Managing Topics in Confluent Cloud

You can create, edit, and delete Apache Kafka® topics using the Confluent Cloud interface. The topics are grouped by cluster within each environment.

Important

When private networking is enabled, some Confluent Cloud web UI components including topic management use cluster endpoints that are not publicly reachable. You must configure your network to route requests for these components over the private connection. If you’re using VPC peering, see Configuring Access to the Confluent Cloud Web UI with VPC peering for details. If you’re using AWS PrivateLink or Azure Private Link, see Configuring Access to the Confluent Cloud Web UI with AWS and Azure Private Link for details.

Create a Topic

1. If you have more than one environment, select an environment.

2. Select a cluster from the navigation bar.

3. Click the Topics cluster submenu. The Topics page appears.

4. If there aren’t any topics created yet, click Create topic. Otherwise, click Add a topic.

   

5. Specify your topic details and click Create with defaults. For advanced topic settings, click Customize settings.

   Tip

   For a description of the default Kafka broker configuration settings in Confluent Cloud, see the Confluent Cloud Broker and Topic Configuration Settings.

   

Edit a Topic

1. If you have more than one environment, select an environment.

2. Select a cluster from the navigation bar.

3. Click the Topics cluster submenu.

4. Click the topic name link.

   

5. Click Edit settings.

   

6. Make your changes and click Save changes. By default, only the most commonly modified settings are shown. For advanced settings, click Switch to expert mode.

   Important

   Some topic configuration parameters are not configurable through this interface. These unmodifiable parameters display a lock symbol () next to them. They cannot be changed in either default or expert mode.

   

   The following table lists available parameters in alphabetical order and indicates whether they can be edited.

   Parameter	Configurable
   cleanup.policy	Yes
   cluster	Yes
   compression.type	No
   delete.retention.ms	Yes
   file.delete.delay.ms	No
   flush.messages	No
   flush.ms	No
   follower.replication.throttled.replicas	No
   index.interval.bytes	No
   leader.replication.throttled.replicas	No
   max.message.bytes	Yes
   message.format.version	No
   message.downconversion.enable	No
   message.timestamp.difference.max.ms	Yes
   message.timestamp.type	Yes
   min.cleanable.dirty.ratio	No
   min.compaction.lag.ms	Yes
   min.insync.replicas	No
   name	No
   partitions	No
   preallocate	No
   producer	Yes
   replication.factor	No
   retention.bytes	Yes
   retention.ms	Yes
   segment.bytes	Yes
   segment.index.bytes	No
   segment.jitter.ms	No
   segment.ms	Yes
   tier.enable	No
   unclean.leader.election.enable	No

Delete a Topic

When you request to delete a topic, the topic is marked for deletion. The topic is not deleted immediately unless it is devoid of data, such as a newly created topic. In the interim, you cannot recreate a topic with the same name as the topic being deleted until the original topic and its data is finished being deleted.

Tip

To delete a topic with the Cloud CLI, see ccloud kafka topic delete.

Follow these steps to delete a topic using the GUI:

1. If you have more than one environment, select an environment.
2. Select a cluster from the navigation bar.
3. Click the Topics cluster submenu. The Topics page appears.
4. Click the topic name link. The Configuration page appears.
5. Click Edit settings -> Delete topic.
6. Confirm the topic deletion by typing the topic name and click Continue.