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Posted to dev@crunch.apache.org by "Gabriel Reid (JIRA)" <ji...@apache.org> on 2014/01/19 21:27:19 UTC

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

Gabriel Reid created CRUNCH-323:
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             Summary: 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.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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