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https://issues.apache.org/jira/browse/BEAM-5707?focusedWorklogId=323586&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-323586
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ASF GitHub Bot logged work on BEAM-5707:
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                Author: ASF GitHub Bot
            Created on: 04/Oct/19 17:15
            Start Date: 04/Oct/19 17:15
    Worklog Time Spent: 10m 
      Work Description: tweise commented on pull request #9728: [BEAM-5707] 
Modify Flink streaming impulse function to include a counter
URL: https://github.com/apache/beam/pull/9728
 
 
   
 
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Issue Time Tracking
-------------------

    Worklog Id:     (was: 323586)
    Time Spent: 8h  (was: 7h 50m)

> Add a portable Flink streaming synthetic source for testing
> -----------------------------------------------------------
>
>                 Key: BEAM-5707
>                 URL: https://issues.apache.org/jira/browse/BEAM-5707
>             Project: Beam
>          Issue Type: Improvement
>          Components: runner-flink
>            Reporter: Micah Wylde
>            Assignee: Micah Wylde
>            Priority: Minor
>             Fix For: 2.9.0
>
>          Time Spent: 8h
>  Remaining Estimate: 0h
>
> Currently there are no built-in streaming sources for portable pipelines. 
> This makes it hard to test streaming functionality in the Python SDK.
> It would be very useful to add a periodic impulse source that (with some 
> configurable frequency) outputs an empty byte array, which can then be 
> transformed as desired inside the python pipeline. More context in this 
> [mailing list 
> discussion|https://lists.apache.org/thread.html/b44a648ab1d0cb200d8bfe4b280e9dad6368209c4725609cbfbbe410@%3Cdev.beam.apache.org%3E].



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