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From "stack (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HBASE-6704) StoreScanner KV usage improvement
Date Fri, 28 Sep 2012 23:01:07 GMT

     [ https://issues.apache.org/jira/browse/HBASE-6704?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

stack updated HBASE-6704:
-------------------------

    Attachment: 0001-jira-HBASE-6704-Improve-KV-usage-in-StoreScanner-nex.patch

Forward port from 0.89fb branch
                
> StoreScanner KV usage improvement
> ---------------------------------
>
>                 Key: HBASE-6704
>                 URL: https://issues.apache.org/jira/browse/HBASE-6704
>             Project: HBase
>          Issue Type: Improvement
>          Components: regionserver
>         Environment: 89-fb
>            Reporter: Ramkumar Vadali
>            Priority: Trivial
>         Attachments: 0001-jira-HBASE-6704-Improve-KV-usage-in-StoreScanner-nex.patch
>
>
> StoreScanner#next tries to ensure that the KVs are pulled from the heap in-order. The
prevKV is used for this and is compared with the latest KV pulled from the heap. Since copyKV
can be modified by ScanQueryMatcher, prevKV should track the KV pulled from the heap, and
not copyKV. This is a one-line fix.

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