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From "ASF GitHub Bot (JIRA)" <j...@apache.org>
Subject [jira] [Work logged] (BEAM-5519) Spark Streaming Duplicated Encoding/Decoding Effort
Date Thu, 27 Sep 2018 20:56:00 GMT

     [ https://issues.apache.org/jira/browse/BEAM-5519?focusedWorklogId=148902&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-148902
]

ASF GitHub Bot logged work on BEAM-5519:
----------------------------------------

                Author: ASF GitHub Bot
            Created on: 27/Sep/18 20:55
            Start Date: 27/Sep/18 20:55
    Worklog Time Spent: 10m 
      Work Description: kyle-winkelman opened a new pull request #6511: [BEAM-5519] Remove
call to groupByKey in Spark Streaming.
URL: https://github.com/apache/beam/pull/6511
 
 
   Prevent the duplication of encode/decode cycle in wasted call to groupByKey in spark streaming.
It is a waste because after the groupByKey is a call to updateStateByKey which will ensure
that the data is shuffled to the correct processing location.
   ------------------------
   
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   Post-Commit Tests Status (on master branch)
   ------------------------------------------------------------------------------------------------
   
   Lang | SDK | Apex | Dataflow | Flink | Gearpump | Samza | Spark
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   Go | [![Build Status](https://builds.apache.org/job/beam_PostCommit_Go_GradleBuild/lastCompletedBuild/badge/icon)](https://builds.apache.org/job/beam_PostCommit_Go_GradleBuild/lastCompletedBuild/)
| --- | --- | --- | --- | --- | ---
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| [![Build Status](https://builds.apache.org/job/beam_PostCommit_Java_ValidatesRunner_Spark_Gradle/lastCompletedBuild/badge/icon)](https://builds.apache.org/job/beam_PostCommit_Java_ValidatesRunner_Spark_Gradle/lastCompletedBuild/)
   Python | [![Build Status](https://builds.apache.org/job/beam_PostCommit_Python_Verify/lastCompletedBuild/badge/icon)](https://builds.apache.org/job/beam_PostCommit_Python_Verify/lastCompletedBuild/)
| --- | [![Build Status](https://builds.apache.org/job/beam_PostCommit_Py_VR_Dataflow/lastCompletedBuild/badge/icon)](https://builds.apache.org/job/beam_PostCommit_Py_VR_Dataflow/lastCompletedBuild/)
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Issue Time Tracking
-------------------

            Worklog Id:     (was: 148902)
            Time Spent: 10m
    Remaining Estimate: 0h

> Spark Streaming Duplicated Encoding/Decoding Effort
> ---------------------------------------------------
>
>                 Key: BEAM-5519
>                 URL: https://issues.apache.org/jira/browse/BEAM-5519
>             Project: Beam
>          Issue Type: Bug
>          Components: runner-spark
>            Reporter: Kyle Winkelman
>            Assignee: Kyle Winkelman
>            Priority: Major
>              Labels: spark, spark-streaming
>          Time Spent: 10m
>  Remaining Estimate: 0h
>
> When using the SparkRunner in streaming mode. There is a call to groupByKey followed
by a call to updateStateByKey. BEAM-1815 fixed an issue where this used to cause 2 shuffles
but it still causes 2 encode/decode cycles.



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