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From "Amit Sela (JIRA)" <>
Subject [jira] [Created] (BEAM-647) Faul-tolerant sideInputs via Broadcast variables.
Date Tue, 20 Sep 2016 18:53:20 GMT
Amit Sela created BEAM-647:

             Summary: Faul-tolerant sideInputs via Broadcast variables.
                 Key: BEAM-647
             Project: Beam
          Issue Type: Bug
          Components: runner-spark
            Reporter: Amit Sela
            Assignee: Amit Sela

Following which enables checkpointing to
recover from failures, sideInputs (being implemented by broadcast variables) should be handled
in a specific manner as described here:

This is a bit more complicated than Aggregators (via Accumulators) as they are implemented
using a single "aggregating"  Accumulator, while a pipeline may contain multiple sideInputs.

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