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Posted to dev@crunch.apache.org by "Gabriel Reid (JIRA)" <ji...@apache.org> on 2014/01/20 19:21:20 UTC

[jira] [Resolved] (CRUNCH-323) Add a section on getDetachedValue to the user guide

     [ https://issues.apache.org/jira/browse/CRUNCH-323?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Gabriel Reid resolved CRUNCH-323.
---------------------------------

    Resolution: Fixed

Committed to svn & published

> Add a section on getDetachedValue to the user guide
> ---------------------------------------------------
>
>                 Key: CRUNCH-323
>                 URL: https://issues.apache.org/jira/browse/CRUNCH-323
>             Project: Crunch
>          Issue Type: Improvement
>          Components: Site
>            Reporter: Gabriel Reid
>            Assignee: Gabriel Reid
>            Priority: Minor
>         Attachments: getDetachedValue.1.patch, getDetachedValue.patch
>
>
> The use of the PType#getDetachedValue is a useful bit of information, and a common gotcha when working with Crunch and MapReduce. A section explaining how to deal with retaining references within a DoFn should be added to the user guide.



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