>
</td>
<td class="cellrowborder" valign="top" width="60%" headers="mcps1.3.4.7.2.4.1.3 "><p>Error code.</p>
<p>Maximum: <strong>9</strong></p>
</td>
</tr>
<tr><td class="cellrowborder" valign="top" width="20%" headers="mcps1.3.4.7.2.4.1.1 "><p>error_ext_msg</p>
</td>
<td class="cellrowborder" valign="top" width="20%" headers="mcps1.3.4.7.2.4.1.2 "><p>String</p>
</td>
<td class="cellrowborder" valign="top" width="60%" headers="mcps1.3.4.7.2.4.1.3 "><p>Extended error information. This parameter is not used currently and is set to <strong>null</strong>.</p>
<p>Maximum: <strong>1024</strong></p>
</td>
</tr>
</tbody>
</table>
</div>
<p><strong>Status code: 404</strong></p>
<div class="tablenoborder"><table cellpadding="4" cellspacing="0" summary="" id="UpdateSlavePriority__response_ErrorResponse_3" frame="border" border="1" rules="all"><caption><b>Table 6 </b>Response body parameters</caption><thead align="left"><tr><th align="left" class="cellrowborder" valign="top" width="20%" id="mcps1.3.4.9.2.4.1.1"><p>Parameter</p>
</th>
<th align="left" class="cellrowborder" valign="top" width="20%" id="mcps1.3.4.9.2.4.1.2"><p>Type</p>
</th>
<th align="left" class="cellrowborder" valign="top" width="60%" id="mcps1.3.4.9.2.4.1.3"><p>Description</p>
</th>
</tr>
</thead>
<tbody><tr><td class="cellrowborder" valign="top" width="20%" headers="mcps1.3.4.9.2.4.1.1 "><p>error_msg</p>
</td>
<td class="cellrowborder" valign="top" width="20%" headers="mcps1.3.4.9.2.4.1.2 "><p>String</p>
</td>
<td class="cellrowborder" valign="top" width="60%" headers="mcps1.3.4.9.2.4.1.3 "><p>Error message.</p>
<p>Maximum: <strong>1024</strong></p>
</td>
</tr>
<tr><td class="cellrowborder" valign="top" width="20%" headers="mcps1.3.4.9.2.4.1.1 "><p>error_code</p>
</td>
<td class="cellrowborder" valign="top" width="20%" headers="mcps1.3.4.9.2.4.1.2 "><p>String</p>
</td>
<td class="cellrowborder" valign="top" width="60%" headers="mcps1.3.4.9.2.4.1.3 "><p>Error code.</p>
<p>Maximum: <strong>9</strong></p>
</td>
</tr>
<tr><td class="cellrowborder" valign="top" width="20%" headers="mcps1.3.4.9.2.4.1.1 "><p>error_ext_msg</p>
</td>
<td class="cellrowborder" valign="top" width="20%" headers="mcps1.3.4.9.2.4.1.2 "><p>String</p>
</td>
<td class="cellrowborder" valign="top" width="60%" headers="mcps1.3.4.9.2.4.1.3 "><p>Extended error information. This parameter is not used currently and is set to <strong>null</strong>.</p>
<p>Maximum: <strong>1024</strong></p>
</td>
</tr>
</tbody>
</table>
</div>
<p><strong>Status code: 500</strong></p>
<div class="tablenoborder"><table cellpadding="4" cellspacing="0" summary="" id="UpdateSlavePriority__response_ErrorResponse_4" frame="border" border="1" rules="all"><caption><b>Table 7 </b>Response body parameters</caption><thead align="left"><tr><th align="left" class="cellrowborder" valign="top" width="20%" id="mcps1.3.4.11.2.4.1.1"><p>Parameter</p>
</th>
<th align="left" class="cellrowborder" valign="top" width="20%" id="mcps1.3.4.11.2.4.1.2"><p>Type</p>
</th>
<th align="left" class="cellrowborder" valign="top" width="60%" id="mcps1.3.4.11.2.4.1.3"><p>Description</p>
</th>
</tr>
</thead>
<tbody><tr><td class="cellrowborder" valign="top" width="20%" headers="mcps1.3.4.11.2.4.1.1 "><p>error_msg</p>
</td>
<td class="cellrowborder" valign="top" width="20%" headers="mcps1.3.4.11.2.4.1.2 "><p>String</p>
</td>
<td class="cellrowborder" valign="top" width="60%" headers="mcps1.3.4.11.2.4.1.3 "><p>Error message.</p>
<p>Maximum: <strong>1024</strong></p>
</td>
</tr>
<tr><td class="cellrowborder" valign="top" width="20%" headers="mcps1.3.4.11.2.4.1.1 "><p>error_code</p>
</td>
<td class="cellrowborder" valign="top" width="20%" headers="mcps1.3.4.11.2.4.1.2 "><p>String</p>
</td>
<td class="cellrowborder" valign="top" width="60%" headers="mcps1.3.4.11.2.4.1.3 "><p>Error code.</p>
<p>Maximum: <strong>9</strong></p>
</td>
</tr>
<tr><td class="cellrowborder" valign="top" width="20%" headers="mcps1.3.4.11.2.4.1.1 "><p>error_ext_msg</p>
</td>
<td class="cellrowborder" valign="top" width="20%" headers="mcps1.3.4.11.2.4.1.2 "><p>String</p>
</td>
<td class="cellrowborder" valign="top" width="60%" headers="mcps1.3.4.11.2.4.1.3 "><p>Extended error information. This parameter is not used currently and is set to <strong>null</strong>.</p>
<p>Maximum: <strong>1024</strong></p>
</td>
</tr>
</tbody>
</table>
</div>
</div>
<div class="section"><h4 class="sectiontitle">Example Requests</h4><p>Setting the replica priority to 100</p>
<pre class="screen">POST https://{dcs_endpoint}/v2/{project_id}/instance/{instance_id}/groups/{group_id}/replications/{node_id}/slave-priority
{
"slave_priority_weight" : 100
}</pre>
</div>
<div class="section"><h4 class="sectiontitle">Example Responses</h4><p>None</p>
</div>
<div class="section"><h4 class="sectiontitle">Status Codes</h4>
<div class="tablenoborder"><table cellpadding="4" cellspacing="0" summary="" id="UpdateSlavePriority__status_code" frame="border" border="1" rules="all"><thead align="left"><tr><th align="left" class="cellrowborder" valign="top" width="15%" id="mcps1.3.7.2.1.3.1.1"><p>Status Code</p>
</th>
<th align="left" class="cellrowborder" valign="top" width="85%" id="mcps1.3.7.2.1.3.1.2"><p>Description</p>
</th>
</tr>
</thead>
<tbody><tr><td class="cellrowborder" valign="top" width="15%" headers="mcps1.3.7.2.1.3.1.1 "><p>204</p>
</td>
<td class="cellrowborder" valign="top" width="85%" headers="mcps1.3.7.2.1.3.1.2 "><p>Replica priority configured successfully.</p>
</td>
</tr>
<tr><td class="cellrowborder" valign="top" width="15%" headers="mcps1.3.7.2.1.3.1.1 "><p>400</p>
</td>
<td class="cellrowborder" valign="top" width="85%" headers="mcps1.3.7.2.1.3.1.2 "><p>Invalid request.</p>
</td>
</tr>
<tr><td class="cellrowborder" valign="top" width="15%" headers="mcps1.3.7.2.1.3.1.1 "><p>401</p>
</td>
<td class="cellrowborder" valign="top" width="85%" headers="mcps1.3.7.2.1.3.1.2 "><p>Invalid authentication information.</p>
</td>
</tr>
<tr><td class="cellrowborder" valign="top" width="15%" headers="mcps1.3.7.2.1.3.1.1 "><p>403</p>
</td>
<td class="cellrowborder" valign="top" width="85%" headers="mcps1.3.7.2.1.3.1.2 "><p>The request is rejected.</p>
</td>
</tr>
<tr><td class="cellrowborder" valign="top" width="15%" headers="mcps1.3.7.2.1.3.1.1 "><p>404</p>
</td>
<td class="cellrowborder" valign="top" width="85%" headers="mcps1.3.7.2.1.3.1.2 "><p>The requested resource is not found.</p>
</td>
</tr>
<tr><td class="cellrowborder" valign="top" width="15%" headers="mcps1.3.7.2.1.3.1.1 "><p>500</p>
</td>
<td class="cellrowborder" valign="top" width="85%" headers="mcps1.3.7.2.1.3.1.2 "><p>Internal service error.</p>
</td>
</tr>
</tbody>
</table>
</div>
</div>
<div class="section"><h4 class="sectiontitle">Error Codes</h4><p>See <a href="ErrorCode.html">Error Codes</a>.</p>
</div>
</div>
<div>
<div class="familylinks">
<div class="parentlink"><strong>Parent topic:</strong> <a href="GroupReplicationManagement.html">Shards and Replicas</a></div>
</div>
</div>