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From "Nick Dimiduk (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HBASE-8865) HBase shell split command acts incorrectly with hex split keys.
Date Thu, 11 Jul 2013 22:19:48 GMT

     [ https://issues.apache.org/jira/browse/HBASE-8865?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Nick Dimiduk updated HBASE-8865:
--------------------------------

    Component/s: Usability
    
> HBase shell split command acts incorrectly with hex split keys.
> ---------------------------------------------------------------
>
>                 Key: HBASE-8865
>                 URL: https://issues.apache.org/jira/browse/HBASE-8865
>             Project: HBase
>          Issue Type: Bug
>          Components: shell, Usability
>    Affects Versions: 0.94.8
>         Environment: Linux
>            Reporter: Ding Haifeng
>         Attachments: 8865.txt
>
>
> When I tried to do a manual region split from HBase shell, I found that split command
acts incorrectly with hex split keys. 
> Here is an example.
> I execute hbase(main):003:0> split 'tsdb', "\x00\x00\xC3" .
> While I expect it to split at the 3-byte key "\x00\x00\xC3" , it actually split at a
5-byte key "\x00\x00\xEF\xBF\xBD". 
> I test with more split keys and find some patterns:
> * If the all bytes in the split key represented in hexadecimal are between "\x00" and
"\x7F" , it works as expected and split at exactly the key specified.
> * If there are any bytes between "\x80" and "xFF", it works incorrectly. No matter the
byte is, it is interpreted as "\xEF\xBF\xBD". Here is another example. Specifying split key
"\x00\xA0\x00\xB0" actually splits at "\x00\xEF\xBF\xBD\x00\xEF\xBF\xBD".
> I'm running Hbase 0.94.8, r1485407, both server-side and client-side. 

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