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Kafka's auto.offset.reset value is explained in detail

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Posted on 7/31/2021 11:08:56 AM | | | |
Auto.offset.reset value meaning explained
Review:

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earliest

When there are committed offsets under each partition, consumption starts from the submitted offset; If there is no committed offset, the consumption is started from the beginning

latest

When there are committed offsets under each partition, consumption starts from the submitted offset; When there is no committed offset, the newly generated data under that partition is consumed

none

topicIf there is a committed offset in each partition, it will be consumed from the offset. As long as there is a partition where there is no committed offset, an exception is thrown

Suggested useearliest。

defaultslatestThis setting is easy to lose messages, if there is a problem with the microservice application, and the data is written to the topic, at this time the site application is restarted, this setting will start consumption from the latest offset, and it doesn't matter which ones have problems in the middle. Using earliest mode, after setting this parameter, the microservice application is restarted, and the unconsumed offset can be found to continue consumption.


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