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https://issues.apache.org/jira/browse/BEAM-5707?focusedWorklogId=323338&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-323338
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ASF GitHub Bot logged work on BEAM-5707:
----------------------------------------
Author: ASF GitHub Bot
Created on: 04/Oct/19 11:25
Start Date: 04/Oct/19 11:25
Worklog Time Spent: 10m
Work Description: mxm commented on pull request #9728: [BEAM-5707] Modify
Flink streaming impulse function to include a counter
URL: https://github.com/apache/beam/pull/9728
Flink's streaming impulse function is used for load tests which used to be
impossible to realize with timers. This extends the functionality to send a
per-partition counter with the impulse, instead of just an empty byte array.
I've also filed https://jira.apache.org/jira/browse/BEAM-8353 to start the
process of removing the proprietary source.
Post-Commit Tests Status (on master branch)
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Go | [](https://builds.apache.org/job/beam_PostCommit_Go/lastCompletedBuild/)
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Java | [](https://builds.apache.org/job/beam_PostCommit_Java/lastCompletedBuild/)
| [](https://builds.apache.org/job/beam_PostCommit_Java_ValidatesRunner_Apex/lastCompletedBuild/)
| [](https://builds.apache.org/job/beam_PostCommit_Java_ValidatesRunner_Dataflow/lastCompletedBuild/)
| [](https://builds.apache.org/job/beam_PostCommit_Java_ValidatesRunner_Flink/lastCompletedBuild/)<br>[](https://builds.apache.org/job/beam_PostCommit_Java_PVR_Flink_Batch/lastCompletedBuild/)<br>[](https://builds.apache.org/job/beam_PostCommit_Java_PVR_Flink_Streaming/lastCompletedBuild/)
| [](https://builds.apache.org/job/beam_PostCommit_Java_ValidatesRunner_Gearpump/lastCompletedBuild/)
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| [](https://builds.apache.org/job/beam_PostCommit_Java_ValidatesRunner_Spark/lastCompletedBuild/)<br>[](https://builds.apache.org/job/beam_PostCommit_Java_PVR_Spark_Batch/lastCompletedBuild/)
Python | [](https://builds.apache.org/job/beam_PostCommit_Python2/lastCompletedBuild/)<br>[](https://builds.apache.org/job/beam_PostCommit_Python35/lastCompletedBuild/)<br>[](https://builds.apache.org/job/beam_PostCommit_Python36/lastCompletedBuild/)<br>[](https://builds.apache.org/job/beam_PostCommit_Python37/lastCompletedBuild/)
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| [](https://builds.apache.org/job/beam_PreCommit_Python2_PVR_Flink_Cron/lastCompletedBuild/)<br>[](https://builds.apache.org/job/beam_PostCommit_Python35_VR_Flink/lastCompletedBuild/)
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XLang | --- | --- | --- | [](https://builds.apache.org/job/beam_PostCommit_XVR_Flink/lastCompletedBuild/)
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Pre-Commit Tests Status (on master branch)
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--- |Java | Python | Go | Website
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Non-portable | [](https://builds.apache.org/job/beam_PreCommit_Java_Cron/lastCompletedBuild/)
| [](https://builds.apache.org/job/beam_PreCommit_Python_Cron/lastCompletedBuild/)<br>[](https://builds.apache.org/job/beam_PreCommit_PythonLint_Cron/lastCompletedBuild/)
| [](https://builds.apache.org/job/beam_PreCommit_Go_Cron/lastCompletedBuild/)
| [](https://builds.apache.org/job/beam_PreCommit_Website_Cron/lastCompletedBuild/)
Portable | --- | [](https://builds.apache.org/job/beam_PreCommit_Portable_Python_Cron/lastCompletedBuild/)
| --- | ---
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Issue Time Tracking
-------------------
Worklog Id: (was: 323338)
Time Spent: 7h 50m (was: 7h 40m)
> 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: 7h 50m
> 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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