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From "Matthias J. Sax (JIRA)" <j...@apache.org>
Subject [jira] [Created] (KAFKA-7699) Improve wall-clock time punctuations
Date Mon, 03 Dec 2018 18:14:00 GMT
Matthias J. Sax created KAFKA-7699:
--------------------------------------

             Summary: 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


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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