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https://issues.apache.org/jira/browse/CRUNCH-468?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14116963#comment-14116963
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Jeremy Beard commented on CRUNCH-468:
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I'd be happy to write a patch for this. I have two questions:
- Why is the PTypeFamily of the PCollection used for the running count?
- Which PTypeFamily should be used when the PCollection doesn't have one?
> MemPipeline.collectionOf() leads to NPE in PCollection.length()
> ---------------------------------------------------------------
>
> Key: CRUNCH-468
> URL: https://issues.apache.org/jira/browse/CRUNCH-468
> Project: Crunch
> Issue Type: Bug
> Components: Core
> Affects Versions: 0.10.0
> Reporter: Jeremy Beard
> Assignee: Josh Wills
>
> MemPipeline.collectionOf() creates a PCollection with a null PTypeFamily.
> When PCollection.length() is run it uses the PTypeFamily of the PCollection
> to serialize the running count of the records, which leads to a NPE for
> PCollections created as above.
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