Kafka Configuration for only seeing last 5 minutes of data

Question

Sorry i am new in Kafka and this question migth be so easy but i need some help. i did not figure out some configurations. There is a stream data, i want Consumers to see

Answer 1

In Kafka server.properties there's a setting called log.segment.bytes, which is set to 1GB by default. Once a log segment has reached 1GB, it is closed, and only after that the retention kicks in. E.g. if you are producing 100MB of message per day, and your retention is 1 week, you'd actually retain the data for around 17 days before it gets deleted. That's because the log segment will take 10 days to be full (1GB) and from that time retention will kick in. In your case, I'm assuming you haven't changed the value for log.segment.bytes, but your retention is very low. So, it won't be able to clean up the data as the log segment is not yet closed.