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Posted to dev@flink.apache.org by "Stephan Ewen (Jira)" <ji...@apache.org> on 2020/05/19 18:19:00 UTC

[jira] [Created] (FLINK-17816) Change Latency Marker to work with "scheduleAtFixedDelay" instead of "scheduleAtFixedRate"

Stephan Ewen created FLINK-17816:
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             Summary: Change Latency Marker to work with "scheduleAtFixedDelay" instead of "scheduleAtFixedRate"
                 Key: FLINK-17816
                 URL: https://issues.apache.org/jira/browse/FLINK-17816
             Project: Flink
          Issue Type: Bug
          Components: Runtime / Task
            Reporter: Stephan Ewen


Latency Markers and other periodic timers are scheduled with {{scheduleAtFixedRate}}. That means every X time the callable is called. If it blocks (backpressure) is can be called immediately again.

I would suggest to switch this to {{scheduleAtFixedDelay}}  to avoid calling for a lot of latency marker injections when there is no way to actually execute the injection call.



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