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Posted to dev@accumulo.apache.org by "Billie Rinaldi (Commented) (JIRA)" <ji...@apache.org> on 2012/01/23 19:56:40 UTC

[jira] [Commented] (ACCUMULO-319) Provide optional stricness for SummingCombiner

    [ https://issues.apache.org/jira/browse/ACCUMULO-319?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13191349#comment-13191349 ] 

Billie Rinaldi commented on ACCUMULO-319:
-----------------------------------------

You should add a static method to TypedValueCombiner to set the lossy parameter on an IteratorSetting object (e.g., see the setCombineAllColumns method of Combiner).
                
> Provide optional stricness for SummingCombiner
> ----------------------------------------------
>
>                 Key: ACCUMULO-319
>                 URL: https://issues.apache.org/jira/browse/ACCUMULO-319
>             Project: Accumulo
>          Issue Type: Improvement
>            Reporter: John Vines
>             Fix For: 1.4.0
>
>
> Currently the summing combiner will throw an error on a format exception. This is great for high precision combining to ensure that all data is included. However, there is a potential use case for people who just want data combined and do not want a wrench thrown in the system for a bad value. Rather then having to write a whole different combiner, we should add a configuration option to allow lossy combining which does not take into account bad value.

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