changing kafka retention period during runtime

Question

With Kafka 0.8.1.1, how do I change the log retention time while it\'s running? The documentation says the property is log.retention.hours, but trying to change

Answer 1

The correct config key is retention.ms

$ bin/kafka-topics.sh --zookeeper zk.prod.yoursite.com --alter --topic as-access --config retention.ms=86400000
Updated config for topic "my-topic".