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Apache Kafka - Interview Questions and Answers for 'Kafka consumer' - 4 question(s) found - Order By Newest

 Q1. Can we have multiple threads consuming message stream from a single partition ?

Ans. Yes, by having multiple Consumer Groups.

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 Q2. Can we have multiple threads consuming messages from a single partition if we have single Consumer Group ?

Ans. No, we can only have max 1 thread per partition in a single Consumer Group.

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 Q3. If we have more threads than partitions in a kafka consumer, How can we model it efficiently ?

Ans. We will have to use multiple consumer groups in that case as threads will remain idle if we use single consumer group. A more sophisticated algorithm could be required with multiple groups if we have to ensure the order of consumption.

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 Q4. How can we makes sure that message has been consumed properly from Kafka ?Apache Kafka2017-08-17 15:29:49

Ans. We can have a mechanism to send the conformation back to Kafka so that Kafka can do offset only after receiving the confirmation.

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