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From "Luke Cwik (JIRA)" <>
Subject [jira] [Commented] (BEAM-2932) Spark support for portable side input
Date Thu, 19 Oct 2017 21:55:00 GMT


Luke Cwik commented on BEAM-2932:
--------------------------------- migrated to using a multimap as the materialization
format for side inputs.

The migration used a trivial multimap -> iterable -> multimap conversion within the
Spark runner for first pass implementation purposes. Note that this is no different then the
current materialization from a performance perspective it just moves this logic within the
purview of the runner. Consider improving the internal materialization format from this trivial
and unoptimal mapping.

> Spark support for portable side input
> -------------------------------------
>                 Key: BEAM-2932
>                 URL:
>             Project: Beam
>          Issue Type: Sub-task
>          Components: runner-spark
>            Reporter: Henning Rohde
>              Labels: portability

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