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From "Josh Wills (JIRA)" <j...@apache.org>
Subject [jira] [Created] (CRUNCH-412) MemPipeline mode for simulating MapReduce quirks
Date Wed, 04 Jun 2014 15:11:02 GMT
Josh Wills created CRUNCH-412:
---------------------------------

             Summary: MemPipeline mode for simulating MapReduce quirks
                 Key: CRUNCH-412
                 URL: https://issues.apache.org/jira/browse/CRUNCH-412
             Project: Crunch
          Issue Type: Improvement
          Components: Core
            Reporter: Josh Wills
            Assignee: Josh Wills


>From a discussion on the mailing list, we'd like to have a MemPipeline mode that simulates
a couple of the quirks of MapReduce/MRPipeline for more reliable testing, namely:

1) Shuffle code that re-uses reduce-side objects so we can detect bugs caused by object modification,
and
2) Serializes/deserializes DoFns before running them in order to test for any non-serializable
code that sneaks into a pipeline.



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