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https://issues.apache.org/jira/browse/CRUNCH-54?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13444589#comment-13444589
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Josh Wills commented on CRUNCH-54:
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Hrm. So NPEs are never good, although I wouldn't recommend using Crunch in the
way that it is done in this test case-- you only want to materialize() a
collection if you're going to read the contents into the client. Also, so I'm
clear, is this running against the refactored planner from CRUNCH-34, and so we
should fix it for 0.4.0?
> MSCRPlanner throws NPE while writing back a file using a materialized
> Pcollection
> ---------------------------------------------------------------------------------
>
> Key: CRUNCH-54
> URL: https://issues.apache.org/jira/browse/CRUNCH-54
> Project: Crunch
> Issue Type: Bug
> Components: IO
> Reporter: Rahul Sharma
> Attachments: MrPipelinetTest.java
>
>
> When we try to write back a materialized collection to a file using the
> To.Text(..) the MCSPlanner throws back a NPE.
> java.lang.NullPointerException
> at
> org.apache.crunch.impl.mr.plan.MSCRPlanner.constructJobPrototypes(MSCRPlanner.java:192)
> at org.apache.crunch.impl.mr.plan.MSCRPlanner.plan(MSCRPlanner.java:98)
> at org.apache.crunch.impl.mr.MRPipeline.run(MRPipeline.java:116)
> at
> org.apache.crunch.MrPipelinetTest.pipelineShouldNotFail(MrPipelinetTest.java:41)
>
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