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https://issues.apache.org/jira/browse/HBASE-1605?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12726587#action_12726587
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Chris K Wensel commented on HBASE-1605:
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Nope, doesn't look like it. I'm not calling for a configurable number of 
mappers/splits. 

But asking the total number of rows returned across all splits be exactly equal 
to an optional 'limit' value.

And pointing out the current impl, as I see it in trunk, sets the splits to the 
number of regions in a table thus implying that a single global Filter across 
all splits won't work as limit may not be evenly divided among the splits.

It will be nice to specify the number of mappers/splits and have it honored 
though.

> TableInputFormat should support 'limit'
> ---------------------------------------
>
>                 Key: HBASE-1605
>                 URL: https://issues.apache.org/jira/browse/HBASE-1605
>             Project: Hadoop HBase
>          Issue Type: Improvement
>          Components: mapred
>            Reporter: Chris K Wensel
>
> Would be useful if TableInputFormat could be passed a 'limit' property value 
> that limited the total result set to the value of 'limit'.

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