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From "Josh Elser (JIRA)" <j...@apache.org>
Subject [jira] [Comment Edited] (ACCUMULO-2539) SummingCombiner does not adhere to Combiner#COLUMNS_OPTION
Date Tue, 25 Mar 2014 20:02:15 GMT

    [ https://issues.apache.org/jira/browse/ACCUMULO-2539?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13947074#comment-13947074
] 

Josh Elser edited comment on ACCUMULO-2539 at 3/25/14 8:01 PM:
---------------------------------------------------------------

Thanks for the feedback, [~billie.rinaldi]. I'll fix that stuff before committing.

Edit: Regarding the imports, the new imports are from the Javadoc references. Eclipse isn't
showing me any compiler warnings.


was (Author: elserj):
Thanks for the feedback, [~billie.rinaldi]. I'll fix that stuff before committing.

> SummingCombiner does not adhere to Combiner#COLUMNS_OPTION
> ----------------------------------------------------------
>
>                 Key: ACCUMULO-2539
>                 URL: https://issues.apache.org/jira/browse/ACCUMULO-2539
>             Project: Accumulo
>          Issue Type: Bug
>          Components: client
>    Affects Versions: 1.4.4, 1.5.1
>            Reporter: Josh Elser
>            Assignee: Josh Elser
>             Fix For: 1.4.5, 1.5.2, 1.6.1
>
>         Attachments: 0001-ACCUMULO-2539-Expand-javadoc-for-Combiner-to-be-more.patch
>
>
> In testing out the SummingCombiner, I set the Combiner#COLUMNS_OPTION which led me to
believe that the SummingCombiner would limit columns to the set that is provided as an option
through the IteratorSetting.
> In practice, this was not the case as Combiner#findTop isn't used, and thus that column
list is not adhered to. I can get the expected functionality out of SummingCombiner by calling
{{ScannerBase#fetchColumn}} or {{ScannerBase#fetchColumnFamily}}.



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