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From "Keith Turner (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (ACCUMULO-1582) continueScan should never go backwards
Date Thu, 18 Jul 2013 18:18:49 GMT

    [ https://issues.apache.org/jira/browse/ACCUMULO-1582?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13712595#comment-13712595
] 

Keith Turner commented on ACCUMULO-1582:
----------------------------------------

For a scan session the tablet server keeps track of the continue key on the server side, the
client never sees it.   The tablet server could ensure the server side continue key keeps
increasing.  On the client side, the scanner could ensure the key it uses to start scan sessions
increases.  I suppose you can assume that keys should increase because of ACCUMULO-1527.
                
> continueScan should never go backwards
> --------------------------------------
>
>                 Key: ACCUMULO-1582
>                 URL: https://issues.apache.org/jira/browse/ACCUMULO-1582
>             Project: Accumulo
>          Issue Type: Bug
>          Components: tserver
>            Reporter: Eric Newton
>
> Due to complex key transformations, a scanner kept handing the same start key to continueScan.
The tablet server should detect this and fail.

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