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https://issues.apache.org/jira/browse/BEAM-5519?focusedWorklogId=148908&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-148908
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ASF GitHub Bot logged work on BEAM-5519:
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Author: ASF GitHub Bot
Created on: 27/Sep/18 21:07
Start Date: 27/Sep/18 21:07
Worklog Time Spent: 10m
Work Description: kyle-winkelman commented on issue #6511: [BEAM-5519]
Remove call to groupByKey in Spark Streaming.
URL: https://github.com/apache/beam/pull/6511#issuecomment-425243571
I am not extremely confident in this code I just wanted to put something
together to demonstrate my point. I also think there is some additional
refactoring required such as renaming
SparkGroupAlsoByWindowViaWindowSet.groupAlsoByWindow, but I would like to get
some feedback before continuing.
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Issue Time Tracking
-------------------
Worklog Id: (was: 148908)
Time Spent: 20m (was: 10m)
> 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: 20m
> 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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