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From "Jim Kellerman (JIRA)" <j...@apache.org>
Subject [jira] Updated: (HBASE-832) Problem with row keys beginnig with characters < than ',' and the region location cache
Date Thu, 21 Aug 2008 23:24:44 GMT

     [ https://issues.apache.org/jira/browse/HBASE-832?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Jim Kellerman updated HBASE-832:
--------------------------------

    Fix Version/s:     (was: 0.18.0)
                   0.19.0

> Problem with row keys beginnig with characters < than ',' and the region location
cache
> ---------------------------------------------------------------------------------------
>
>                 Key: HBASE-832
>                 URL: https://issues.apache.org/jira/browse/HBASE-832
>             Project: Hadoop HBase
>          Issue Type: Bug
>          Components: client
>    Affects Versions: 0.2.0
>            Reporter: Jean-Daniel Cryans
>             Fix For: 0.19.0
>
>
> We currently have a problem the way we design .META. row keys. When user table row keys
begin with characters lesser than ',' like a '$', any operation will fail when:
> - A client has a certain set of regions in cache
> - One region with the faulty row key splits 
> - The client receives a request for a row in the split region
> The reason is that it will first get a NSRE then it will try to locate a region using
the passed row key. For example: 
> Row in META: entities,,1216750777411
> Row passed: entities,$-94f9386f-e235-4cbd-aacc-37210a870991,99999999999999
> The passed row is lesser then the row in .META.

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