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https://issues.apache.org/jira/browse/HBASE-3232?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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ryan rawson resolved HBASE-3232.
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    Resolution: Fixed

committed to trunk + 0.90

> Fix KeyOnlyFilter + Add Value Length
> ------------------------------------
>
>                 Key: HBASE-3232
>                 URL: https://issues.apache.org/jira/browse/HBASE-3232
>             Project: HBase
>          Issue Type: Bug
>            Reporter: Nicolas Spiegelberg
>            Assignee: Nicolas Spiegelberg
>            Priority: Blocker
>             Fix For: 0.90.0
>
>
> HBASE-3211 altered filter code to mutate KeyValues.  What could go wrong?  
> Well, your scan could mess up because the KVHeap compare functions don't work 
> properly.  If we're going to soft mutate KVs in filter code, we also need to 
> soft copy the KV before filtering.  This was found while adding the ability 
> to have KeyOnlyFilter have the option to return the Value's length.  This is 
> useful for grouping your reduce tasks into equal-sized blocks.

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