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https://issues.apache.org/jira/browse/CRUNCH-449?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14083370#comment-14083370
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Gabriel Reid commented on CRUNCH-449:
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+1, looks good
> Add sequentialDo function for injecting arbitrary non-parallel code
> -------------------------------------------------------------------
>
> Key: CRUNCH-449
> URL: https://issues.apache.org/jira/browse/CRUNCH-449
> Project: Crunch
> Issue Type: Bug
> Components: Core
> Reporter: Josh Wills
> Assignee: Josh Wills
> Attachments: CRUNCH-449.patch, CRUNCH-449b.patch, CRUNCH-449c.patch,
> CRUNCH-449d.patch, CRUNCH-449e.patch
>
>
> I've been noodling on this one for awhile: how to add the ability to execute
> some code if and only if one or more targets are created, and have that
> executed code (optionally) return one or more new PCollections as a result. I
> was thinking that this functionality could be wired in to libraries to do
> things like bulk loading HBase tables or running Sqoop jobs as part of Crunch
> pipelines automatically.
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