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https://issues.apache.org/jira/browse/CRUNCH-394?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13998894#comment-13998894
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Micah Whitacre commented on CRUNCH-394:
---------------------------------------
+1
> Ensure that the Broadcast configuration in SparkRuntimeContext is never null
> ----------------------------------------------------------------------------
>
> Key: CRUNCH-394
> URL: https://issues.apache.org/jira/browse/CRUNCH-394
> Project: Crunch
> Issue Type: Bug
> Reporter: Josh Wills
> Fix For: 0.10.0, 0.8.3
>
> Attachments: CRUNCH-394.patch
>
>
> It looks like it's possible for Spark to recompute some RDDs that get
> reloaded between output runs. When this happens, the Broadcast<byte[]> field
> that contains the serialized Configuration object is null b/c we haven't
> declared an output RDD to run against yet. I added a change to ensure that
> the serialized Configuration object is always defined, even before we
> generate any output, to ensure that we don't throw an NPE.
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