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From "Nichole Treadway (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HBASE-4223) Support the ability to return a set of rows using Coprocessors
Date Thu, 18 Aug 2011 04:15:27 GMT

     [ https://issues.apache.org/jira/browse/HBASE-4223?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel

Nichole Treadway updated HBASE-4223:

    Attachment: HBASE-4223.patch

> Support the ability to return a set of rows using Coprocessors
> --------------------------------------------------------------
>                 Key: HBASE-4223
>                 URL: https://issues.apache.org/jira/browse/HBASE-4223
>             Project: HBase
>          Issue Type: Improvement
>          Components: coprocessors
>    Affects Versions: 0.92.0
>            Reporter: Nichole Treadway
>            Priority: Minor
>         Attachments: HBASE-4223.patch
> Currently HBase supports returning the results of aggregation operations using coprocessors
with the AggregationClient. It would be useful to include a client and implementation which
would return a set of rows which match a certain criteria using coprocessors as well. We have
a use case in our business process for this. 
> We have an initial implementation of this, which I've attached. The only limitation that
we've found is that it cannot be used to return very large sets of rows. If the result set
is very large, it would probably require some sort of pagination.

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