[jira] [Assigned] (BEAM-3332) AfterProcessingTimer trigger not firing if invoked exactly on time

["Kenneth Knowles (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/BEAM-3332?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Kenneth Knowles reassigned BEAM-3332:
-------------------------------------

    Assignee: Shen Li  (was: Kenneth Knowles)

> AfterProcessingTimer trigger not firing if invoked exactly on time
> ------------------------------------------------------------------
>
>                 Key: BEAM-3332
>                 URL: https://issues.apache.org/jira/browse/BEAM-3332
>             Project: Beam
>          Issue Type: Bug
>          Components: runner-core
>    Affects Versions: 2.0.0, 2.1.0, 2.2.0
>            Reporter: Shen Li
>            Assignee: Shen Li
>            Priority: Trivial
>             Fix For: 2.3.0
>
>
> I occasionally run into an issue that the processing time trigger is invoked on time, but the TriggerStateMachienRunner#shouldFire() returns false. After comparing time instances, I found that this issue occurs when the trigger is invoked exactly on time. It is because the AfterDelayFromFirstElementStateMachine does the following:
> {quote}    return delayedUntil != null
>         && getCurrentTime(context) != null
>         && getCurrentTime(context).isAfter(delayedUntil);{quote}
> which only returns true when the current processing time is AFTER (exclude equals) delayUntil. Should it actually be !getCurrentTime(context).isBefore(delayedUntil) ?



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