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Posted to issues@beam.apache.org by "Luke Cwik (Jira)" <ji...@apache.org> on 2020/04/22 20:54:00 UTC
[jira] [Resolved] (BEAM-2421) Migrate Apache Beam to use impulse
primitive as the only root primitive
[ https://issues.apache.org/jira/browse/BEAM-2421?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Luke Cwik resolved BEAM-2421.
-----------------------------
Fix Version/s: Not applicable
Resolution: Works for Me
Java/Python/Go all use Impulse as the root operator by default. References to the "read" operator still need to be cleaned up which will be tracked in a future JIRA.
> Migrate Apache Beam to use impulse primitive as the only root primitive
> -----------------------------------------------------------------------
>
> Key: BEAM-2421
> URL: https://issues.apache.org/jira/browse/BEAM-2421
> Project: Beam
> Issue Type: Improvement
> Components: beam-model
> Reporter: Luke Cwik
> Priority: Major
> Labels: portability
> Fix For: Not applicable
>
> Time Spent: 4.5h
> Remaining Estimate: 0h
>
> The impulse source emits a single byte array element within the global window.
> This is in preparation for using SDF as the replacement for different bounded and unbounded source implementations.
> Before:
> Read(Source) -> ParDo -> ...
> Impulse -> SDF(Source) -> ParDo -> ...
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