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Posted to jira@kafka.apache.org by "Yishun Guan (JIRA)" <ji...@apache.org> on 2019/01/07 21:17:00 UTC
[jira] [Commented] (KAFKA-7699) Improve wall-clock time
punctuations
[ https://issues.apache.org/jira/browse/KAFKA-7699?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16736364#comment-16736364 ]
Yishun Guan commented on KAFKA-7699:
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Hi, just curious (I am not an expert in this), why won't _ScheduledExecutorService_ works __ in this case? thanks!
> Improve wall-clock time punctuations
> ------------------------------------
>
> Key: KAFKA-7699
> URL: https://issues.apache.org/jira/browse/KAFKA-7699
> Project: Kafka
> Issue Type: New Feature
> Components: streams
> Reporter: Matthias J. Sax
> Priority: Major
> Labels: needs-kip
>
> Currently, wall-clock time punctuation allow to schedule periodic call backs based on wall-clock time progress. The punctuation time starts, when the punctuation is scheduled, thus, it's non-deterministic what is desired for many use cases (I want a call-back in 5 minutes from "now").
> It would be a nice improvement, to allow users to "anchor" wall-clock punctation, too, similar to a cron job: Thus, a punctuation would be triggered at "fixed" times like the beginning of the next hour, independent when the punctuation was registered.
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