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https://issues.apache.org/jira/browse/BEAM-14244?focusedWorklogId=753404&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-753404
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ASF GitHub Bot logged work on BEAM-14244:
-----------------------------------------

                Author: ASF GitHub Bot
            Created on: 06/Apr/22 13:48
            Start Date: 06/Apr/22 13:48
    Worklog Time Spent: 10m 
      Work Description: steveniemitz commented on PR #17262:
URL: https://github.com/apache/beam/pull/17262#issuecomment-1090295080

   > LGTM. Do you plan to do the follow-up for watermark hold in Flink? Would 
you do a `@ValidatesRunner` test for that?
   
   If I have some time I can take a swing at it, but I don't think it'd be for 
a little while.  I also don't use Flink so verifying that it actually works 
correctly will be more tricky. :)
   
   On the surface the fix looks pretty easy, just adding a watermark hold in 
DoFnOperator for processing time timers as it does for event time ones (and 
clearing them as well).




Issue Time Tracking
-------------------

    Worklog Id:     (was: 753404)
    Time Spent: 4h  (was: 3h 50m)

> Processing time timers should use outputTimestamp rather than input watermark 
> for their timestamp
> -------------------------------------------------------------------------------------------------
>
>                 Key: BEAM-14244
>                 URL: https://issues.apache.org/jira/browse/BEAM-14244
>             Project: Beam
>          Issue Type: Bug
>          Components: runner-core, sdk-java-core
>            Reporter: Steve Niemitz
>            Assignee: Steve Niemitz
>            Priority: P1
>          Time Spent: 4h
>  Remaining Estimate: 0h
>
> Currently processing time timers ignore the outputTimestamp and instead use 
> the input watermark at the time they fire.  This is wrong because the input 
> watermark can have advanced arbitrarily far past the actual output timestamp 
> when it fires.
> The correct behavior should be to instead use the outputTimestamp the timer 
> was configured to fire with.



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