从Kafka请求两个时间戳之间的消息 [英] Request messages between two timestamps from Kafka

问题描述

是否可以根据摄取消息的时间段来消耗来自Kafka的消息?

Is it possible to consume messages from Kafka based on a time period in which the messages were ingested?

示例:我希望所有消息吸收到今天的0900-1000(现在是1200)之间.

Example: I want all messages ingested to a topic between 0900-1000 today (and now it's 1200).

如果只有一种方法可以指定开始时间，那很好-我的使用者可以在到达结束时间后停止处理消息.

If there is only a way to specify a start time, that's fine - my consumer can stop processing messages once it reaches the end time.

我可以看到从给定偏移量请求消息，获取第一个可用偏移量和最早可用偏移量的方法，但是在给定时间之后不是所有消息.

I can see methods for requesting messages from a given offset, and for getting the first available offset, and for the earliest available offset, but not all messages after a given time.

推荐答案

您可以使用offsetsForTimes方法，该方法返回时间戳大于或等于给定时间戳的偏移量. 有关官方文档的更多信息，请参见:

You could use the offsetsForTimes method which returns you offset whose timestamp is greater or equal to the give timestamp. More information on the official doc here :

https://kafka.apache.org/0101/javadoc/org/apache/kafka/clients/consumer/KafkaConsumer.html#offsetsForTimes(java.util.Map)

获取偏移量后，您可以尝试使用它并从那里开始读取.

After getting the offset you can seek using it and starting to read from there.

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