[jira] [Issue Comment Edited] (HBASE-2376) Add special SnapshotScanner which presents view of all data at some time in the past

["Lars Hofhansl (Issue Comment Edited) (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/HBASE-2376?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13185167#comment-13185167 ] 

Lars Hofhansl edited comment on HBASE-2376 at 1/12/12 9:18 PM:
---------------------------------------------------------------

Is this addressed with HBASE-4536?
                
      was (Author: lhofhansl):
    Is this fixed with HBASE-4536
                  
> Add special SnapshotScanner which presents view of all data at some time in the past
> ------------------------------------------------------------------------------------
>
>                 Key: HBASE-2376
>                 URL: https://issues.apache.org/jira/browse/HBASE-2376
>             Project: HBase
>          Issue Type: New Feature
>          Components: client, regionserver
>    Affects Versions: 0.20.3
>            Reporter: Jonathan Gray
>
> In order to support a particular kind of database "snapshot" feature which doesn't require copying data, we came up with the idea for a special SnapshotScanner that would present a view of your data at some point in the past.  The primary use case for this would be to be able to recover particular data/rows (but not all data, like a global rollback) should they have somehow been messed up (application fault, application bug, user error, etc.).

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