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doc-exports/docs/dms/api-ref/CreateReassignmentTask.html
Chen, Junjie f5b629cc78 DMS API 20240722 version 
Reviewed-by: Ziuzko, Stanislav <stanislav.ziuzko@t-systems.com>
Co-authored-by: Chen, Junjie <chenjunjie@huawei.com>
Co-committed-by: Chen, Junjie <chenjunjie@huawei.com>
2024-09-06 09:17:23 +00:00

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<a name="CreateReassignmentTask"></a><a name="CreateReassignmentTask"></a>
<h1 class="topictitle1">Initiating Partition Reassigning for a Kafka Instance</h1>
<div id="body1708331107508"><div class="section"><h4 class="sectiontitle">Function</h4><p>This API is used to submit a partition rebalancing task to a Kafka instance or calculate estimated rebalancing time.</p>
</div>
<div class="section" id="CreateReassignmentTask__atuogenerate_1"><h4 class="sectiontitle">URI</h4><p>POST /v2/kafka/{project_id}/instances/{instance_id}/reassign</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 about how to obtain it, see <a href="kafka-api-0036212547.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>
</tbody>
</table>
</div>
</div>
<div class="section"><h4 class="sectiontitle">Request Parameters</h4>
<div class="tablenoborder"><table cellpadding="4" cellspacing="0" summary="" id="CreateReassignmentTask__request_PartitionReassignRequest" 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>reassignments</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>Array of <a href="#CreateReassignmentTask__request_PartitionReassignEntity">PartitionReassignEntity</a> objects</p>
</td>
<td class="cellrowborder" valign="top" width="40%" headers="mcps1.3.3.2.2.5.1.4 "><p>Reassignment plan.</p>
</td>
</tr>
<tr><td class="cellrowborder" valign="top" width="20%" headers="mcps1.3.3.2.2.5.1.1 "><p>throttle</p>
</td>
<td class="cellrowborder" valign="top" width="20%" headers="mcps1.3.3.2.2.5.1.2 "><p>No</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>Reassignment threshold.</p>
</td>
</tr>
<tr><td class="cellrowborder" valign="top" width="20%" headers="mcps1.3.3.2.2.5.1.1 "><p>is_schedule</p>
</td>
<td class="cellrowborder" valign="top" width="20%" headers="mcps1.3.3.2.2.5.1.2 "><p>No</p>
</td>
<td class="cellrowborder" valign="top" width="20%" headers="mcps1.3.3.2.2.5.1.3 "><p>Boolean</p>
</td>
<td class="cellrowborder" valign="top" width="40%" headers="mcps1.3.3.2.2.5.1.4 "><p>Indicates whether the task is scheduled. If no, <strong>is_schedule</strong> and <strong>execute_at</strong> can be left blank. If yes, <strong>is_schedule</strong> is <strong>true</strong> and <strong>execute_at</strong> must be specified.</p>
</td>
</tr>
<tr><td class="cellrowborder" valign="top" width="20%" headers="mcps1.3.3.2.2.5.1.1 "><p>execute_at</p>
</td>
<td class="cellrowborder" valign="top" width="20%" headers="mcps1.3.3.2.2.5.1.2 "><p>No</p>
</td>
<td class="cellrowborder" valign="top" width="20%" headers="mcps1.3.3.2.2.5.1.3 "><p>Long</p>
</td>
<td class="cellrowborder" valign="top" width="40%" headers="mcps1.3.3.2.2.5.1.4 "><p>Schedule time. The value is a UNIX timestamp, in ms.</p>
</td>
</tr>
<tr><td class="cellrowborder" valign="top" width="20%" headers="mcps1.3.3.2.2.5.1.1 "><p>time_estimate</p>
</td>
<td class="cellrowborder" valign="top" width="20%" headers="mcps1.3.3.2.2.5.1.2 "><p>No</p>
</td>
<td class="cellrowborder" valign="top" width="20%" headers="mcps1.3.3.2.2.5.1.3 "><p>Boolean</p>
</td>
<td class="cellrowborder" valign="top" width="40%" headers="mcps1.3.3.2.2.5.1.4 "><p>Set <strong>true</strong> to perform time estimation tasks and <strong>false</strong> to perform rebalancing tasks.</p>
</td>
</tr>
</tbody>
</table>
</div>
<div class="tablenoborder"><a name="CreateReassignmentTask__request_PartitionReassignEntity"></a><a name="request_PartitionReassignEntity"></a><table cellpadding="4" cellspacing="0" summary="" id="CreateReassignmentTask__request_PartitionReassignEntity" frame="border" border="1" rules="all"><caption><b>Table 3 </b>PartitionReassignEntity</caption><thead align="left"><tr><th align="left" class="cellrowborder" valign="top" width="20%" id="mcps1.3.3.3.2.5.1.1"><p>Parameter</p>
</th>
<th align="left" class="cellrowborder" valign="top" width="20%" id="mcps1.3.3.3.2.5.1.2"><p>Mandatory</p>
</th>
<th align="left" class="cellrowborder" valign="top" width="20%" id="mcps1.3.3.3.2.5.1.3"><p>Type</p>
</th>
<th align="left" class="cellrowborder" valign="top" width="40%" id="mcps1.3.3.3.2.5.1.4"><p>Description</p>
</th>
</tr>
</thead>
<tbody><tr><td class="cellrowborder" valign="top" width="20%" headers="mcps1.3.3.3.2.5.1.1 "><p>topic</p>
</td>
<td class="cellrowborder" valign="top" width="20%" headers="mcps1.3.3.3.2.5.1.2 "><p>Yes</p>
</td>
<td class="cellrowborder" valign="top" width="20%" headers="mcps1.3.3.3.2.5.1.3 "><p>String</p>
</td>
<td class="cellrowborder" valign="top" width="40%" headers="mcps1.3.3.3.2.5.1.4 "><p>Topic name.</p>
</td>
</tr>
<tr><td class="cellrowborder" valign="top" width="20%" headers="mcps1.3.3.3.2.5.1.1 "><p>brokers</p>
</td>
<td class="cellrowborder" valign="top" width="20%" headers="mcps1.3.3.3.2.5.1.2 "><p>No</p>
</td>
<td class="cellrowborder" valign="top" width="20%" headers="mcps1.3.3.3.2.5.1.3 "><p>Array of integers</p>
</td>
<td class="cellrowborder" valign="top" width="40%" headers="mcps1.3.3.3.2.5.1.4 "><p>List of brokers to which partitions are reassigned. This parameter is mandatory in automatic assignment.</p>
</td>
</tr>
<tr><td class="cellrowborder" valign="top" width="20%" headers="mcps1.3.3.3.2.5.1.1 "><p>replication_factor</p>
</td>
<td class="cellrowborder" valign="top" width="20%" headers="mcps1.3.3.3.2.5.1.2 "><p>No</p>
</td>
<td class="cellrowborder" valign="top" width="20%" headers="mcps1.3.3.3.2.5.1.3 "><p>Integer</p>
</td>
<td class="cellrowborder" valign="top" width="40%" headers="mcps1.3.3.3.2.5.1.4 "><p>Replication factor, which can be specified in automatic assignment.</p>
</td>
</tr>
<tr><td class="cellrowborder" valign="top" width="20%" headers="mcps1.3.3.3.2.5.1.1 "><p>assignment</p>
</td>
<td class="cellrowborder" valign="top" width="20%" headers="mcps1.3.3.3.2.5.1.2 "><p>No</p>
</td>
<td class="cellrowborder" valign="top" width="20%" headers="mcps1.3.3.3.2.5.1.3 "><p>Array of <a href="#CreateReassignmentTask__request_TopicAssignment">TopicAssignment</a> objects</p>
</td>
<td class="cellrowborder" valign="top" width="40%" headers="mcps1.3.3.3.2.5.1.4 "><p>Manually specified assignment plan. The <strong>brokers</strong> parameter and this parameter cannot be empty at the same time.</p>
</td>
</tr>
</tbody>
</table>
</div>
<div class="tablenoborder"><a name="CreateReassignmentTask__request_TopicAssignment"></a><a name="request_TopicAssignment"></a><table cellpadding="4" cellspacing="0" summary="" id="CreateReassignmentTask__request_TopicAssignment" frame="border" border="1" rules="all"><caption><b>Table 4 </b>TopicAssignment</caption><thead align="left"><tr><th align="left" class="cellrowborder" valign="top" width="20%" id="mcps1.3.3.4.2.5.1.1"><p>Parameter</p>
</th>
<th align="left" class="cellrowborder" valign="top" width="20%" id="mcps1.3.3.4.2.5.1.2"><p>Mandatory</p>
</th>
<th align="left" class="cellrowborder" valign="top" width="20%" id="mcps1.3.3.4.2.5.1.3"><p>Type</p>
</th>
<th align="left" class="cellrowborder" valign="top" width="40%" id="mcps1.3.3.4.2.5.1.4"><p>Description</p>
</th>
</tr>
</thead>
<tbody><tr><td class="cellrowborder" valign="top" width="20%" headers="mcps1.3.3.4.2.5.1.1 "><p>partition</p>
</td>
<td class="cellrowborder" valign="top" width="20%" headers="mcps1.3.3.4.2.5.1.2 "><p>No</p>
</td>
<td class="cellrowborder" valign="top" width="20%" headers="mcps1.3.3.4.2.5.1.3 "><p>Integer</p>
</td>
<td class="cellrowborder" valign="top" width="40%" headers="mcps1.3.3.4.2.5.1.4 "><p>Partition number in manual assignment.</p>
</td>
</tr>
<tr><td class="cellrowborder" valign="top" width="20%" headers="mcps1.3.3.4.2.5.1.1 "><p>partition_brokers</p>
</td>
<td class="cellrowborder" valign="top" width="20%" headers="mcps1.3.3.4.2.5.1.2 "><p>No</p>
</td>
<td class="cellrowborder" valign="top" width="20%" headers="mcps1.3.3.4.2.5.1.3 "><p>Array of integers</p>
</td>
<td class="cellrowborder" valign="top" width="40%" headers="mcps1.3.3.4.2.5.1.4 "><p>List of brokers to be assigned to a partition in manual assignment.</p>
</td>
</tr>
</tbody>
</table>
</div>
</div>
<div class="section"><h4 class="sectiontitle">Response Parameters</h4><p><strong>Status code: 200</strong></p>
<div class="tablenoborder"><table cellpadding="4" cellspacing="0" summary="" id="CreateReassignmentTask__response_PartitionReassignmentResp" 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="mcps1.3.4.3.2.4.1.1"><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>job_id</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>Task ID. Only <strong>job_id</strong> is returned for a rebalancing task.</p>
</td>
</tr>
<tr><td class="cellrowborder" valign="top" width="20%" headers="mcps1.3.4.3.2.4.1.1 "><p>reassignment_time</p>
</td>
<td class="cellrowborder" valign="top" width="20%" headers="mcps1.3.4.3.2.4.1.2 "><p>Integer</p>
</td>
<td class="cellrowborder" valign="top" width="60%" headers="mcps1.3.4.3.2.4.1.3 "><p>Estimated time, in seconds. Only <strong>reassignment_time</strong> is returned for a time estimation task.</p>
</td>
</tr>
</tbody>
</table>
</div>
</div>
<div class="section"><h4 class="sectiontitle">Example Requests</h4><pre class="screen">POST https://{endpoint}/v2/kafka/{project_id}/instances/{instance_id}/reassign
{
"reassignments" : [ {
"topic" : "topic-1513476102",
"brokers" : [ 0, 1, 2 ],
"replication_factor" : 3,
"assignment" : [ {
"partition" : 0,
"partition_brokers" : [ 0, 1, 2 ]
}, {
"partition" : 1,
"partition_brokers" : [ 1, 2, 0 ]
}, {
"partition" : 2,
"partition_brokers" : [ 2, 0, 1 ]
} ]
}, {
"topic" : "topic-1513558717",
"brokers" : [ 0, 1, 4 ],
"replication_factor" : 3,
"assignment" : [ {
"partition" : 0,
"partition_brokers" : [ 0, 1, 2 ]
}, {
"partition" : 1,
"partition_brokers" : [ 1, 2, 0 ]
}, {
"partition" : 2,
"partition_brokers" : [ 2, 0, 1 ]
} ]
} ],
"throttle" : 10000000,
"time_estimate" : false
}</pre>
</div>
<div class="section"><h4 class="sectiontitle">Example Responses</h4><p><strong>Status code: 200</strong></p>
<p>Rebalancing task submitted or the estimated time is returned.</p>
<pre class="screen">{
"job_id" : "8a2c259182ab0e9d0182ab1882560009",
"reassignment_time" : 10
}</pre>
</div>
<div class="section"><h4 class="sectiontitle">Status Codes</h4>
<div class="tablenoborder"><table cellpadding="4" cellspacing="0" summary="" id="CreateReassignmentTask__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>200</p>
</td>
<td class="cellrowborder" valign="top" width="85%" headers="mcps1.3.7.2.1.3.1.2 "><p>Rebalancing task submitted or the estimated time is returned.</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="topic_300000001.html">Instance Management</a></div>
</div>
</div>
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