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From "Nicolas Spiegelberg (Commented) (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-4783) Improve RowCounter to count rows in a specific key range.
Date Tue, 22 Nov 2011 04:10:42 GMT

    [ https://issues.apache.org/jira/browse/HBASE-4783?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13154856#comment-13154856
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Nicolas Spiegelberg commented on HBASE-4783:
--------------------------------------------

@Ted: Can change this for readability on commit.  This shouldn't matter for performance. 
The compiler should optimize this outside the loop since it is final.  Even if not, the string
will be cached in the static string space of the class file and this should just amount to
setting a register address each time.

Any other +1 blockers?
                
> Improve RowCounter to count rows in a specific key range.
> ---------------------------------------------------------
>
>                 Key: HBASE-4783
>                 URL: https://issues.apache.org/jira/browse/HBASE-4783
>             Project: HBase
>          Issue Type: Improvement
>            Reporter: Nicolas Spiegelberg
>            Assignee: Nicolas Spiegelberg
>            Priority: Trivial
>             Fix For: 0.94.0
>
>         Attachments: HBASE-4783.patch
>
>
> Currently RowCounter in MR package is a very simple map only job that does a full scan
of a table. Enhance the utility to let the user specify a key range and count the number of
rows in this range. 

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