Kafka Topics
Overview
The Kafka Topics page in Condense provides a management interface to view, create, and configure topics within a Kafka cluster. From this page, administrators can define replication and partitioning, adjust retention policies, and apply advanced topic-level settings without requiring direct Kafka CLI commands.
Path: Kafka Management → Kafka Topics
Topic List
On the left-hand panel, Condense displays all existing topics in the connected Kafka cluster.
Topics are listed alphabetically.
A search box allows filtering by topic name.
Selecting a topic loads its configuration details in the main panel.
Topic Actions
For each topic, Condense provides the following actions in the top-right menu:
Messages → Opens the message viewer for browsing records in the topic.
Edit → Enables modification of topic configuration.
Delete → Permanently deletes the selected topic from the cluster.
Additionally, the Create Topic button allows new topic creation with custom parameters.
Basic Configuration
When creating or editing a topic, the following required fields must be defined:
Replication Factor
Number of replicas for each partition. Ensures data availability.
3
No of Partitions
Number of partitions in the topic. Determines parallelism and throughput.
6
Retention Period (days)
Duration for which messages are retained in the topic before deletion.
7
Advanced Configurations
Advanced settings allow fine-grained control of topic behavior. These fields map directly to Kafka topic configuration parameters.
Cleanup Policy
Determines log cleanup strategy. Options: Delete (default), Compact.
Delete
Delete Retention Period (days)
How long delete markers are retained during log compaction.
1
Max Compaction Lag (ms)
Maximum time a record can remain uncompacted.
9223372036854775807
Max Message Size (bytes)
Maximum size of an individual message allowed.
5242940
Message Timestamp After Max (ms)
Upper bound for timestamp range in messages.
9223372036854775807
Message Timestamp Before Max (ms)
Lower bound for timestamp range in messages.
9223372036854775807
Message Timestamp Type
Defines how message timestamps are set. Options: CreateTime, LogAppendTime.
CreateTime
Min Compaction Lag (ms)
Minimum time a record must remain before compaction.
0
Min In-Sync Replicas
Minimum number of replicas that must acknowledge a write for it to succeed.
1
Retention Size (bytes)
Maximum total size of log segments retained before deletion. -1 = unlimited.
-1
Segment Size (bytes)
Size of each log segment file before rolling.
1073741824
Segment Period (ms)
Time-based rolling interval for log segments.
604800000
Usage Notes
All advanced fields correspond to Kafka’s topic-level configuration properties.
Fields not explicitly set in Condense will use Kafka cluster defaults.
Certain changes (e.g., partition count) are not reversible once applied.
Care must be taken with retention and cleanup policies to avoid unintended data loss.
Related Sections
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