How to see the retention for a particular topic in kafka

Question

I want to see the retention period set for a particular topic. Is there any command? I tried with

bin/kafka-topics.sh --zookeeper hostname:2181 --alter --con         


        

Answer 1

Alternative ways:

1. use call sh-command through a container

docker run --rm -it confluentinc/cp-kafka:latest sh -c "kafka-topics --zookeeper 11.22.33.44:5555 --describe --topic topic-name"

2. use Kafka Tool

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Take into account that it would be displayed just params different from default values.

At the example above, the retention.ms is 14 days, when default one is 7 days.