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https://issues.apache.org/jira/browse/CRUNCH-420?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14032099#comment-14032099
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Josh Wills commented on CRUNCH-420:
-----------------------------------
So I think it's a misunderstanding of how breakpointing works; breakpoints are
only applied when we're deciding where to split two dependent GBK operations.
In this example, there is no dependent GBK, just an input file -> GBK (via the
join.)
> Breakpoints Not Working
> -----------------------
>
> Key: CRUNCH-420
> URL: https://issues.apache.org/jira/browse/CRUNCH-420
> Project: Crunch
> Issue Type: Bug
> Environment: Crunch 0.8.2
> Reporter: Allan Shoup
> Assignee: Josh Wills
> Attachments: Breakpoint2IT.java, testBreakpoint_plan.png
>
>
> Reading through CRUNCH-294, it looks like materialize is supposed to function
> as a breakpoint to the planner. I've seen several plans where it appeared to
> me a particular DoFn shouldn't have been repeated, but it was.
> I'll attach some supporting material.
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