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# Managing Topics

On the Topics page, you can run or generate partition assignments, add a new partition, and drill down into individual topics for more information.

To view the complete lists of Topics:

Click Location: Clusters >Cluster Name> Topic> List

Note: The following default topics are used internally by Transformation Hub and should not be deleted, modified, or used by external data producers or consumers.

    __consumer_offsets

     _schemas

    th-arcsight-json-datastore

    th-arcsight-avro-sp_metrics

    th-syslog

    th-arcsight-avro

    mf-event-avro-enriched

    mf-event-avro-esmfiltered

    mf-event-cef-esmfiltered

    th-cef

To manage the topics in your cluster:

Click Topic > List in the navigation bar.

To view information on a topic:

Click the Topic Name link. The Topic Name page displays the topic's summary, metrics, consumers, operations and partitions. See Viewing Topic Details.

To generate partition assignments:

1. Click Generate Partition Assignments.
2. Select the topics and broker nodes to reassign.
3. Click Generate Partition Assignments.

To assign partitions as generated:

1. Click Run Partition Assignments.
2. Select the topics to reassign.
3. Click Run Partition Assignments.

To add a partition:

1. From the Topics Summary page, click Add Partition.
2. Enter the new number of partitions.
3. Select the topics and broker nodes.
4. Click Add Partitions.