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From "Billy Pearson (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HBASE-1170) Specify startRow and stopRow for MapReduce / TabieInputFormat
Date Fri, 06 Mar 2009 17:55:56 GMT

    [ https://issues.apache.org/jira/browse/HBASE-1170?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12679669#action_12679669

Billy Pearson commented on HBASE-1170:

I thank we should have three options for this in TableMapReduceUtil

startRow only
stopRow only
startRow & stopRow

with that there should not be many reasons not use it and it would be more complete.

> Specify startRow and stopRow for MapReduce / TabieInputFormat
> -------------------------------------------------------------
>                 Key: HBASE-1170
>                 URL: https://issues.apache.org/jira/browse/HBASE-1170
>             Project: Hadoop HBase
>          Issue Type: New Feature
>          Components: mapred
>            Reporter: Jonathan Gray
>            Assignee: Jonathan Gray
>             Fix For: 0.20.0
> We have a use case for this.  Can currently be implemented using filters but this still
requires a full table scan.
> In addition to extending TableMapReduceUtil, this would affect the splitting algorithm
to only include those regions containing keys within the start and stop.

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