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From "Eric Newton (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (ACCUMULO-625) consider augmenting session state with "breadcrumbs"
Date Fri, 04 Jan 2013 23:08:12 GMT

    [ https://issues.apache.org/jira/browse/ACCUMULO-625?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13544335#comment-13544335
] 

Eric Newton commented on ACCUMULO-625:
--------------------------------------

There has not, and it is not slated for 1.5.

Do you have thoughts on what you would like to see?


                
> consider augmenting session state with "breadcrumbs"
> ----------------------------------------------------
>
>                 Key: ACCUMULO-625
>                 URL: https://issues.apache.org/jira/browse/ACCUMULO-625
>             Project: Accumulo
>          Issue Type: Improvement
>          Components: tserver
>            Reporter: Eric Newton
>            Assignee: Keith Turner
>
> Presently, the iterator stack can be created and destroyed at the whim of the tserver
and its buffering needs.  In complex iterations, lower-level iterators can make significant
progress which is not inherently obvious in any returned key.  When the iterator stack is
re-created to continue a query, the last key returned is used to {{seek()}} the iterators.
 Lower-level iterators must re-scan their data to move back to the old position.
> Consider a mechanism to save progress beyond the last key returned.
>   

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