Kafka消费者偏移最大值?

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问题描述

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我在谷歌上搜索并阅读 Kafka 文档，但我找不到消费者偏移量的最大值以及最大值后是否有偏移量环绕.我知道偏移量是一个 Int64 值，所以最大值是 0xFFFFFFFFFFFFFFFF.如果有环绕，Kafka 如何处理这种情况?

I was googling and reading Kafka documentation but I couldn't find out the max value of a consumer offset and whether there is offset wraparound after max value. I understand offset is an Int64 value so max value is 0xFFFFFFFFFFFFFFFF. If there is wraparound, how does Kafka handle this situation?

推荐答案

根据这个 post，偏移量未重置:

According to this post, the offset is not reset:

我们目前不回滚偏移量.由于偏移量很长，它可以持续很长时间.一天写1TB就可以继续大约 400 万天.

We don't roll back offset at this moment. Since the offset is a long, it can last for a really long time. If you write 1TB a day, you can keep going for about 4 million days.

此外，您始终可以使用更多分区(每个分区都有自己的偏移量).

Plus, you can always use more partitions (each partition has its own offset).

正如卢西亚诺所说，可能不值得担心.

So as Luciano said, probably not worth worrying about.

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