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From "HBase Review Board (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HBASE-3232) Fix KeyOnlyFilter + Add Value Length
Date Mon, 15 Nov 2010 03:16:16 GMT

    [ https://issues.apache.org/jira/browse/HBASE-3232?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12931967#action_12931967

HBase Review Board commented on HBASE-3232:

Message from: "Ryan Rawson" <ryanobjc@gmail.com>

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looks great, i just committed it

- Ryan

> 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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