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Posted to issues@hbase.apache.org by "ramkrishna.s.vasudevan (JIRA)" <ji...@apache.org> on 2016/08/08 08:59:20 UTC
[jira] [Resolved] (HBASE-16299) Update REST API scanner with
ability to do reverse scan
[ https://issues.apache.org/jira/browse/HBASE-16299?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
ramkrishna.s.vasudevan resolved HBASE-16299.
--------------------------------------------
Resolution: Fixed
Hadoop Flags: Reviewed
> 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
> Fix For: 2.0.0, 1.4.0
>
> Attachments: HBASE-16299.branch-1.3.001.patch, 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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