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From "Jean-Daniel Cryans (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-7826) Improve Hbase Thrift v1 to return results in sorted order
Date Mon, 15 Jul 2013 22:52:51 GMT

    [ https://issues.apache.org/jira/browse/HBASE-7826?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13709107#comment-13709107
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Jean-Daniel Cryans commented on HBASE-7826:
-------------------------------------------

[~shiven] Thank you for uploading the patch for trunk. Please be aware that Thrift 0.9.0 is
used in that branch, not 0.8.0 which you used. Just to be safe, can you regenerate the thrift
files with the correct version.

Also, since we are adding a new functionality, could you write a small unit test that exercises
your new code and add it to {{TestThriftServer}}?
                
> Improve Hbase Thrift v1 to return results in sorted order
> ---------------------------------------------------------
>
>                 Key: HBASE-7826
>                 URL: https://issues.apache.org/jira/browse/HBASE-7826
>             Project: HBase
>          Issue Type: New Feature
>          Components: Thrift
>    Affects Versions: 0.94.0
>            Reporter: Shivendra Pratap Singh
>            Assignee: Shivendra Pratap Singh
>            Priority: Minor
>              Labels: Hbase, Thrift
>         Attachments: hbase_7826.patch, hbase_7826.patch, hbase_7826_sortcolumnFlag.1.patch,
hbase_7826_sortcolumnFlag.2.patch, hbase_7826_sortcolumnFlag.3.patch, hbase_7826_sortcolumnFlag.patch,
hbase_7826_trunk.patch
>
>
> Hbase natively stores columns sorted based on the column qualifier. A scan is guaranteed
to return sorted columns. The Java API works fine but the Thrift API is broken. Hbase uses
TreeMap that ensures that sort order is maintained. However Hbase thrift specification uses
a simple Map to store the data. A map, since it is unordered doesn't result in columns being
returned in a sort order that is consistent with their storage in Hbase.

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