Each topic in kafka has it's own configurable retention time to manage how long does kafka store data.
The default setting when we create a kafka topic
| Parameter Name | Default | Editable | More Info |
|-|-|-|-|-|
| cleanup.policy | Delete | No | |
| retention.ms | 604800000 (7 days) | Yes | Max: 63113904000 (2 years) |
| Article Title | Link |
|---|---|
| Kafka Topic Configurations for Confluent Platform | link |
| Topic Configures | link |
| Confirming Kafka Topic Time Based Retention Policies | link |
| Kafka Log Retention and Cleanup Policies (medium) | link |
| Some discussion | link |