Available in VPC
A config group is a feature that manages Kafka configuration files applied to a cluster. This guide describes how to create and delete Kafka configuration files to be applied to a cluster and how to change Kafka config settings.
Config group interface
The config group interface includes the following components:

| Item | Description |
|---|---|
| ① Create config group | Create config group. |
| ② Edit config | Edit the details of a config group. |
| ③ Delete | Delete a config group. |
| ④ Config group list | List of created config groups
|
Create config group
You can create config groups. When creating a config group, default values are automatically assigned, so you do not need to specify settings separately.
To create a config group:
- From the NAVER Cloud Platform console's VPC environment, navigate to
> Services > Big Data & Analytics > Cloud Data Streaming Service > Config Group. - Click [Create config group].
- When the Create config group window appears, enter the required information.
- Version: Select the Kafka version of the config group you want to create.
- Config Group Name: Enter a name for the config group.
- Only English lowercase letters, numbers, and hyphens (-) are allowed. Neither the first nor last character may be a hyphen (-).
- Names must be between 3 and 30 characters.
- Description: Write a brief description of the config group.
- Click [OK].
- Check that the config group has been created.
Edit config group
Since default values are applied to config when creating a cluster, users do not need to specify config values separately. However, if you need to change the Kafka config settings, you can do so directly using the Config Group editing feature. Only alter the config group if you have basic knowledge of Kafka, as the cluster may not operate properly if the user arbitrarily changes the Kafka config settings.
To edit a config group:
- From the NAVER Cloud Platform console's VPC environment, navigate to
> Services > Big Data & Analytics > Cloud Data Streaming Service > Config Group. - Click the checkbox of the config group you want to edit, then click [Edit config].
- Settings that can be changed will appear in the Kafka configuration file (Serverproperties).
- Change the Kafka config settings.
- See Apache Kafka Documentation for descriptions of the configuration values.
- To reset the config to the default values, click [Reset to default].
- Once you've finished editing the config, click [OK].

- Even if you finish editing, the new values will not be applied to the cluster until you restart the cluster. For detailed instructions on how to apply a config group, see Apply a config group to a cluster.
- Not all properties are supported. If you need to add properties, contact our customer service.
- NAVER Cloud is not responsible if the cluster does not operate properly due to the user arbitrarily modifying the config values.
- In the event that the cluster does not operate properly after editing the config values, they can be reset to the default values by clicking [Reset to default].
Apply a config group to a cluster
To apply a config group to a cluster:
- From the NAVER Cloud Platform console's VPC environment, navigate to
> Services > Big Data & Analytics > Cloud Data Streaming Service > Cluster. - In the Details component ofthe cluster to which you want to apply the config group, click the config group
icon.

- When the Change config group window appears, select the config group you want to apply and click [OK].

- When the Config group change confirmation window appears, click [OK].
- After the changes in the config group are applied to the cluster, the cluster will restart.
When applying a config group to a cluster, the cluster will restart after the changes in the config group are applied. Services will be temporarily interrupted when the cluster is restarted, so make sure that there will be no problems with the cluster restarting before applying the config group.
Delete config group
You can delete config groups that are no longer in use. However, a config group is being used by a cluster cannot be deleted. You must delete the cluster that is using the config group or change the config group of the cluster to delete the config group.
To delete a config group:
- From the NAVER Cloud Platform console's VPC environment, navigate to
> Services > Big Data & Analytics > Cloud Data Streaming Service > Config Group. - Click the checkbox of the config group you want to delete, then click [Delete].
- When the Delete window appears, click [OK].
To check which cluster the config group is applied to, click
in the Cluster List.