Managing Topics in Confluent Cloud

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

Important

When VPC peering is enabled, the Confluent Cloud UI dashboard components such as topic management are set up with private endpoints that are not publicly reachable. You must configure internal access. See Configuring Access to the UI Dashboard for details.

Create a Topic

  1. Select your cluster name.

    ../../../_images/cloud-view-details1.png
  2. Click the Topics page and click Create topic.

    ../../../_images/cloud-topic-create-0.png
  3. 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 Configuration Settings.

    ../../../_images/cloud-topic-create-5.png

Edit a Topic

  1. Click the Topics page, click the ellipses (...) next to your cluster name, and click Settings.

    ../../../_images/cloud-topic-create-6.png
  2. Click Edit settings.

    ../../../_images/cloud-topic-create-7.png
  3. Make your changes and click Save changes. By default, only the most commonly modified settings are shown. For advanced settings, scroll to the bottom of the page and click Switch to expert mode.

    Important

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

    ../../../_images/cloud-topic-create-8.png

    The following table lists available parameters in alphabetical order and indicates whether they can be edited. Most can be edited with the exception of the topic name, number of partitions, and replication factor.

    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. Select a cluster from the navigation bar.

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

  3. Click the topic name link. The Configuration page appears.

  4. Click Edit settings -> Delete topic.

  5. You are prompted to confirm deleting the topic. Type the topic name and click Continue. The topic is marked for deletion.

    Confirm topic delete in Confluent Cloud

    Confirm topic delete in Confluent Cloud

    To cancel deleting the topic, click Close.