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From Jake Yoon <jake.y...@eggbun-edu.com>
Subject What's the use of timestamp in ProducerRecord?
Date Fri, 19 Jan 2018 03:46:23 GMT
Hi, I am very new to Kafka.
And I have a very basic question.

Kafka doc says,

 topic, Integer
 partition, Long
 timestamp, K
 key, V

and I know the default timestamp is the current time. But I am not sure
what's the use of it.

- Is it just to log when the record is added?
- How Kafka use it for?
- Are there any other uses of it?
- Can "Consumer" retrieves the timestamp of the "ProducerRecord"?


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