kafka topic deletion

[#1]

yesterday i deleted some topics in my kafka with below command

./kafka-topics.sh — zookeeper localhost:2181 — delete — topic <topic_name>

with the configuration of

delete.topic.enable=true

after 20 hrs i checked those topics still not deleted. how can we force delete those topics. and why it will take this much time to delete the topic?

[#2 · Accepted solution]

This Cloudera Community video may help. 

[#3]

Can we delete kafka consumer group data?

not the consumer group need to delete group data?