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From "Kenneth Knowles (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (BEAM-794) Defer combining in case of merging windows with sideInputs
Date Wed, 26 Oct 2016 05:48:58 GMT

     [ https://issues.apache.org/jira/browse/BEAM-794?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Kenneth Knowles updated BEAM-794:
---------------------------------
    Description: 
For background, see BEAM-696.

If a Combine transformation is applied to a PCollection with merging windows and sideInput,
the runner should defer the execution of Combine.

For the SparkRunner this means that it should use groupByKey instead of combinePerKey/Globally.

  was:
For background, see BEAM-696.

If a Combine transformation is applied to a PCollection with merging windows and sideInput,
the runner should differ the execution of Combine.

For the SparkRunner this means that it should use groupByKey instead of combinePerKey/Globally.


> Defer combining in case of merging windows with sideInputs 
> -----------------------------------------------------------
>
>                 Key: BEAM-794
>                 URL: https://issues.apache.org/jira/browse/BEAM-794
>             Project: Beam
>          Issue Type: Bug
>          Components: runner-spark
>            Reporter: Amit Sela
>            Assignee: Amit Sela
>
> For background, see BEAM-696.
> If a Combine transformation is applied to a PCollection with merging windows and sideInput,
the runner should defer the execution of Combine.
> For the SparkRunner this means that it should use groupByKey instead of combinePerKey/Globally.



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