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From "Ted Yu (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HBASE-7826) Improve Hbase Thrift v1 to return results in sorted order
Date Fri, 26 Jul 2013 23:41:49 GMT

     [ https://issues.apache.org/jira/browse/HBASE-7826?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Ted Yu updated HBASE-7826:
--------------------------

    Attachment: 7826-v6.patch

Patch v6 fixes long line in ThriftUtilities.java
                
> 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: 7826-v6.patch, hbase_7826.patch, hbase_7826.patch, HBASE-7826.patch,
hbase_7826_sortcolumnFlag.1.patch, hbase_7826_sortcolumnFlag.2.patch, hbase_7826_sortcolumnFlag.3.patch,
hbase_7826_sortcolumnFlag.4.patch, hbase_7826_sortcolumnFlag.5.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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