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From "Josh Wills (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (CRUNCH-449) Add sequentialDo function for injecting arbitrary non-parallel code
Date Mon, 28 Jul 2014 19:35:39 GMT

    [ https://issues.apache.org/jira/browse/CRUNCH-449?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14076667#comment-14076667
] 

Josh Wills commented on CRUNCH-449:
-----------------------------------

Thanks for the feedback guys-- will get on it and report back w/new patches.

> 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
>
>
> 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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