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Posted to issues@hbase.apache.org by "Lars Hofhansl (JIRA)" <ji...@apache.org> on 2012/08/14 02:19:38 UTC

[jira] [Updated] (HBASE-6577) RegionScannerImpl.nextRow() should seek to next row

     [ https://issues.apache.org/jira/browse/HBASE-6577?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Lars Hofhansl updated HBASE-6577:
---------------------------------

    Attachment: 6577.txt

As simple as this. Just seek to the end of the row first, then iterate to the beginning of the next row. In wide rows KVs with many versions when used with filters this should be a big win.
                
> RegionScannerImpl.nextRow() should seek to next row
> ---------------------------------------------------
>
>                 Key: HBASE-6577
>                 URL: https://issues.apache.org/jira/browse/HBASE-6577
>             Project: HBase
>          Issue Type: Bug
>            Reporter: Lars Hofhansl
>            Assignee: Lars Hofhansl
>             Fix For: 0.96.0, 0.94.2
>
>         Attachments: 6577.txt
>
>
> RegionScannerImpl.nextRow() is called when a filter filters the entire row. In that case we should seek to the next row rather then iterating over all versions of all columns to get there.

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