Which time value gets assigned to kafka record message.timestamp (kafka-python library)?

Question

在 kafka-python 库的官方文档中，实际上没有任何关于分配给消费记录.timestamp属性的值的内容。

Answer 1

The value of this Kafka timestamp depends on the log.message.timestamp.type broker configuration (see https://kafka.apache.org/documentation/#log.message.timestamp.type ), which can be set to CreateTime (ie client producer timestamp) or LogAppendTime (ie broker timestamp).

Here's an extract of the producer client documentation that clarifies it:

If CreateTime is used by the topic, the timestamp will be the user provided timestamp or the record send time if the user did not specify a timestamp for the record. If LogAppendTime is used for the topic, the timestamp will be the Kafka broker local time when the message is appended.