How can you gracefully make a Kafka consumer to stop immediately polling data from Kafka and gracefully shut down a consumer application?

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How can you gracefully make a Kafka consumer to stop immediately polling data from Kafka and gracefully shut down a consumer application?
A . Call consumer.wakeUp() and catch a WakeUpException
B . Call consumer.poll() in another thread
C . Kill the consumer thread

Answer: A

Explanation:

See https://stackoverflow.com/a/37748336/3019499