What is the data retention policy in Kafka?
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What is the data retention policy in Kafka?
In Kafka, the data retention policy determines how long messages are stored in a topic. By default, messages are retained for 7 days.
Can I change the retention period for a specific topic?
Yes, you can change the retention period for a specific topic using the alter command or by modifying the topic configuration.
What happens to the data after the retention period expires?
Once the retention period expires, Kafka will delete the oldest messages to free up space for new ones.
Is there a way to set a retention policy based on size instead of time?
Yes, Kafka allows you to set a retention policy based on the total size of the topic. You can configure the retention.bytes setting.
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