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How to keep some sort of ordering between joined streams?

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难度
5/5
预计耗时
一周以上
新手友好度
25/100
Issue 类型
功能
描述清晰度
需要澄清
活跃度
停滞
技术栈
kafka, python

调研方向

Start by reading the combine_latest behavior and the Kafka stream handling described in the issue. Determine how bounded skew and a temporarily unavailable source should affect emissions; done requires an agreed design and tests for delayed and stopped streams.

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描述

Say I have two source streams on kafka, one updating at 1 message per second, and one updating at 5 messages per second. I am using a combine_latest to join the streams. What would be the most appropriate way to not allow the streams to get more than ~10s out of sync? I effectively want to push futures back up one stream, blocking until more data arrives on the second.

Or in another scenario, suppose one of the sources dies temporarily. I really would like to be able to hault any more emits until the source comes back to life.

主要语言
Python
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