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Posted to jira@kafka.apache.org by "Jakub Miroś (Jira)" <ji...@apache.org> on 2022/05/10 22:30:00 UTC

[jira] [Assigned] (KAFKA-13817) Schedule nextTimeToEmit to system time every time instead of just once

     [ https://issues.apache.org/jira/browse/KAFKA-13817?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Jakub Miroś reassigned KAFKA-13817:
-----------------------------------

    Assignee: Jakub Miroś

> Schedule nextTimeToEmit to system time every time instead of just once
> ----------------------------------------------------------------------
>
>                 Key: KAFKA-13817
>                 URL: https://issues.apache.org/jira/browse/KAFKA-13817
>             Project: Kafka
>          Issue Type: Improvement
>          Components: streams
>            Reporter: Hao Li
>            Assignee: Jakub Miroś
>            Priority: Minor
>              Labels: beginner, newbie
>
> [https://github.com/apache/kafka/blob/trunk/streams/src/main/java/org/apache/kafka/streams/kstream/internals/KStreamKStreamJoin.java#L229-L231.]
>  
> If this is just scheduled once, this can trigger emit every time if system time jumps a lot suddenly.
>  
> For example, 
>  # nextTimeToEmit set to 1 and step is 1
>  # If next system time jumps to 100, we will always emit for next 100 records



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