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From "stack (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-16299) Update REST API scanner with ability to do reverse scan
Date Thu, 04 Aug 2016 06:05:20 GMT

    [ https://issues.apache.org/jira/browse/HBASE-16299?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15407235#comment-15407235
] 

stack commented on HBASE-16299:
-------------------------------

I added [~minwoo.kang] to contributors and assigned him this issue [~ram_krish] BTW, you are
an admin too... you get the persons userid and paste that into the box of contributors ignoring
the warnings from JIRA while you are doing it (smile).

> Update REST API scanner with ability to do reverse scan
> -------------------------------------------------------
>
>                 Key: HBASE-16299
>                 URL: https://issues.apache.org/jira/browse/HBASE-16299
>             Project: HBase
>          Issue Type: Improvement
>          Components: REST
>    Affects Versions: 1.1.2
>         Environment: Not environment specific (tested on HDP 2.4.2)
>            Reporter: Bjorn Olsen
>            Assignee: Minwoo Kang
>            Priority: Minor
>         Attachments: HBASE-16299.master.001.patch
>
>
> HBASE-4811 "Support reverse scan" was implemented from version 0.98.0, and is available
in the Java API.
> However this functionality is not yet exposed via REST.
> Example of expected API call:
> http://server:port/table/*?startrow=1&endrow=10&reversed=true"
> (Returns rows ordered by key in reverse, eg from 9*** to 1*** )
> Based on my (limited) understanding this should be simple to add.
> See org.apach.hadoop.hbase.rest.TableResource.getScanResource
> This function creates a Scan object with parameters passed in from the REST API (I assume).

> Adding this functionality may be as simple as adding a "reversed" parameter to the REST
API which passes down to where the Scan object is created in TableResource.getScanResource.



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