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TDMQ for CKafka
Step 3. Create a Topic
Last updated: 2025-04-08 17:42:42
Step 3. Create a Topic
Last updated: 2025-04-08 17:42:42

Overview

This document describes how to create a topic under an existing instance in the CKafka console.

Directions

1. Log in to the CKafka console.
2. On the Instance List page, click the ID/Name of the instance created in Step 1. Create an Instance to enter the instance details page.
3. On the instance details page, click Topic Management at the top of the page, and click Create.
4. In the Create Topic dialog box, set parameters as needed.
Parameter
Fill in a Sample
Description
Name
Input Topic Name
Topic name, cannot be changed after input. The name can only contain letters, numbers, underscores, hyphens, and periods. Does not support starting with double underscores.
Partition Count
Keep default values for 3 partitions.
A concept of physical partition. A Topic can contain one or more partitions. CKafka uses partitions as the allocation unit. The deployment architecture defaults to at least 3 nodes. It is recommended to start with at least 3 partitions for a more balanced data distribution. For partition count configuration, refer to Parameter Configuration Instructions.
Number of Replicas
Keep default values for 2 replicas.
The number of replicas of a Partition is used to ensure high availability of the Partition. To ensure data reliability, 2 replicas are enabled by default. The number of replicas is also counted as the number of partitions. For example, if a customer creates 1 Topic, 6 partitions, and 2 replicas, then the Partition limit used is 1 × 6 × 2 = 12.
Note:
Setting as single replica cannot guarantee availability. Proceed with caution.
Tag
Can be left blank.
Tags are used to manage resources by category from different dimensions. For more details about tags, see Tag Management.
retention.ms
Keep default values for 3 days.
Message retention time in the Topic dimension, ranging from 1 minute to 90 days.
5. Click Submit.
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